25 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
28 |
* $Id: cpu_arm_instr.c,v 1.39 2005/10/27 14:01:13 debug Exp $ |
* $Id: cpu_arm_instr.c,v 1.54 2005/11/19 18:53:07 debug Exp $ |
29 |
* |
* |
30 |
* ARM instructions. |
* ARM instructions. |
31 |
* |
* |
125 |
* functions, otherwise they will simply call the X function. |
* functions, otherwise they will simply call the X function. |
126 |
*/ |
*/ |
127 |
|
|
128 |
|
uint8_t condition_hi[16] = { 0,0,1,1, 0,0,0,0, 0,0,1,1, 0,0,0,0 }; |
129 |
|
uint8_t condition_ge[16] = { 1,0,1,0, 1,0,1,0, 0,1,0,1, 0,1,0,1 }; |
130 |
|
uint8_t condition_gt[16] = { 1,0,1,0, 0,0,0,0, 0,1,0,1, 0,0,0,0 }; |
131 |
|
|
132 |
#define Y(n) void arm_instr_ ## n ## __eq(struct cpu *cpu, \ |
#define Y(n) void arm_instr_ ## n ## __eq(struct cpu *cpu, \ |
133 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
134 |
{ if (cpu->cd.arm.cpsr & ARM_FLAG_Z) \ |
{ if (cpu->cd.arm.flags & ARM_F_Z) \ |
135 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
136 |
void arm_instr_ ## n ## __ne(struct cpu *cpu, \ |
void arm_instr_ ## n ## __ne(struct cpu *cpu, \ |
137 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
138 |
{ if (!(cpu->cd.arm.cpsr & ARM_FLAG_Z)) \ |
{ if (!(cpu->cd.arm.flags & ARM_F_Z)) \ |
139 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
140 |
void arm_instr_ ## n ## __cs(struct cpu *cpu, \ |
void arm_instr_ ## n ## __cs(struct cpu *cpu, \ |
141 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
142 |
{ if (cpu->cd.arm.cpsr & ARM_FLAG_C) \ |
{ if (cpu->cd.arm.flags & ARM_F_C) \ |
143 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
144 |
void arm_instr_ ## n ## __cc(struct cpu *cpu, \ |
void arm_instr_ ## n ## __cc(struct cpu *cpu, \ |
145 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
146 |
{ if (!(cpu->cd.arm.cpsr & ARM_FLAG_C)) \ |
{ if (!(cpu->cd.arm.flags & ARM_F_C)) \ |
147 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
148 |
void arm_instr_ ## n ## __mi(struct cpu *cpu, \ |
void arm_instr_ ## n ## __mi(struct cpu *cpu, \ |
149 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
150 |
{ if (cpu->cd.arm.cpsr & ARM_FLAG_N) \ |
{ if (cpu->cd.arm.flags & ARM_F_N) \ |
151 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
152 |
void arm_instr_ ## n ## __pl(struct cpu *cpu, \ |
void arm_instr_ ## n ## __pl(struct cpu *cpu, \ |
153 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
154 |
{ if (!(cpu->cd.arm.cpsr & ARM_FLAG_N)) \ |
{ if (!(cpu->cd.arm.flags & ARM_F_N)) \ |
155 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
156 |
void arm_instr_ ## n ## __vs(struct cpu *cpu, \ |
void arm_instr_ ## n ## __vs(struct cpu *cpu, \ |
157 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
158 |
{ if (cpu->cd.arm.cpsr & ARM_FLAG_V) \ |
{ if (cpu->cd.arm.flags & ARM_F_V) \ |
159 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
160 |
void arm_instr_ ## n ## __vc(struct cpu *cpu, \ |
void arm_instr_ ## n ## __vc(struct cpu *cpu, \ |
161 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
162 |
{ if (!(cpu->cd.arm.cpsr & ARM_FLAG_V)) \ |
{ if (!(cpu->cd.arm.flags & ARM_F_V)) \ |
163 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
164 |
void arm_instr_ ## n ## __hi(struct cpu *cpu, \ |
void arm_instr_ ## n ## __hi(struct cpu *cpu, \ |
165 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
166 |
{ if (cpu->cd.arm.cpsr & ARM_FLAG_C && \ |
{ if (condition_hi[cpu->cd.arm.flags]) \ |
|
!(cpu->cd.arm.cpsr & ARM_FLAG_Z)) \ |
|
167 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
168 |
void arm_instr_ ## n ## __ls(struct cpu *cpu, \ |
void arm_instr_ ## n ## __ls(struct cpu *cpu, \ |
169 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
170 |
{ if (cpu->cd.arm.cpsr & ARM_FLAG_Z || \ |
{ if (!condition_hi[cpu->cd.arm.flags]) \ |
|
!(cpu->cd.arm.cpsr & ARM_FLAG_C)) \ |
|
171 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
172 |
void arm_instr_ ## n ## __ge(struct cpu *cpu, \ |
void arm_instr_ ## n ## __ge(struct cpu *cpu, \ |
173 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
174 |
{ if (((cpu->cd.arm.cpsr & ARM_FLAG_N)?1:0) == \ |
{ if (condition_ge[cpu->cd.arm.flags]) \ |
|
((cpu->cd.arm.cpsr & ARM_FLAG_V)?1:0)) \ |
|
175 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
176 |
void arm_instr_ ## n ## __lt(struct cpu *cpu, \ |
void arm_instr_ ## n ## __lt(struct cpu *cpu, \ |
177 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
178 |
{ if (((cpu->cd.arm.cpsr & ARM_FLAG_N)?1:0) != \ |
{ if (!condition_ge[cpu->cd.arm.flags]) \ |
|
((cpu->cd.arm.cpsr & ARM_FLAG_V)?1:0)) \ |
|
179 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
180 |
void arm_instr_ ## n ## __gt(struct cpu *cpu, \ |
void arm_instr_ ## n ## __gt(struct cpu *cpu, \ |
181 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
182 |
{ if (((cpu->cd.arm.cpsr & ARM_FLAG_N)?1:0) == \ |
{ if (condition_gt[cpu->cd.arm.flags]) \ |
|
((cpu->cd.arm.cpsr & ARM_FLAG_V)?1:0) && \ |
|
|
!(cpu->cd.arm.cpsr & ARM_FLAG_Z)) \ |
|
183 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
184 |
void arm_instr_ ## n ## __le(struct cpu *cpu, \ |
void arm_instr_ ## n ## __le(struct cpu *cpu, \ |
185 |
struct arm_instr_call *ic) \ |
struct arm_instr_call *ic) \ |
186 |
{ if (((cpu->cd.arm.cpsr & ARM_FLAG_N)?1:0) != \ |
{ if (!condition_gt[cpu->cd.arm.flags]) \ |
|
((cpu->cd.arm.cpsr & ARM_FLAG_V)?1:0) || \ |
|
|
(cpu->cd.arm.cpsr & ARM_FLAG_Z)) \ |
|
187 |
arm_instr_ ## n (cpu, ic); } \ |
arm_instr_ ## n (cpu, ic); } \ |
188 |
void (*arm_cond_instr_ ## n [16])(struct cpu *, \ |
void (*arm_cond_instr_ ## n [16])(struct cpu *, \ |
189 |
struct arm_instr_call *) = { \ |
struct arm_instr_call *) = { \ |
211 |
uint32_t low_pc; |
uint32_t low_pc; |
212 |
low_pc = ((size_t)ic - (size_t) |
low_pc = ((size_t)ic - (size_t) |
213 |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
214 |
cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
cpu->pc &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
215 |
<< ARM_INSTR_ALIGNMENT_SHIFT); |
<< ARM_INSTR_ALIGNMENT_SHIFT); |
216 |
cpu->cd.arm.r[ARM_PC] += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
cpu->pc += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
cpu->pc = cpu->cd.arm.r[ARM_PC]; |
|
217 |
|
|
218 |
fatal("Invalid ARM instruction: pc=0x%08x\n", (int)cpu->pc); |
fatal("Invalid ARM instruction: pc=0x%08x\n", (int)cpu->pc); |
219 |
|
|
231 |
*/ |
*/ |
232 |
X(b) |
X(b) |
233 |
{ |
{ |
234 |
uint32_t low_pc; |
cpu->pc = (uint32_t)((cpu->pc & 0xfffff000) + (int32_t)ic->arg[0]); |
|
|
|
|
/* Calculate new PC from this instruction + arg[0] */ |
|
|
low_pc = ((size_t)ic - (size_t) |
|
|
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
|
|
cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
|
|
<< ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
cpu->cd.arm.r[ARM_PC] += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
cpu->cd.arm.r[ARM_PC] += (int32_t)ic->arg[0]; |
|
|
cpu->pc = cpu->cd.arm.r[ARM_PC]; |
|
235 |
|
|
236 |
/* Find the new physical page and update the translation pointers: */ |
/* Find the new physical page and update the translation pointers: */ |
237 |
quick_pc_to_pointers(cpu); |
quick_pc_to_pointers(cpu); |
243 |
* b_samepage: Branch (to within the same translated page) |
* b_samepage: Branch (to within the same translated page) |
244 |
* |
* |
245 |
* arg[0] = pointer to new arm_instr_call |
* arg[0] = pointer to new arm_instr_call |
246 |
|
* arg[1] = pointer to the next instruction. |
247 |
|
* |
248 |
|
* NOTE: This instruction is manually inlined. |
249 |
*/ |
*/ |
250 |
X(b_samepage) |
X(b_samepage) { |
|
{ |
|
251 |
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic->arg[0]; |
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic->arg[0]; |
252 |
} |
} |
253 |
Y(b_samepage) |
X(b_samepage__eq) { |
254 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
255 |
|
ic->arg[cpu->cd.arm.flags & ARM_F_Z? 0 : 1]; |
256 |
|
} |
257 |
|
X(b_samepage__ne) { |
258 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
259 |
|
ic->arg[cpu->cd.arm.flags & ARM_F_Z? 1 : 0]; |
260 |
|
} |
261 |
|
X(b_samepage__cs) { |
262 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
263 |
|
ic->arg[cpu->cd.arm.flags & ARM_F_C? 0 : 1]; |
264 |
|
} |
265 |
|
X(b_samepage__cc) { |
266 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
267 |
|
ic->arg[cpu->cd.arm.flags & ARM_F_C? 1 : 0]; |
268 |
|
} |
269 |
|
X(b_samepage__mi) { |
270 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
271 |
|
ic->arg[cpu->cd.arm.flags & ARM_F_N? 0 : 1]; |
272 |
|
} |
273 |
|
X(b_samepage__pl) { |
274 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
275 |
|
ic->arg[cpu->cd.arm.flags & ARM_F_N? 1 : 0]; |
276 |
|
} |
277 |
|
X(b_samepage__vs) { |
278 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
279 |
|
ic->arg[cpu->cd.arm.flags & ARM_F_V? 0 : 1]; |
280 |
|
} |
281 |
|
X(b_samepage__vc) { |
282 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
283 |
|
ic->arg[cpu->cd.arm.flags & ARM_F_V? 1 : 0]; |
284 |
|
} |
285 |
|
X(b_samepage__hi) { |
286 |
|
cpu->cd.arm.next_ic = (condition_hi[cpu->cd.arm.flags])? |
287 |
|
(struct arm_instr_call *) ic->arg[0] : |
288 |
|
(struct arm_instr_call *) ic->arg[1]; |
289 |
|
} |
290 |
|
X(b_samepage__ls) { |
291 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
292 |
|
ic->arg[condition_hi[cpu->cd.arm.flags]]; |
293 |
|
} |
294 |
|
X(b_samepage__ge) { |
295 |
|
cpu->cd.arm.next_ic = (condition_ge[cpu->cd.arm.flags])? |
296 |
|
(struct arm_instr_call *) ic->arg[0] : |
297 |
|
(struct arm_instr_call *) ic->arg[1]; |
298 |
|
} |
299 |
|
X(b_samepage__lt) { |
300 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
301 |
|
ic->arg[condition_ge[cpu->cd.arm.flags]]; |
302 |
|
} |
303 |
|
X(b_samepage__gt) { |
304 |
|
cpu->cd.arm.next_ic = (condition_gt[cpu->cd.arm.flags])? |
305 |
|
(struct arm_instr_call *) ic->arg[0] : |
306 |
|
(struct arm_instr_call *) ic->arg[1]; |
307 |
|
} |
308 |
|
X(b_samepage__le) { |
309 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
310 |
|
ic->arg[condition_gt[cpu->cd.arm.flags]]; |
311 |
|
} |
312 |
|
void (*arm_cond_instr_b_samepage[16])(struct cpu *, |
313 |
|
struct arm_instr_call *) = { |
314 |
|
arm_instr_b_samepage__eq, arm_instr_b_samepage__ne, |
315 |
|
arm_instr_b_samepage__cs, arm_instr_b_samepage__cc, |
316 |
|
arm_instr_b_samepage__mi, arm_instr_b_samepage__pl, |
317 |
|
arm_instr_b_samepage__vs, arm_instr_b_samepage__vc, |
318 |
|
arm_instr_b_samepage__hi, arm_instr_b_samepage__ls, |
319 |
|
arm_instr_b_samepage__ge, arm_instr_b_samepage__lt, |
320 |
|
arm_instr_b_samepage__gt, arm_instr_b_samepage__le, |
321 |
|
arm_instr_b_samepage, arm_instr_nop }; |
322 |
|
|
323 |
|
|
324 |
/* |
/* |
328 |
*/ |
*/ |
329 |
X(bx) |
X(bx) |
330 |
{ |
{ |
331 |
cpu->pc = cpu->cd.arm.r[ARM_PC] = reg(ic->arg[0]); |
cpu->pc = reg(ic->arg[0]); |
332 |
if (cpu->pc & 1) { |
if (cpu->pc & 1) { |
333 |
fatal("thumb: TODO\n"); |
fatal("thumb: TODO\n"); |
334 |
exit(1); |
exit(1); |
348 |
*/ |
*/ |
349 |
X(bx_trace) |
X(bx_trace) |
350 |
{ |
{ |
351 |
cpu->pc = cpu->cd.arm.r[ARM_PC] = cpu->cd.arm.r[ARM_LR]; |
cpu->pc = cpu->cd.arm.r[ARM_LR]; |
352 |
if (cpu->pc & 1) { |
if (cpu->pc & 1) { |
353 |
fatal("thumb: TODO\n"); |
fatal("thumb: TODO\n"); |
354 |
exit(1); |
exit(1); |
370 |
*/ |
*/ |
371 |
X(bl) |
X(bl) |
372 |
{ |
{ |
373 |
uint32_t lr, low_pc; |
uint32_t pc = ((uint32_t)cpu->pc & 0xfffff000) + (int32_t)ic->arg[1]; |
374 |
|
cpu->cd.arm.r[ARM_LR] = pc + 4; |
|
/* Figure out what the return (link) address will be: */ |
|
|
low_pc = ((size_t)cpu->cd.arm.next_ic - (size_t) |
|
|
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
|
|
lr = cpu->cd.arm.r[ARM_PC]; |
|
|
lr &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
lr += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
|
|
|
/* Link: */ |
|
|
cpu->cd.arm.r[ARM_LR] = lr; |
|
375 |
|
|
376 |
/* Calculate new PC from this instruction + arg[0] */ |
/* Calculate new PC from this instruction + arg[0] */ |
377 |
cpu->pc = cpu->cd.arm.r[ARM_PC] = lr - 4 + (int32_t)ic->arg[0]; |
cpu->pc = pc + (int32_t)ic->arg[0]; |
378 |
|
|
379 |
/* Find the new physical page and update the translation pointers: */ |
/* Find the new physical page and update the translation pointers: */ |
380 |
quick_pc_to_pointers(cpu); |
quick_pc_to_pointers(cpu); |
389 |
*/ |
*/ |
390 |
X(blx) |
X(blx) |
391 |
{ |
{ |
392 |
uint32_t lr, low_pc; |
uint32_t lr = ((uint32_t)cpu->pc & 0xfffff000) + (int32_t)ic->arg[2]; |
|
|
|
|
/* Figure out what the return (link) address will be: */ |
|
|
low_pc = ((size_t)cpu->cd.arm.next_ic - (size_t) |
|
|
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
|
|
lr = cpu->cd.arm.r[ARM_PC]; |
|
|
lr &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
lr += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
|
|
|
/* Link: */ |
|
393 |
cpu->cd.arm.r[ARM_LR] = lr; |
cpu->cd.arm.r[ARM_LR] = lr; |
394 |
|
cpu->pc = reg(ic->arg[0]); |
|
cpu->pc = cpu->cd.arm.r[ARM_PC] = reg(ic->arg[0]); |
|
395 |
if (cpu->pc & 1) { |
if (cpu->pc & 1) { |
396 |
fatal("thumb: TODO\n"); |
fatal("thumb: TODO\n"); |
397 |
exit(1); |
exit(1); |
411 |
*/ |
*/ |
412 |
X(bl_trace) |
X(bl_trace) |
413 |
{ |
{ |
414 |
uint32_t lr, low_pc; |
uint32_t pc = ((uint32_t)cpu->pc & 0xfffff000) + (int32_t)ic->arg[1]; |
415 |
|
cpu->cd.arm.r[ARM_LR] = pc + 4; |
|
/* Figure out what the return (link) address will be: */ |
|
|
low_pc = ((size_t)cpu->cd.arm.next_ic - (size_t) |
|
|
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
|
|
lr = cpu->cd.arm.r[ARM_PC]; |
|
|
lr &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
lr += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
|
|
|
/* Link: */ |
|
|
cpu->cd.arm.r[ARM_LR] = lr; |
|
416 |
|
|
417 |
/* Calculate new PC from this instruction + arg[0] */ |
/* Calculate new PC from this instruction + arg[0] */ |
418 |
cpu->pc = cpu->cd.arm.r[ARM_PC] = lr - 4 + (int32_t)ic->arg[0]; |
cpu->pc = pc + (int32_t)ic->arg[0]; |
419 |
|
|
420 |
cpu_functioncall_trace(cpu, cpu->pc); |
cpu_functioncall_trace(cpu, cpu->pc); |
421 |
|
|
432 |
*/ |
*/ |
433 |
X(bl_samepage) |
X(bl_samepage) |
434 |
{ |
{ |
435 |
uint32_t lr, low_pc; |
cpu->cd.arm.r[ARM_LR] = |
436 |
|
((uint32_t)cpu->pc & 0xfffff000) + (int32_t)ic->arg[2]; |
|
/* Figure out what the return (link) address will be: */ |
|
|
low_pc = ((size_t)cpu->cd.arm.next_ic - (size_t) |
|
|
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
|
|
lr = cpu->cd.arm.r[ARM_PC]; |
|
|
lr &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
lr += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
|
|
|
/* Link: */ |
|
|
cpu->cd.arm.r[ARM_LR] = lr; |
|
|
|
|
|
/* Branch: */ |
|
437 |
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic->arg[0]; |
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic->arg[0]; |
438 |
} |
} |
439 |
Y(bl_samepage) |
Y(bl_samepage) |
446 |
*/ |
*/ |
447 |
X(bl_samepage_trace) |
X(bl_samepage_trace) |
448 |
{ |
{ |
449 |
uint32_t tmp_pc, lr, low_pc; |
uint32_t low_pc, lr = (cpu->pc & 0xfffff000) + ic->arg[2]; |
450 |
|
|
451 |
/* Figure out what the return (link) address will be: */ |
/* Link and branch: */ |
|
low_pc = ((size_t)cpu->cd.arm.next_ic - (size_t) |
|
|
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
|
|
lr = cpu->cd.arm.r[ARM_PC]; |
|
|
lr &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
lr += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
|
|
|
/* Link: */ |
|
452 |
cpu->cd.arm.r[ARM_LR] = lr; |
cpu->cd.arm.r[ARM_LR] = lr; |
|
|
|
|
/* Branch: */ |
|
453 |
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic->arg[0]; |
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic->arg[0]; |
454 |
|
|
455 |
|
/* Synchronize the program counter: */ |
456 |
low_pc = ((size_t)cpu->cd.arm.next_ic - (size_t) |
low_pc = ((size_t)cpu->cd.arm.next_ic - (size_t) |
457 |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
458 |
tmp_pc = cpu->cd.arm.r[ARM_PC]; |
cpu->pc &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
|
tmp_pc &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
|
459 |
<< ARM_INSTR_ALIGNMENT_SHIFT); |
<< ARM_INSTR_ALIGNMENT_SHIFT); |
460 |
tmp_pc += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
cpu->pc += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
461 |
cpu_functioncall_trace(cpu, tmp_pc); |
|
462 |
|
/* ... and show trace: */ |
463 |
|
cpu_functioncall_trace(cpu, cpu->pc); |
464 |
} |
} |
465 |
Y(bl_samepage_trace) |
Y(bl_samepage_trace) |
466 |
|
|
467 |
|
|
468 |
#include "cpu_arm_instr_misc.c" |
/* |
469 |
|
* clz: Count leading zeroes. |
470 |
|
* |
471 |
|
* arg[0] = ptr to rm |
472 |
|
* arg[1] = ptr to rd |
473 |
|
*/ |
474 |
|
X(clz) |
475 |
|
{ |
476 |
|
uint32_t rm = reg(ic->arg[0]); |
477 |
|
int i = 32, n = 0, j; |
478 |
|
while (i>0) { |
479 |
|
if (rm & 0xff000000) { |
480 |
|
for (j=0; j<8; j++) { |
481 |
|
if (rm & 0x80000000) |
482 |
|
break; |
483 |
|
n ++; |
484 |
|
rm <<= 1; |
485 |
|
} |
486 |
|
break; |
487 |
|
} else { |
488 |
|
rm <<= 8; |
489 |
|
i -= 8; |
490 |
|
n += 8; |
491 |
|
} |
492 |
|
} |
493 |
|
reg(ic->arg[1]) = n; |
494 |
|
} |
495 |
|
Y(clz) |
496 |
|
|
497 |
|
|
498 |
/* |
/* |
511 |
{ |
{ |
512 |
uint32_t result; |
uint32_t result; |
513 |
result = reg(ic->arg[1]) * reg(ic->arg[2]); |
result = reg(ic->arg[1]) * reg(ic->arg[2]); |
514 |
cpu->cd.arm.cpsr &= ~(ARM_FLAG_Z | ARM_FLAG_N); |
cpu->cd.arm.flags &= ~(ARM_F_Z | ARM_F_N); |
515 |
if (result == 0) |
if (result == 0) |
516 |
cpu->cd.arm.cpsr |= ARM_FLAG_Z; |
cpu->cd.arm.flags |= ARM_F_Z; |
517 |
if (result & 0x80000000) |
if (result & 0x80000000) |
518 |
cpu->cd.arm.cpsr |= ARM_FLAG_N; |
cpu->cd.arm.flags |= ARM_F_N; |
519 |
reg(ic->arg[0]) = result; |
reg(ic->arg[0]) = result; |
520 |
} |
} |
521 |
Y(muls) |
Y(muls) |
546 |
rs = (iw >> 8) & 15; rm = iw & 15; |
rs = (iw >> 8) & 15; rm = iw & 15; |
547 |
cpu->cd.arm.r[rd] = cpu->cd.arm.r[rm] * cpu->cd.arm.r[rs] |
cpu->cd.arm.r[rd] = cpu->cd.arm.r[rm] * cpu->cd.arm.r[rs] |
548 |
+ cpu->cd.arm.r[rn]; |
+ cpu->cd.arm.r[rn]; |
549 |
cpu->cd.arm.cpsr &= ~(ARM_FLAG_Z | ARM_FLAG_N); |
cpu->cd.arm.flags &= ~(ARM_F_Z | ARM_F_N); |
550 |
if (cpu->cd.arm.r[rd] == 0) |
if (cpu->cd.arm.r[rd] == 0) |
551 |
cpu->cd.arm.cpsr |= ARM_FLAG_Z; |
cpu->cd.arm.flags |= ARM_F_Z; |
552 |
if (cpu->cd.arm.r[rd] & 0x80000000) |
if (cpu->cd.arm.r[rd] & 0x80000000) |
553 |
cpu->cd.arm.cpsr |= ARM_FLAG_N; |
cpu->cd.arm.flags |= ARM_F_N; |
554 |
} |
} |
555 |
Y(mlas) |
Y(mlas) |
556 |
|
|
565 |
/* xxxx0000 1UAShhhh llllssss 1001mmmm */ |
/* xxxx0000 1UAShhhh llllssss 1001mmmm */ |
566 |
uint32_t iw; uint64_t tmp; int u_bit, a_bit; |
uint32_t iw; uint64_t tmp; int u_bit, a_bit; |
567 |
iw = ic->arg[0]; |
iw = ic->arg[0]; |
568 |
u_bit = (iw >> 22) & 1; a_bit = (iw >> 21) & 1; |
u_bit = iw & 0x00400000; a_bit = iw & 0x00200000; |
569 |
tmp = cpu->cd.arm.r[iw & 15]; |
tmp = cpu->cd.arm.r[iw & 15]; |
570 |
if (u_bit) |
if (u_bit) |
571 |
tmp = (int64_t)(int32_t)tmp |
tmp = (int64_t)(int32_t)tmp |
600 |
|
|
601 |
|
|
602 |
/* |
/* |
603 |
|
* mov_reg_pc: Move the PC register to a normal register. |
604 |
|
* |
605 |
|
* arg[0] = offset compared to start of current page + 8 |
606 |
|
* arg[1] = ptr to destination register |
607 |
|
*/ |
608 |
|
X(mov_reg_pc) |
609 |
|
{ |
610 |
|
reg(ic->arg[1]) = ((uint32_t)cpu->pc&0xfffff000) + (int32_t)ic->arg[0]; |
611 |
|
} |
612 |
|
Y(mov_reg_pc) |
613 |
|
|
614 |
|
|
615 |
|
/* |
616 |
* ret_trace: "mov pc,lr" with trace enabled |
* ret_trace: "mov pc,lr" with trace enabled |
617 |
* ret: "mov pc,lr" without trace enabled |
* ret: "mov pc,lr" without trace enabled |
618 |
* |
* |
621 |
X(ret_trace) |
X(ret_trace) |
622 |
{ |
{ |
623 |
uint32_t old_pc, mask_within_page; |
uint32_t old_pc, mask_within_page; |
624 |
old_pc = cpu->cd.arm.r[ARM_PC]; |
old_pc = cpu->pc; |
625 |
mask_within_page = ((ARM_IC_ENTRIES_PER_PAGE-1) |
mask_within_page = ((ARM_IC_ENTRIES_PER_PAGE-1) |
626 |
<< ARM_INSTR_ALIGNMENT_SHIFT) | |
<< ARM_INSTR_ALIGNMENT_SHIFT) | |
627 |
((1 << ARM_INSTR_ALIGNMENT_SHIFT) - 1); |
((1 << ARM_INSTR_ALIGNMENT_SHIFT) - 1); |
628 |
|
|
629 |
/* Update the PC register: */ |
/* Update the PC register: */ |
630 |
cpu->pc = cpu->cd.arm.r[ARM_PC] = cpu->cd.arm.r[ARM_LR]; |
cpu->pc = cpu->cd.arm.r[ARM_LR]; |
631 |
|
|
632 |
cpu_functioncall_trace_return(cpu); |
cpu_functioncall_trace_return(cpu); |
633 |
|
|
646 |
Y(ret_trace) |
Y(ret_trace) |
647 |
X(ret) |
X(ret) |
648 |
{ |
{ |
649 |
cpu->pc = cpu->cd.arm.r[ARM_PC] = cpu->cd.arm.r[ARM_LR]; |
cpu->pc = cpu->cd.arm.r[ARM_LR]; |
650 |
quick_pc_to_pointers(cpu); |
quick_pc_to_pointers(cpu); |
651 |
} |
} |
652 |
Y(ret) |
Y(ret) |
670 |
(ic->arg[0] & ARM_FLAG_MODE)); |
(ic->arg[0] & ARM_FLAG_MODE)); |
671 |
uint32_t new_value = ic->arg[0]; |
uint32_t new_value = ic->arg[0]; |
672 |
|
|
673 |
|
cpu->cd.arm.cpsr &= 0x0fffffff; |
674 |
|
cpu->cd.arm.cpsr |= (cpu->cd.arm.flags << 28); |
675 |
|
|
676 |
if (switch_register_banks) |
if (switch_register_banks) |
677 |
arm_save_register_bank(cpu); |
arm_save_register_bank(cpu); |
678 |
|
|
679 |
cpu->cd.arm.cpsr &= ~mask; |
cpu->cd.arm.cpsr &= ~mask; |
680 |
cpu->cd.arm.cpsr |= (new_value & mask); |
cpu->cd.arm.cpsr |= (new_value & mask); |
681 |
|
|
682 |
|
cpu->cd.arm.flags = cpu->cd.arm.cpsr >> 28; |
683 |
|
|
684 |
if (switch_register_banks) |
if (switch_register_banks) |
685 |
arm_load_register_bank(cpu); |
arm_load_register_bank(cpu); |
686 |
} |
} |
722 |
/* Synchronize the program counter: */ |
/* Synchronize the program counter: */ |
723 |
uint32_t old_pc, low_pc = ((size_t)ic - (size_t) |
uint32_t old_pc, low_pc = ((size_t)ic - (size_t) |
724 |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
725 |
cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
cpu->pc &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
726 |
<< ARM_INSTR_ALIGNMENT_SHIFT); |
cpu->pc += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
727 |
cpu->cd.arm.r[ARM_PC] += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
old_pc = cpu->pc; |
728 |
old_pc = cpu->pc = cpu->cd.arm.r[ARM_PC]; |
printf("msr_spsr: old pc = 0x%08x\n", old_pc); |
|
printf("msr_spsr: old pc = 0x%08x\n", old_pc); |
|
729 |
} |
} |
730 |
exit(1); |
exit(1); |
731 |
} |
} |
746 |
*/ |
*/ |
747 |
X(mrs) |
X(mrs) |
748 |
{ |
{ |
749 |
|
cpu->cd.arm.cpsr &= 0x0fffffff; |
750 |
|
cpu->cd.arm.cpsr |= (cpu->cd.arm.flags << 28); |
751 |
reg(ic->arg[0]) = cpu->cd.arm.cpsr; |
reg(ic->arg[0]) = cpu->cd.arm.cpsr; |
752 |
} |
} |
753 |
Y(mrs) |
Y(mrs) |
754 |
|
|
755 |
|
|
756 |
/* |
/* |
757 |
* mrs: Move from status/flag register to a normal register. |
* mrs: Move from saved status/flag register to a normal register. |
758 |
* |
* |
759 |
* arg[0] = pointer to rd |
* arg[0] = pointer to rd |
760 |
*/ |
*/ |
783 |
* arg[0] = copy of the instruction word |
* arg[0] = copy of the instruction word |
784 |
*/ |
*/ |
785 |
X(mcr_mrc) { |
X(mcr_mrc) { |
786 |
uint32_t low_pc; |
uint32_t low_pc = ((size_t)ic - (size_t) |
|
low_pc = ((size_t)ic - (size_t) |
|
787 |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
788 |
cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
cpu->pc &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
789 |
<< ARM_INSTR_ALIGNMENT_SHIFT); |
cpu->pc += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
cpu->cd.arm.r[ARM_PC] += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
cpu->pc = cpu->cd.arm.r[ARM_PC]; |
|
790 |
arm_mcr_mrc(cpu, ic->arg[0]); |
arm_mcr_mrc(cpu, ic->arg[0]); |
791 |
} |
} |
792 |
Y(mcr_mrc) |
Y(mcr_mrc) |
793 |
X(cdp) { |
X(cdp) { |
794 |
uint32_t low_pc; |
uint32_t low_pc = ((size_t)ic - (size_t) |
|
low_pc = ((size_t)ic - (size_t) |
|
795 |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
796 |
cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
cpu->pc &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
797 |
<< ARM_INSTR_ALIGNMENT_SHIFT); |
cpu->pc += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
cpu->cd.arm.r[ARM_PC] += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
cpu->pc = cpu->cd.arm.r[ARM_PC]; |
|
798 |
arm_cdp(cpu, ic->arg[0]); |
arm_cdp(cpu, ic->arg[0]); |
799 |
} |
} |
800 |
Y(cdp) |
Y(cdp) |
805 |
*/ |
*/ |
806 |
X(openfirmware) |
X(openfirmware) |
807 |
{ |
{ |
808 |
|
/* TODO: sync pc? */ |
809 |
of_emul(cpu); |
of_emul(cpu); |
810 |
cpu->pc = cpu->cd.arm.r[ARM_PC] = cpu->cd.arm.r[ARM_LR]; |
cpu->pc = cpu->cd.arm.r[ARM_LR]; |
811 |
if (cpu->machine->show_trace_tree) |
if (cpu->machine->show_trace_tree) |
812 |
cpu_functioncall_trace_return(cpu); |
cpu_functioncall_trace_return(cpu); |
813 |
quick_pc_to_pointers(cpu); |
quick_pc_to_pointers(cpu); |
815 |
|
|
816 |
|
|
817 |
/* |
/* |
818 |
|
* reboot: |
819 |
|
*/ |
820 |
|
X(reboot) |
821 |
|
{ |
822 |
|
cpu->running = 0; |
823 |
|
cpu->running_translated = 0; |
824 |
|
cpu->n_translated_instrs --; |
825 |
|
cpu->cd.arm.next_ic = ¬hing_call; |
826 |
|
} |
827 |
|
|
828 |
|
|
829 |
|
/* |
830 |
* swi_useremul: Syscall. |
* swi_useremul: Syscall. |
831 |
* |
* |
832 |
* arg[0] = swi number |
* arg[0] = swi number |
836 |
/* Synchronize the program counter: */ |
/* Synchronize the program counter: */ |
837 |
uint32_t old_pc, low_pc = ((size_t)ic - (size_t) |
uint32_t old_pc, low_pc = ((size_t)ic - (size_t) |
838 |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
839 |
cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
cpu->pc &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
840 |
<< ARM_INSTR_ALIGNMENT_SHIFT); |
<< ARM_INSTR_ALIGNMENT_SHIFT); |
841 |
cpu->cd.arm.r[ARM_PC] += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
cpu->pc += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
842 |
old_pc = cpu->pc = cpu->cd.arm.r[ARM_PC]; |
old_pc = cpu->pc; |
843 |
|
|
844 |
useremul_syscall(cpu, ic->arg[0]); |
useremul_syscall(cpu, ic->arg[0]); |
845 |
|
|
861 |
*/ |
*/ |
862 |
X(swi) |
X(swi) |
863 |
{ |
{ |
864 |
/* Synchronize the program counter: */ |
/* Synchronize the program counter first: */ |
865 |
uint32_t low_pc = ((size_t)ic - (size_t) |
cpu->pc &= 0xfffff000; |
866 |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
cpu->pc += ic->arg[0]; |
|
cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
|
|
<< ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
cpu->cd.arm.r[ARM_PC] += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
cpu->pc = cpu->cd.arm.r[ARM_PC]; |
|
|
|
|
867 |
arm_exception(cpu, ARM_EXCEPTION_SWI); |
arm_exception(cpu, ARM_EXCEPTION_SWI); |
868 |
} |
} |
869 |
Y(swi) |
Y(swi) |
870 |
|
|
871 |
|
|
872 |
/* |
/* |
873 |
|
* und: Undefined instruction. |
874 |
|
*/ |
875 |
|
X(und) |
876 |
|
{ |
877 |
|
/* Synchronize the program counter first: */ |
878 |
|
cpu->pc &= 0xfffff000; |
879 |
|
cpu->pc += ic->arg[0]; |
880 |
|
arm_exception(cpu, ARM_EXCEPTION_UND); |
881 |
|
} |
882 |
|
Y(und) |
883 |
|
|
884 |
|
|
885 |
|
/* |
886 |
* swp, swpb: Swap (word or byte). |
* swp, swpb: Swap (word or byte). |
887 |
* |
* |
888 |
* arg[0] = ptr to rd |
* arg[0] = ptr to rd |
893 |
{ |
{ |
894 |
uint32_t addr = reg(ic->arg[2]), data, data2; |
uint32_t addr = reg(ic->arg[2]), data, data2; |
895 |
unsigned char d[4]; |
unsigned char d[4]; |
896 |
|
|
897 |
/* Synchronize the program counter: */ |
/* Synchronize the program counter: */ |
898 |
uint32_t low_pc = ((size_t)ic - (size_t) |
uint32_t low_pc = ((size_t)ic - (size_t) |
899 |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
900 |
cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
cpu->pc &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
901 |
<< ARM_INSTR_ALIGNMENT_SHIFT); |
cpu->pc += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
cpu->cd.arm.r[ARM_PC] += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
cpu->pc = cpu->cd.arm.r[ARM_PC]; |
|
902 |
|
|
903 |
if (!cpu->memory_rw(cpu, cpu->mem, addr, d, sizeof(d), MEM_READ, |
if (!cpu->memory_rw(cpu, cpu->mem, addr, d, sizeof(d), MEM_READ, |
904 |
CACHE_DATA)) { |
CACHE_DATA)) { |
920 |
{ |
{ |
921 |
uint32_t addr = reg(ic->arg[2]), data; |
uint32_t addr = reg(ic->arg[2]), data; |
922 |
unsigned char d[1]; |
unsigned char d[1]; |
923 |
|
|
924 |
/* Synchronize the program counter: */ |
/* Synchronize the program counter: */ |
925 |
uint32_t low_pc = ((size_t)ic - (size_t) |
uint32_t low_pc = ((size_t)ic - (size_t) |
926 |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
927 |
cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
cpu->pc &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
928 |
<< ARM_INSTR_ALIGNMENT_SHIFT); |
cpu->pc += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
cpu->cd.arm.r[ARM_PC] += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
cpu->pc = cpu->cd.arm.r[ARM_PC]; |
|
929 |
|
|
930 |
if (!cpu->memory_rw(cpu, cpu->mem, addr, d, sizeof(d), MEM_READ, |
if (!cpu->memory_rw(cpu, cpu->mem, addr, d, sizeof(d), MEM_READ, |
931 |
CACHE_DATA)) { |
CACHE_DATA)) { |
946 |
|
|
947 |
extern void (*arm_load_store_instr[1024])(struct cpu *, |
extern void (*arm_load_store_instr[1024])(struct cpu *, |
948 |
struct arm_instr_call *); |
struct arm_instr_call *); |
949 |
|
X(store_w1_word_u1_p0_imm); |
950 |
X(store_w0_byte_u1_p0_imm); |
X(store_w0_byte_u1_p0_imm); |
951 |
X(store_w0_word_u1_p0_imm); |
X(store_w0_word_u1_p0_imm); |
952 |
|
X(store_w0_word_u1_p1_imm); |
953 |
|
X(load_w1_word_u1_p0_imm); |
954 |
X(load_w0_word_u1_p0_imm); |
X(load_w0_word_u1_p0_imm); |
955 |
X(load_w0_byte_u1_p1_imm); |
X(load_w0_byte_u1_p1_imm); |
956 |
X(load_w0_byte_u1_p1_reg); |
X(load_w0_byte_u1_p1_reg); |
957 |
|
X(load_w1_byte_u1_p1_imm); |
958 |
|
|
959 |
extern void (*arm_load_store_instr_pc[1024])(struct cpu *, |
extern void (*arm_load_store_instr_pc[1024])(struct cpu *, |
960 |
struct arm_instr_call *); |
struct arm_instr_call *); |
966 |
struct arm_instr_call *); |
struct arm_instr_call *); |
967 |
|
|
968 |
extern uint32_t (*arm_r[8192])(struct cpu *, struct arm_instr_call *); |
extern uint32_t (*arm_r[8192])(struct cpu *, struct arm_instr_call *); |
969 |
|
extern void arm_r_r3_t0_c0(void); |
970 |
|
|
971 |
extern void (*arm_dpi_instr[2 * 2 * 2 * 16 * 16])(struct cpu *, |
extern void (*arm_dpi_instr[2 * 2 * 2 * 16 * 16])(struct cpu *, |
972 |
struct arm_instr_call *); |
struct arm_instr_call *); |
973 |
|
extern void (*arm_dpi_instr_regshort[2 * 16 * 16])(struct cpu *, |
974 |
|
struct arm_instr_call *); |
975 |
X(cmps); |
X(cmps); |
976 |
|
X(teqs); |
977 |
|
X(tsts); |
978 |
X(sub); |
X(sub); |
979 |
X(add); |
X(add); |
980 |
X(subs); |
X(subs); |
981 |
|
X(eor_regshort); |
982 |
|
X(cmps_regshort); |
983 |
|
|
984 |
|
|
985 |
|
#include "cpu_arm_instr_misc.c" |
986 |
|
|
987 |
|
|
988 |
/* |
/* |
989 |
* bdt_load: Block Data Transfer, Load |
* bdt_load: Block Data Transfer, Load |
1013 |
/* Synchronize the program counter: */ |
/* Synchronize the program counter: */ |
1014 |
low_pc = ((size_t)ic - (size_t) |
low_pc = ((size_t)ic - (size_t) |
1015 |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
1016 |
cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << |
cpu->pc &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
1017 |
ARM_INSTR_ALIGNMENT_SHIFT); |
cpu->pc += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
cpu->cd.arm.r[ARM_PC] += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
cpu->pc = cpu->cd.arm.r[ARM_PC]; |
|
1018 |
|
|
1019 |
if (s_bit) { |
if (s_bit) { |
1020 |
/* Load to USR registers: */ |
/* Load to USR registers: */ |
1150 |
arm_save_register_bank(cpu); |
arm_save_register_bank(cpu); |
1151 |
|
|
1152 |
cpu->cd.arm.cpsr = new_cpsr; |
cpu->cd.arm.cpsr = new_cpsr; |
1153 |
|
cpu->cd.arm.flags = cpu->cd.arm.cpsr >> 28; |
1154 |
|
|
1155 |
if (switch_register_banks) |
if (switch_register_banks) |
1156 |
arm_load_register_bank(cpu); |
arm_load_register_bank(cpu); |
1158 |
|
|
1159 |
/* NOTE: Special case: Loading the PC */ |
/* NOTE: Special case: Loading the PC */ |
1160 |
if (iw & 0x8000) { |
if (iw & 0x8000) { |
1161 |
cpu->cd.arm.r[ARM_PC] &= ~3; |
cpu->pc = cpu->cd.arm.r[ARM_PC] & 0xfffffffc; |
|
cpu->pc = cpu->cd.arm.r[ARM_PC]; |
|
1162 |
if (cpu->machine->show_trace_tree) |
if (cpu->machine->show_trace_tree) |
1163 |
cpu_functioncall_trace_return(cpu); |
cpu_functioncall_trace_return(cpu); |
1164 |
/* TODO: There is no need to update the |
/* TODO: There is no need to update the |
1199 |
/* Synchronize the program counter: */ |
/* Synchronize the program counter: */ |
1200 |
low_pc = ((size_t)ic - (size_t) |
low_pc = ((size_t)ic - (size_t) |
1201 |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
cpu->cd.arm.cur_ic_page) / sizeof(struct arm_instr_call); |
1202 |
cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << |
cpu->pc &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
1203 |
ARM_INSTR_ALIGNMENT_SHIFT); |
cpu->pc += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
cpu->cd.arm.r[ARM_PC] += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
cpu->pc = cpu->cd.arm.r[ARM_PC]; |
|
1204 |
|
|
1205 |
for (i=(u_bit? 0 : 15); i>=0 && i<=15; i+=(u_bit? 1 : -1)) { |
for (i=(u_bit? 0 : 15); i>=0 && i<=15; i+=(u_bit? 1 : -1)) { |
1206 |
if (!((iw >> i) & 1)) { |
if (!((iw >> i) & 1)) { |
1229 |
} |
} |
1230 |
} |
} |
1231 |
|
|
1232 |
|
/* NOTE/TODO: 8 vs 12 on some ARMs */ |
1233 |
if (i == ARM_PC) |
if (i == ARM_PC) |
1234 |
value += 12; /* NOTE/TODO: 8 on some ARMs */ |
value = cpu->pc + 12; |
1235 |
|
|
1236 |
if (p_bit) { |
if (p_bit) { |
1237 |
if (u_bit) |
if (u_bit) |
1289 |
|
|
1290 |
|
|
1291 |
/* Various load/store multiple instructions: */ |
/* Various load/store multiple instructions: */ |
1292 |
#include "tmp_arm_multi.c" |
uint32_t *multi_opcode[256]; |
1293 |
|
void (**multi_opcode_f[256])(struct cpu *, struct arm_instr_call *); |
1294 |
|
X(multi_0x08b15018); |
1295 |
|
X(multi_0x08ac000c__ge); |
1296 |
|
X(multi_0x08a05018); |
1297 |
|
|
1298 |
|
|
1299 |
/*****************************************************************************/ |
/*****************************************************************************/ |
1300 |
|
|
1301 |
|
|
1302 |
/* |
/* |
|
* fill_loop_test: |
|
|
* |
|
|
* A byte-fill loop. Fills at most one page at a time. If the page was not |
|
|
* in the host_store table, then the original sequence (beginning with |
|
|
* cmps rZ,#0) is executed instead. |
|
|
* |
|
|
* L: cmps rZ,#0 ic[0] |
|
|
* strb rX,[rY],#1 ic[1] |
|
|
* sub rZ,rZ,#1 ic[2] |
|
|
* bgt L ic[3] |
|
|
* |
|
|
* A maximum of 4 pages are filled before returning. |
|
|
*/ |
|
|
X(fill_loop_test) |
|
|
{ |
|
|
int max_pages_left = 4; |
|
|
uint32_t addr, a, n, ofs, maxlen; |
|
|
uint32_t *rzp = (uint32_t *)(size_t)ic[0].arg[0]; |
|
|
unsigned char *page; |
|
|
|
|
|
restart_loop: |
|
|
addr = reg(ic[1].arg[0]); |
|
|
page = cpu->cd.arm.host_store[addr >> 12]; |
|
|
if (page == NULL) { |
|
|
instr(cmps)(cpu, ic); |
|
|
return; |
|
|
} |
|
|
|
|
|
n = reg(rzp) + 1; |
|
|
ofs = addr & 0xfff; |
|
|
maxlen = 4096 - ofs; |
|
|
if (n > maxlen) |
|
|
n = maxlen; |
|
|
|
|
|
/* printf("x = %x, n = %i\n", reg(ic[1].arg[2]), n); */ |
|
|
memset(page + ofs, reg(ic[1].arg[2]), n); |
|
|
|
|
|
reg(ic[1].arg[0]) = addr + n; |
|
|
|
|
|
reg(rzp) -= n; |
|
|
cpu->n_translated_instrs += (4 * n); |
|
|
|
|
|
a = reg(rzp); |
|
|
|
|
|
cpu->cd.arm.cpsr &= |
|
|
~(ARM_FLAG_Z | ARM_FLAG_N | ARM_FLAG_V | ARM_FLAG_C); |
|
|
if (a != 0) |
|
|
cpu->cd.arm.cpsr |= ARM_FLAG_C; |
|
|
else |
|
|
cpu->cd.arm.cpsr |= ARM_FLAG_Z; |
|
|
if ((int32_t)a < 0) |
|
|
cpu->cd.arm.cpsr |= ARM_FLAG_N; |
|
|
|
|
|
if (max_pages_left-- > 0 && (int32_t)a > 0) |
|
|
goto restart_loop; |
|
|
|
|
|
cpu->n_translated_instrs --; |
|
|
|
|
|
if ((int32_t)a > 0) |
|
|
cpu->cd.arm.next_ic = ic; |
|
|
else |
|
|
cpu->cd.arm.next_ic = &ic[4]; |
|
|
} |
|
|
|
|
|
|
|
|
/* |
|
|
* fill_loop_test2: |
|
|
* |
|
|
* A word-fill loop. Fills at most one page at a time. If the page was not |
|
|
* in the host_store table, then the original sequence (beginning with |
|
|
* cmps rZ,#0) is executed instead. |
|
|
* |
|
|
* L: str rX,[rY],#4 ic[0] |
|
|
* subs rZ,rZ,#4 ic[1] |
|
|
* bgt L ic[2] |
|
|
* |
|
|
* A maximum of 5 pages are filled before returning. |
|
|
*/ |
|
|
X(fill_loop_test2) |
|
|
{ |
|
|
int max_pages_left = 5; |
|
|
unsigned char x1,x2,x3,x4; |
|
|
uint32_t addr, a, n, x, ofs, maxlen; |
|
|
uint32_t *rzp = (uint32_t *)(size_t)ic[1].arg[0]; |
|
|
unsigned char *page; |
|
|
|
|
|
x = reg(ic[0].arg[2]); |
|
|
x1 = x; x2 = x >> 8; x3 = x >> 16; x4 = x >> 24; |
|
|
if (x1 != x2 || x1 != x3 || x1 != x4) { |
|
|
instr(store_w0_word_u1_p0_imm)(cpu, ic); |
|
|
return; |
|
|
} |
|
|
|
|
|
restart_loop: |
|
|
addr = reg(ic[0].arg[0]); |
|
|
page = cpu->cd.arm.host_store[addr >> 12]; |
|
|
if (page == NULL || (addr & 3) != 0) { |
|
|
instr(store_w0_word_u1_p0_imm)(cpu, ic); |
|
|
return; |
|
|
} |
|
|
|
|
|
/* printf("addr = 0x%08x, page = %p\n", addr, page); |
|
|
printf("*rzp = 0x%08x\n", reg(rzp)); */ |
|
|
|
|
|
n = reg(rzp) / 4; |
|
|
if (n == 0) |
|
|
n++; |
|
|
/* n = nr of _words_ */ |
|
|
ofs = addr & 0xfff; |
|
|
maxlen = 4096 - ofs; |
|
|
if (n*4 > maxlen) |
|
|
n = maxlen / 4; |
|
|
|
|
|
/* printf("x = %x, n = %i\n", x1, n); */ |
|
|
memset(page + ofs, x1, n * 4); |
|
|
|
|
|
reg(ic[0].arg[0]) = addr + n * 4; |
|
|
|
|
|
reg(rzp) -= (n * 4); |
|
|
cpu->n_translated_instrs += (3 * n); |
|
|
|
|
|
a = reg(rzp); |
|
|
|
|
|
cpu->cd.arm.cpsr &= |
|
|
~(ARM_FLAG_Z | ARM_FLAG_N | ARM_FLAG_V | ARM_FLAG_C); |
|
|
if (a != 0) |
|
|
cpu->cd.arm.cpsr |= ARM_FLAG_C; |
|
|
else |
|
|
cpu->cd.arm.cpsr |= ARM_FLAG_Z; |
|
|
if ((int32_t)a < 0) |
|
|
cpu->cd.arm.cpsr |= ARM_FLAG_N; |
|
|
|
|
|
if (max_pages_left-- > 0 && (int32_t)a > 0) |
|
|
goto restart_loop; |
|
|
|
|
|
cpu->n_translated_instrs --; |
|
|
|
|
|
if ((int32_t)a > 0) |
|
|
cpu->cd.arm.next_ic = ic; |
|
|
else |
|
|
cpu->cd.arm.next_ic = &ic[3]; |
|
|
} |
|
|
|
|
|
|
|
|
/* |
|
1303 |
* netbsd_memset: |
* netbsd_memset: |
1304 |
* |
* |
1305 |
* The core of a NetBSD/arm memset. |
* The core of a NetBSD/arm memset. |
1319 |
|
|
1320 |
instr(subs)(cpu, ic); |
instr(subs)(cpu, ic); |
1321 |
|
|
1322 |
if (((cpu->cd.arm.cpsr & ARM_FLAG_N)?1:0) != |
if (((cpu->cd.arm.flags & ARM_F_N)?1:0) != |
1323 |
((cpu->cd.arm.cpsr & ARM_FLAG_V)?1:0)) { |
((cpu->cd.arm.flags & ARM_F_V)?1:0)) { |
1324 |
cpu->n_translated_instrs += 16; |
cpu->n_translated_instrs += 16; |
1325 |
/* Skip the store multiples: */ |
/* Skip the store multiples: */ |
1326 |
cpu->cd.arm.next_ic = &ic[17]; |
cpu->cd.arm.next_ic = &ic[17]; |
1349 |
|
|
1350 |
/* Branch back if greater: */ |
/* Branch back if greater: */ |
1351 |
cpu->n_translated_instrs += 1; |
cpu->n_translated_instrs += 1; |
1352 |
} while (((cpu->cd.arm.cpsr & ARM_FLAG_N)?1:0) == |
} while (((cpu->cd.arm.flags & ARM_F_N)?1:0) == |
1353 |
((cpu->cd.arm.cpsr & ARM_FLAG_V)?1:0) && |
((cpu->cd.arm.flags & ARM_F_V)?1:0) && |
1354 |
!(cpu->cd.arm.cpsr & ARM_FLAG_Z)); |
!(cpu->cd.arm.flags & ARM_F_Z)); |
1355 |
|
|
1356 |
/* Continue at the instruction after the bgt: */ |
/* Continue at the instruction after the bgt: */ |
1357 |
cpu->cd.arm.next_ic = &ic[18]; |
cpu->cd.arm.next_ic = &ic[18]; |
1409 |
|
|
1410 |
/* Loop while greater or equal: */ |
/* Loop while greater or equal: */ |
1411 |
cpu->n_translated_instrs ++; |
cpu->n_translated_instrs ++; |
1412 |
} while (((cpu->cd.arm.cpsr & ARM_FLAG_N)?1:0) == |
} while (((cpu->cd.arm.flags & ARM_F_N)?1:0) == |
1413 |
((cpu->cd.arm.cpsr & ARM_FLAG_V)?1:0)); |
((cpu->cd.arm.flags & ARM_F_V)?1:0)); |
1414 |
|
|
1415 |
/* Continue at the instruction after the bge: */ |
/* Continue at the instruction after the bge: */ |
1416 |
cpu->cd.arm.next_ic = &ic[6]; |
cpu->cd.arm.next_ic = &ic[6]; |
1432 |
{ |
{ |
1433 |
uint32_t r1 = cpu->cd.arm.r[1]; |
uint32_t r1 = cpu->cd.arm.r[1]; |
1434 |
cpu->n_translated_instrs += ((r1 >> 5) * 3); |
cpu->n_translated_instrs += ((r1 >> 5) * 3); |
1435 |
|
cpu->cd.arm.r[0] += r1; |
1436 |
|
cpu->cd.arm.r[1] = 0; |
1437 |
cpu->cd.arm.next_ic = &ic[4]; |
cpu->cd.arm.next_ic = &ic[4]; |
1438 |
} |
} |
1439 |
|
|
1485 |
cpu->cd.arm.r[3] = page[t & 0xfff]; |
cpu->cd.arm.r[3] = page[t & 0xfff]; |
1486 |
|
|
1487 |
t = cpu->cd.arm.r[3] & cpu->cd.arm.r[ARM_IP]; |
t = cpu->cd.arm.r[3] & cpu->cd.arm.r[ARM_IP]; |
1488 |
cpu->cd.arm.cpsr &= ~(ARM_FLAG_Z | ARM_FLAG_N); |
cpu->cd.arm.flags &= ~(ARM_F_Z | ARM_F_N); |
1489 |
if (t == 0) |
if (t == 0) |
1490 |
cpu->cd.arm.cpsr |= ARM_FLAG_Z; |
cpu->cd.arm.flags |= ARM_F_Z; |
1491 |
|
|
1492 |
|
cpu->n_translated_instrs += 2; |
1493 |
|
cpu->cd.arm.next_ic = &ic[3]; |
1494 |
|
} |
1495 |
|
|
1496 |
|
|
1497 |
|
/* |
1498 |
|
* strlen: |
1499 |
|
* |
1500 |
|
* S: e5f03001 ldrb rY,[rX,#1]! |
1501 |
|
* e3530000 cmps rY,#0 |
1502 |
|
* 1afffffc bne S |
1503 |
|
*/ |
1504 |
|
X(strlen) |
1505 |
|
{ |
1506 |
|
unsigned int n_loops = 0; |
1507 |
|
uint32_t rY, rX = reg(ic[0].arg[0]); |
1508 |
|
unsigned char *p; |
1509 |
|
|
1510 |
|
do { |
1511 |
|
rX ++; |
1512 |
|
p = cpu->cd.arm.host_load[rX >> 12]; |
1513 |
|
if (p == NULL) { |
1514 |
|
cpu->n_translated_instrs += (n_loops * 3); |
1515 |
|
instr(load_w1_byte_u1_p1_imm)(cpu, ic); |
1516 |
|
return; |
1517 |
|
} |
1518 |
|
|
1519 |
|
rY = reg(ic[0].arg[2]) = p[rX & 0xfff]; /* load */ |
1520 |
|
reg(ic[0].arg[0]) = rX; /* writeback */ |
1521 |
|
n_loops ++; |
1522 |
|
|
1523 |
|
/* Compare rY to zero: */ |
1524 |
|
cpu->cd.arm.flags = ARM_F_C; |
1525 |
|
if (rY == 0) |
1526 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1527 |
|
} while (rY != 0); |
1528 |
|
|
1529 |
|
cpu->n_translated_instrs += (n_loops * 3) - 1; |
1530 |
|
cpu->cd.arm.next_ic = &ic[3]; |
1531 |
|
} |
1532 |
|
|
1533 |
|
|
1534 |
|
/* |
1535 |
|
* xchg: |
1536 |
|
* |
1537 |
|
* e02YX00X eor rX,rY,rX |
1538 |
|
* e02XY00Y eor rY,rX,rY |
1539 |
|
* e02YX00X eor rX,rY,rX |
1540 |
|
*/ |
1541 |
|
X(xchg) |
1542 |
|
{ |
1543 |
|
uint32_t tmp = reg(ic[0].arg[0]); |
1544 |
cpu->n_translated_instrs += 2; |
cpu->n_translated_instrs += 2; |
1545 |
cpu->cd.arm.next_ic = &ic[3]; |
cpu->cd.arm.next_ic = &ic[3]; |
1546 |
|
reg(ic[0].arg[0]) = reg(ic[1].arg[0]); |
1547 |
|
reg(ic[1].arg[0]) = tmp; |
1548 |
|
} |
1549 |
|
|
1550 |
|
|
1551 |
|
/* |
1552 |
|
* netbsd_copyin: |
1553 |
|
* |
1554 |
|
* e4b0a004 ldrt sl,[r0],#4 |
1555 |
|
* e4b0b004 ldrt fp,[r0],#4 |
1556 |
|
* e4b06004 ldrt r6,[r0],#4 |
1557 |
|
* e4b07004 ldrt r7,[r0],#4 |
1558 |
|
* e4b08004 ldrt r8,[r0],#4 |
1559 |
|
* e4b09004 ldrt r9,[r0],#4 |
1560 |
|
*/ |
1561 |
|
X(netbsd_copyin) |
1562 |
|
{ |
1563 |
|
uint32_t r0 = cpu->cd.arm.r[0], ofs = (r0 & 0xffc), index = r0 >> 12; |
1564 |
|
unsigned char *p = cpu->cd.arm.host_load[index]; |
1565 |
|
uint32_t *p32 = (uint32_t *) p, *q32; |
1566 |
|
int ok = cpu->cd.arm.is_userpage[index >> 5] & (1 << (index & 31)); |
1567 |
|
|
1568 |
|
if (ofs > 0x1000 - 6*4 || !ok || p == NULL) { |
1569 |
|
instr(load_w1_word_u1_p0_imm)(cpu, ic); |
1570 |
|
return; |
1571 |
|
} |
1572 |
|
q32 = &cpu->cd.arm.r[6]; |
1573 |
|
ofs >>= 2; |
1574 |
|
q32[0] = p32[ofs+2]; |
1575 |
|
q32[1] = p32[ofs+3]; |
1576 |
|
q32[2] = p32[ofs+4]; |
1577 |
|
q32[3] = p32[ofs+5]; |
1578 |
|
q32[4] = p32[ofs+0]; |
1579 |
|
q32[5] = p32[ofs+1]; |
1580 |
|
cpu->cd.arm.r[0] = r0 + 24; |
1581 |
|
cpu->n_translated_instrs += 5; |
1582 |
|
cpu->cd.arm.next_ic = &ic[6]; |
1583 |
|
} |
1584 |
|
|
1585 |
|
|
1586 |
|
/* |
1587 |
|
* netbsd_copyout: |
1588 |
|
* |
1589 |
|
* e4a18004 strt r8,[r1],#4 |
1590 |
|
* e4a19004 strt r9,[r1],#4 |
1591 |
|
* e4a1a004 strt sl,[r1],#4 |
1592 |
|
* e4a1b004 strt fp,[r1],#4 |
1593 |
|
* e4a16004 strt r6,[r1],#4 |
1594 |
|
* e4a17004 strt r7,[r1],#4 |
1595 |
|
*/ |
1596 |
|
X(netbsd_copyout) |
1597 |
|
{ |
1598 |
|
uint32_t r1 = cpu->cd.arm.r[1], ofs = (r1 & 0xffc), index = r1 >> 12; |
1599 |
|
unsigned char *p = cpu->cd.arm.host_store[index]; |
1600 |
|
uint32_t *p32 = (uint32_t *) p, *q32; |
1601 |
|
int ok = cpu->cd.arm.is_userpage[index >> 5] & (1 << (index & 31)); |
1602 |
|
|
1603 |
|
if (ofs > 0x1000 - 6*4 || !ok || p == NULL) { |
1604 |
|
instr(store_w1_word_u1_p0_imm)(cpu, ic); |
1605 |
|
return; |
1606 |
|
} |
1607 |
|
q32 = &cpu->cd.arm.r[6]; |
1608 |
|
ofs >>= 2; |
1609 |
|
p32[ofs ] = q32[2]; |
1610 |
|
p32[ofs+1] = q32[3]; |
1611 |
|
p32[ofs+2] = q32[4]; |
1612 |
|
p32[ofs+3] = q32[5]; |
1613 |
|
p32[ofs+4] = q32[0]; |
1614 |
|
p32[ofs+5] = q32[1]; |
1615 |
|
cpu->cd.arm.r[1] = r1 + 24; |
1616 |
|
cpu->n_translated_instrs += 5; |
1617 |
|
cpu->cd.arm.next_ic = &ic[6]; |
1618 |
|
} |
1619 |
|
|
1620 |
|
|
1621 |
|
/* |
1622 |
|
* cmps by 0, followed by beq (inside the same page): |
1623 |
|
*/ |
1624 |
|
X(cmps0_beq_samepage) |
1625 |
|
{ |
1626 |
|
uint32_t a = reg(ic->arg[0]); |
1627 |
|
cpu->n_translated_instrs ++; |
1628 |
|
if (a == 0) { |
1629 |
|
cpu->cd.arm.flags = ARM_F_Z | ARM_F_C; |
1630 |
|
} else { |
1631 |
|
/* Semi-ugly hack which sets the negative-bit if a < 0: */ |
1632 |
|
cpu->cd.arm.flags = ARM_F_C | ((a >> 28) & 8); |
1633 |
|
} |
1634 |
|
if (a == 0) |
1635 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic[1].arg[0]; |
1636 |
|
else |
1637 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1638 |
|
} |
1639 |
|
|
1640 |
|
|
1641 |
|
/* |
1642 |
|
* cmps followed by beq (inside the same page): |
1643 |
|
*/ |
1644 |
|
X(cmps_beq_samepage) |
1645 |
|
{ |
1646 |
|
uint32_t a = reg(ic->arg[0]), b = ic->arg[1], c = a - b; |
1647 |
|
cpu->n_translated_instrs ++; |
1648 |
|
cpu->cd.arm.flags = ((uint32_t)a >= (uint32_t)b)? ARM_F_C : 0; |
1649 |
|
if (((int32_t)a >= 0 && (int32_t)b < 0 && (int32_t)c < 0) || |
1650 |
|
((int32_t)a < 0 && (int32_t)b >= 0 && (int32_t)c >= 0)) |
1651 |
|
cpu->cd.arm.flags |= ARM_F_V; |
1652 |
|
if (c == 0) { |
1653 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1654 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic[1].arg[0]; |
1655 |
|
} else { |
1656 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1657 |
|
if (c & 0x80000000) |
1658 |
|
cpu->cd.arm.flags |= ARM_F_N; |
1659 |
|
} |
1660 |
|
} |
1661 |
|
|
1662 |
|
|
1663 |
|
/* |
1664 |
|
* cmps followed by beq (not the same page): |
1665 |
|
*/ |
1666 |
|
X(cmps_0_beq) |
1667 |
|
{ |
1668 |
|
uint32_t a = reg(ic->arg[0]); |
1669 |
|
cpu->n_translated_instrs ++; |
1670 |
|
if (a == 0) { |
1671 |
|
cpu->cd.arm.flags = ARM_F_Z | ARM_F_C; |
1672 |
|
cpu->pc = (uint32_t)(((uint32_t)cpu->pc & 0xfffff000) |
1673 |
|
+ (int32_t)ic[1].arg[0]); |
1674 |
|
quick_pc_to_pointers(cpu); |
1675 |
|
} else { |
1676 |
|
/* Semi-ugly hack which sets the negative-bit if a < 0: */ |
1677 |
|
cpu->cd.arm.flags = ARM_F_C | ((a >> 28) & 8); |
1678 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1679 |
|
} |
1680 |
|
} |
1681 |
|
X(cmps_pos_beq) |
1682 |
|
{ |
1683 |
|
uint32_t a = reg(ic->arg[0]), b = ic->arg[1], c = a - b; |
1684 |
|
cpu->n_translated_instrs ++; |
1685 |
|
cpu->cd.arm.flags = ((uint32_t)a >= (uint32_t)b)? ARM_F_C : 0; |
1686 |
|
if ((int32_t)a < 0 && (int32_t)c >= 0) |
1687 |
|
cpu->cd.arm.flags |= ARM_F_V; |
1688 |
|
if (c == 0) { |
1689 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1690 |
|
cpu->pc = (uint32_t)(((uint32_t)cpu->pc & 0xfffff000) |
1691 |
|
+ (int32_t)ic[1].arg[0]); |
1692 |
|
quick_pc_to_pointers(cpu); |
1693 |
|
} else { |
1694 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1695 |
|
if (c & 0x80000000) |
1696 |
|
cpu->cd.arm.flags |= ARM_F_N; |
1697 |
|
} |
1698 |
|
} |
1699 |
|
X(cmps_neg_beq) |
1700 |
|
{ |
1701 |
|
uint32_t a = reg(ic->arg[0]), b = ic->arg[1], c = a - b; |
1702 |
|
cpu->n_translated_instrs ++; |
1703 |
|
cpu->cd.arm.flags = ((uint32_t)a >= (uint32_t)b)? ARM_F_C : 0; |
1704 |
|
if ((int32_t)a >= 0 && (int32_t)c < 0) |
1705 |
|
cpu->cd.arm.flags |= ARM_F_V; |
1706 |
|
if (c == 0) { |
1707 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1708 |
|
cpu->pc = (uint32_t)(((uint32_t)cpu->pc & 0xfffff000) |
1709 |
|
+ (int32_t)ic[1].arg[0]); |
1710 |
|
quick_pc_to_pointers(cpu); |
1711 |
|
} else { |
1712 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1713 |
|
if (c & 0x80000000) |
1714 |
|
cpu->cd.arm.flags |= ARM_F_N; |
1715 |
|
} |
1716 |
|
} |
1717 |
|
|
1718 |
|
|
1719 |
|
/* |
1720 |
|
* cmps by 0, followed by bne (inside the same page): |
1721 |
|
*/ |
1722 |
|
X(cmps0_bne_samepage) |
1723 |
|
{ |
1724 |
|
uint32_t a = reg(ic->arg[0]); |
1725 |
|
cpu->n_translated_instrs ++; |
1726 |
|
if (a == 0) { |
1727 |
|
cpu->cd.arm.flags = ARM_F_Z | ARM_F_C; |
1728 |
|
} else { |
1729 |
|
/* Semi-ugly hack which sets the negative-bit if a < 0: */ |
1730 |
|
cpu->cd.arm.flags = ARM_F_C | ((a >> 28) & 8); |
1731 |
|
} |
1732 |
|
if (a == 0) |
1733 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1734 |
|
else |
1735 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic[1].arg[0]; |
1736 |
|
} |
1737 |
|
|
1738 |
|
|
1739 |
|
/* |
1740 |
|
* cmps followed by bne (inside the same page): |
1741 |
|
*/ |
1742 |
|
X(cmps_bne_samepage) |
1743 |
|
{ |
1744 |
|
uint32_t a = reg(ic->arg[0]), b = ic->arg[1], c = a - b; |
1745 |
|
cpu->n_translated_instrs ++; |
1746 |
|
cpu->cd.arm.flags = ((uint32_t)a >= (uint32_t)b)? ARM_F_C : 0; |
1747 |
|
if (((int32_t)a >= 0 && (int32_t)b < 0 && (int32_t)c < 0) || |
1748 |
|
((int32_t)a < 0 && (int32_t)b >= 0 && (int32_t)c >= 0)) |
1749 |
|
cpu->cd.arm.flags |= ARM_F_V; |
1750 |
|
if (c == 0) { |
1751 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1752 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1753 |
|
} else { |
1754 |
|
if (c & 0x80000000) |
1755 |
|
cpu->cd.arm.flags |= ARM_F_N; |
1756 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic[1].arg[0]; |
1757 |
|
} |
1758 |
|
} |
1759 |
|
|
1760 |
|
|
1761 |
|
/* |
1762 |
|
* cmps followed by bcc (inside the same page): |
1763 |
|
*/ |
1764 |
|
X(cmps_bcc_samepage) |
1765 |
|
{ |
1766 |
|
uint32_t a = reg(ic->arg[0]), b = ic->arg[1], c = a - b; |
1767 |
|
cpu->n_translated_instrs ++; |
1768 |
|
cpu->cd.arm.flags = ((uint32_t)a >= (uint32_t)b)? ARM_F_C : 0; |
1769 |
|
if (c & 0x80000000) |
1770 |
|
cpu->cd.arm.flags |= ARM_F_N; |
1771 |
|
else if (c == 0) |
1772 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1773 |
|
if (((int32_t)a >= 0 && (int32_t)b < 0 && (int32_t)c < 0) || |
1774 |
|
((int32_t)a < 0 && (int32_t)b >= 0 && (int32_t)c >= 0)) |
1775 |
|
cpu->cd.arm.flags |= ARM_F_V; |
1776 |
|
if (a >= b) |
1777 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1778 |
|
else |
1779 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic[1].arg[0]; |
1780 |
|
} |
1781 |
|
|
1782 |
|
|
1783 |
|
/* |
1784 |
|
* cmps (reg) followed by bcc (inside the same page): |
1785 |
|
*/ |
1786 |
|
X(cmps_reg_bcc_samepage) |
1787 |
|
{ |
1788 |
|
uint32_t a = reg(ic->arg[0]), b = reg(ic->arg[1]), c = a - b; |
1789 |
|
cpu->n_translated_instrs ++; |
1790 |
|
cpu->cd.arm.flags = ((uint32_t)a >= (uint32_t)b)? ARM_F_C : 0; |
1791 |
|
if (c & 0x80000000) |
1792 |
|
cpu->cd.arm.flags |= ARM_F_N; |
1793 |
|
else if (c == 0) |
1794 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1795 |
|
if (((int32_t)a >= 0 && (int32_t)b < 0 && (int32_t)c < 0) || |
1796 |
|
((int32_t)a < 0 && (int32_t)b >= 0 && (int32_t)c >= 0)) |
1797 |
|
cpu->cd.arm.flags |= ARM_F_V; |
1798 |
|
if (a >= b) |
1799 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1800 |
|
else |
1801 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic[1].arg[0]; |
1802 |
|
} |
1803 |
|
|
1804 |
|
|
1805 |
|
/* |
1806 |
|
* cmps followed by bhi (inside the same page): |
1807 |
|
*/ |
1808 |
|
X(cmps_bhi_samepage) |
1809 |
|
{ |
1810 |
|
uint32_t a = reg(ic->arg[0]), b = ic->arg[1], c = a - b; |
1811 |
|
cpu->n_translated_instrs ++; |
1812 |
|
cpu->cd.arm.flags = ((uint32_t)a >= (uint32_t)b)? ARM_F_C : 0; |
1813 |
|
if (c & 0x80000000) |
1814 |
|
cpu->cd.arm.flags |= ARM_F_N; |
1815 |
|
else if (c == 0) |
1816 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1817 |
|
if (((int32_t)a >= 0 && (int32_t)b < 0 && (int32_t)c < 0) || |
1818 |
|
((int32_t)a < 0 && (int32_t)b >= 0 && (int32_t)c >= 0)) |
1819 |
|
cpu->cd.arm.flags |= ARM_F_V; |
1820 |
|
if (a > b) |
1821 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic[1].arg[0]; |
1822 |
|
else |
1823 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1824 |
|
} |
1825 |
|
|
1826 |
|
|
1827 |
|
/* |
1828 |
|
* cmps (reg) followed by bhi (inside the same page): |
1829 |
|
*/ |
1830 |
|
X(cmps_reg_bhi_samepage) |
1831 |
|
{ |
1832 |
|
uint32_t a = reg(ic->arg[0]), b = reg(ic->arg[1]), c = a - b; |
1833 |
|
cpu->n_translated_instrs ++; |
1834 |
|
cpu->cd.arm.flags = ((uint32_t)a >= (uint32_t)b)? ARM_F_C : 0; |
1835 |
|
if (c & 0x80000000) |
1836 |
|
cpu->cd.arm.flags |= ARM_F_N; |
1837 |
|
else if (c == 0) |
1838 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1839 |
|
if (((int32_t)a >= 0 && (int32_t)b < 0 && (int32_t)c < 0) || |
1840 |
|
((int32_t)a < 0 && (int32_t)b >= 0 && (int32_t)c >= 0)) |
1841 |
|
cpu->cd.arm.flags |= ARM_F_V; |
1842 |
|
if (a > b) |
1843 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic[1].arg[0]; |
1844 |
|
else |
1845 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1846 |
|
} |
1847 |
|
|
1848 |
|
|
1849 |
|
/* |
1850 |
|
* cmps followed by bgt (inside the same page): |
1851 |
|
*/ |
1852 |
|
X(cmps_bgt_samepage) |
1853 |
|
{ |
1854 |
|
uint32_t a = reg(ic->arg[0]), b = ic->arg[1], c = a - b; |
1855 |
|
cpu->n_translated_instrs ++; |
1856 |
|
cpu->cd.arm.flags = ((uint32_t)a >= (uint32_t)b)? ARM_F_C : 0; |
1857 |
|
if (c & 0x80000000) |
1858 |
|
cpu->cd.arm.flags |= ARM_F_N; |
1859 |
|
else if (c == 0) |
1860 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1861 |
|
if (((int32_t)a >= 0 && (int32_t)b < 0 && (int32_t)c < 0) || |
1862 |
|
((int32_t)a < 0 && (int32_t)b >= 0 && (int32_t)c >= 0)) |
1863 |
|
cpu->cd.arm.flags |= ARM_F_V; |
1864 |
|
if ((int32_t)a > (int32_t)b) |
1865 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic[1].arg[0]; |
1866 |
|
else |
1867 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1868 |
|
} |
1869 |
|
|
1870 |
|
|
1871 |
|
/* |
1872 |
|
* cmps followed by ble (inside the same page): |
1873 |
|
*/ |
1874 |
|
X(cmps_ble_samepage) |
1875 |
|
{ |
1876 |
|
uint32_t a = reg(ic->arg[0]), b = ic->arg[1], c = a - b; |
1877 |
|
cpu->n_translated_instrs ++; |
1878 |
|
cpu->cd.arm.flags = ((uint32_t)a >= (uint32_t)b)? ARM_F_C : 0; |
1879 |
|
if (c & 0x80000000) |
1880 |
|
cpu->cd.arm.flags |= ARM_F_N; |
1881 |
|
else if (c == 0) |
1882 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1883 |
|
if (((int32_t)a >= 0 && (int32_t)b < 0 && (int32_t)c < 0) || |
1884 |
|
((int32_t)a < 0 && (int32_t)b >= 0 && (int32_t)c >= 0)) |
1885 |
|
cpu->cd.arm.flags |= ARM_F_V; |
1886 |
|
if ((int32_t)a <= (int32_t)b) |
1887 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) ic[1].arg[0]; |
1888 |
|
else |
1889 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1890 |
|
} |
1891 |
|
|
1892 |
|
|
1893 |
|
/* |
1894 |
|
* teqs followed by beq (inside the same page): |
1895 |
|
*/ |
1896 |
|
X(teqs_beq_samepage) |
1897 |
|
{ |
1898 |
|
uint32_t a = reg(ic->arg[0]), b = ic->arg[1], c = a ^ b; |
1899 |
|
cpu->n_translated_instrs ++; |
1900 |
|
cpu->cd.arm.flags &= ~(ARM_F_Z | ARM_F_N); |
1901 |
|
if (c == 0) { |
1902 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1903 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
1904 |
|
ic[1].arg[0]; |
1905 |
|
} else { |
1906 |
|
if (c & 0x80000000) |
1907 |
|
cpu->cd.arm.flags |= ARM_F_N; |
1908 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1909 |
|
} |
1910 |
|
} |
1911 |
|
|
1912 |
|
|
1913 |
|
/* |
1914 |
|
* tsts followed by beq (inside the same page): |
1915 |
|
* (arg[1] must not have its highest bit set)) |
1916 |
|
*/ |
1917 |
|
X(tsts_lo_beq_samepage) |
1918 |
|
{ |
1919 |
|
uint32_t a = reg(ic->arg[0]), b = ic->arg[1], c = a & b; |
1920 |
|
cpu->n_translated_instrs ++; |
1921 |
|
cpu->cd.arm.flags &= ~(ARM_F_Z | ARM_F_N); |
1922 |
|
if (c == 0) |
1923 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1924 |
|
if (c == 0) |
1925 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
1926 |
|
ic[1].arg[0]; |
1927 |
|
else |
1928 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1929 |
|
} |
1930 |
|
|
1931 |
|
|
1932 |
|
/* |
1933 |
|
* teqs followed by bne (inside the same page): |
1934 |
|
*/ |
1935 |
|
X(teqs_bne_samepage) |
1936 |
|
{ |
1937 |
|
uint32_t a = reg(ic->arg[0]), b = ic->arg[1], c = a ^ b; |
1938 |
|
cpu->n_translated_instrs ++; |
1939 |
|
cpu->cd.arm.flags &= ~(ARM_F_Z | ARM_F_N); |
1940 |
|
if (c == 0) { |
1941 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1942 |
|
} else { |
1943 |
|
if (c & 0x80000000) |
1944 |
|
cpu->cd.arm.flags |= ARM_F_N; |
1945 |
|
} |
1946 |
|
if (c == 0) |
1947 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1948 |
|
else |
1949 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
1950 |
|
ic[1].arg[0]; |
1951 |
|
} |
1952 |
|
|
1953 |
|
|
1954 |
|
/* |
1955 |
|
* tsts followed by bne (inside the same page): |
1956 |
|
* (arg[1] must not have its highest bit set)) |
1957 |
|
*/ |
1958 |
|
X(tsts_lo_bne_samepage) |
1959 |
|
{ |
1960 |
|
uint32_t a = reg(ic->arg[0]), b = ic->arg[1], c = a & b; |
1961 |
|
cpu->n_translated_instrs ++; |
1962 |
|
cpu->cd.arm.flags &= ~(ARM_F_Z | ARM_F_N); |
1963 |
|
if (c == 0) |
1964 |
|
cpu->cd.arm.flags |= ARM_F_Z; |
1965 |
|
if (c == 0) |
1966 |
|
cpu->cd.arm.next_ic = &ic[2]; |
1967 |
|
else |
1968 |
|
cpu->cd.arm.next_ic = (struct arm_instr_call *) |
1969 |
|
ic[1].arg[0]; |
1970 |
} |
} |
1971 |
|
|
1972 |
|
|
1976 |
X(end_of_page) |
X(end_of_page) |
1977 |
{ |
{ |
1978 |
/* Update the PC: (offset 0, but on the next page) */ |
/* Update the PC: (offset 0, but on the next page) */ |
1979 |
cpu->cd.arm.r[ARM_PC] &= ~((ARM_IC_ENTRIES_PER_PAGE-1) |
cpu->pc &= ~((ARM_IC_ENTRIES_PER_PAGE-1) << ARM_INSTR_ALIGNMENT_SHIFT); |
1980 |
<< ARM_INSTR_ALIGNMENT_SHIFT); |
cpu->pc += (ARM_IC_ENTRIES_PER_PAGE << ARM_INSTR_ALIGNMENT_SHIFT); |
|
cpu->cd.arm.r[ARM_PC] += (ARM_IC_ENTRIES_PER_PAGE |
|
|
<< ARM_INSTR_ALIGNMENT_SHIFT); |
|
|
cpu->pc = cpu->cd.arm.r[ARM_PC]; |
|
1981 |
|
|
1982 |
/* Find the new physical page and update the translation pointers: */ |
/* Find the new physical page and update the translation pointers: */ |
1983 |
quick_pc_to_pointers(cpu); |
quick_pc_to_pointers(cpu); |
1996 |
* Check for the core of a NetBSD/arm memset; large memsets use a sequence |
* Check for the core of a NetBSD/arm memset; large memsets use a sequence |
1997 |
* of 16 store-multiple instructions, each storing 2 registers at a time. |
* of 16 store-multiple instructions, each storing 2 registers at a time. |
1998 |
*/ |
*/ |
1999 |
void arm_combine_netbsd_memset(struct cpu *cpu, struct arm_instr_call *ic, |
void arm_combine_netbsd_memset(struct cpu *cpu, |
2000 |
int low_addr) |
struct arm_instr_call *ic, int low_addr) |
2001 |
{ |
{ |
2002 |
|
#ifdef HOST_LITTLE_ENDIAN |
2003 |
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
2004 |
& (ARM_IC_ENTRIES_PER_PAGE-1); |
& (ARM_IC_ENTRIES_PER_PAGE-1); |
2005 |
|
|
2016 |
combined; |
combined; |
2017 |
} |
} |
2018 |
} |
} |
2019 |
|
#endif |
2020 |
} |
} |
2021 |
|
|
2022 |
|
|
2026 |
* Check for the core of a NetBSD/arm memcpy; large memcpys use a |
* Check for the core of a NetBSD/arm memcpy; large memcpys use a |
2027 |
* sequence of ldmia instructions. |
* sequence of ldmia instructions. |
2028 |
*/ |
*/ |
2029 |
void arm_combine_netbsd_memcpy(struct cpu *cpu, struct arm_instr_call *ic, |
void arm_combine_netbsd_memcpy(struct cpu *cpu, |
2030 |
int low_addr) |
struct arm_instr_call *ic, int low_addr) |
2031 |
{ |
{ |
2032 |
|
#ifdef HOST_LITTLE_ENDIAN |
2033 |
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
2034 |
& (ARM_IC_ENTRIES_PER_PAGE-1); |
& (ARM_IC_ENTRIES_PER_PAGE-1); |
2035 |
|
|
2046 |
combined; |
combined; |
2047 |
} |
} |
2048 |
} |
} |
2049 |
|
#endif |
2050 |
} |
} |
2051 |
|
|
2052 |
|
|
2055 |
* |
* |
2056 |
* Check for the core of a NetBSD/arm cache clean. (There are two variants.) |
* Check for the core of a NetBSD/arm cache clean. (There are two variants.) |
2057 |
*/ |
*/ |
2058 |
void arm_combine_netbsd_cacheclean(struct cpu *cpu, struct arm_instr_call *ic, |
void arm_combine_netbsd_cacheclean(struct cpu *cpu, |
2059 |
int low_addr) |
struct arm_instr_call *ic, int low_addr) |
2060 |
{ |
{ |
2061 |
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
2062 |
& (ARM_IC_ENTRIES_PER_PAGE-1); |
& (ARM_IC_ENTRIES_PER_PAGE-1); |
2079 |
* |
* |
2080 |
* Check for the core of a NetBSD/arm cache clean. (Second variant.) |
* Check for the core of a NetBSD/arm cache clean. (Second variant.) |
2081 |
*/ |
*/ |
2082 |
void arm_combine_netbsd_cacheclean2(struct cpu *cpu, struct arm_instr_call *ic, |
void arm_combine_netbsd_cacheclean2(struct cpu *cpu, |
2083 |
int low_addr) |
struct arm_instr_call *ic, int low_addr) |
2084 |
{ |
{ |
2085 |
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
2086 |
& (ARM_IC_ENTRIES_PER_PAGE-1); |
& (ARM_IC_ENTRIES_PER_PAGE-1); |
2102 |
/* |
/* |
2103 |
* arm_combine_netbsd_scanc(): |
* arm_combine_netbsd_scanc(): |
2104 |
*/ |
*/ |
2105 |
void arm_combine_netbsd_scanc(struct cpu *cpu, struct arm_instr_call *ic, |
void arm_combine_netbsd_scanc(struct cpu *cpu, |
2106 |
int low_addr) |
struct arm_instr_call *ic, int low_addr) |
2107 |
{ |
{ |
2108 |
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
2109 |
& (ARM_IC_ENTRIES_PER_PAGE-1); |
& (ARM_IC_ENTRIES_PER_PAGE-1); |
2110 |
|
|
2111 |
if (n_back >= 2) { |
if (n_back < 2) |
2112 |
if (ic[-2].f == instr(load_w0_byte_u1_p1_imm) && |
return; |
2113 |
ic[-1].f == instr(load_w0_byte_u1_p1_reg)) { |
|
2114 |
ic[-2].f = instr(netbsd_scanc); |
if (ic[-2].f == instr(load_w0_byte_u1_p1_imm) && |
2115 |
combined; |
ic[-2].arg[0] == (size_t)(&cpu->cd.arm.r[1]) && |
2116 |
} |
ic[-2].arg[1] == 0 && |
2117 |
|
ic[-2].arg[2] == (size_t)(&cpu->cd.arm.r[3]) && |
2118 |
|
ic[-1].f == instr(load_w0_byte_u1_p1_reg) && |
2119 |
|
ic[-1].arg[0] == (size_t)(&cpu->cd.arm.r[2]) && |
2120 |
|
ic[-1].arg[1] == (size_t)arm_r_r3_t0_c0 && |
2121 |
|
ic[-1].arg[2] == (size_t)(&cpu->cd.arm.r[3])) { |
2122 |
|
ic[-2].f = instr(netbsd_scanc); |
2123 |
|
combined; |
2124 |
} |
} |
2125 |
} |
} |
2126 |
|
|
2127 |
|
|
2128 |
/* |
/* |
2129 |
* arm_combine_test2(): |
* arm_combine_strlen(): |
2130 |
*/ |
*/ |
2131 |
void arm_combine_test2(struct cpu *cpu, struct arm_instr_call *ic, int low_addr) |
void arm_combine_strlen(struct cpu *cpu, |
2132 |
|
struct arm_instr_call *ic, int low_addr) |
2133 |
{ |
{ |
2134 |
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
2135 |
& (ARM_IC_ENTRIES_PER_PAGE-1); |
& (ARM_IC_ENTRIES_PER_PAGE-1); |
2136 |
|
|
2137 |
if (n_back >= 2) { |
if (n_back < 2) |
2138 |
if (ic[-2].f == instr(store_w0_word_u1_p0_imm) && |
return; |
2139 |
ic[-2].arg[1] == 4 && |
|
2140 |
ic[-1].f == instr(subs) && |
if (ic[-2].f == instr(load_w1_byte_u1_p1_imm) && |
2141 |
ic[-1].arg[0] == ic[-1].arg[2] && ic[-1].arg[1] == 4 && |
ic[-2].arg[1] == 1 && |
2142 |
ic[ 0].f == instr(b_samepage__gt) && |
ic[-2].arg[2] == (size_t)(&cpu->cd.arm.r[3]) && |
2143 |
ic[ 0].arg[0] == (size_t)&ic[-2]) { |
ic[-1].f == instr(cmps) && |
2144 |
ic[-2].f = instr(fill_loop_test2); |
ic[-1].arg[0] == (size_t)(&cpu->cd.arm.r[3]) && |
2145 |
printf("YO test2\n"); |
ic[-1].arg[1] == 0) { |
2146 |
combined; |
ic[-2].f = instr(strlen); |
2147 |
} |
combined; |
2148 |
} |
} |
2149 |
} |
} |
2150 |
|
|
2151 |
|
|
2152 |
#if 0 |
/* |
2153 |
/* TODO: This is another test hack. */ |
* arm_combine_xchg(): |
2154 |
|
*/ |
2155 |
|
void arm_combine_xchg(struct cpu *cpu, |
2156 |
|
struct arm_instr_call *ic, int low_addr) |
2157 |
|
{ |
2158 |
|
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
2159 |
|
& (ARM_IC_ENTRIES_PER_PAGE-1); |
2160 |
|
size_t a, b; |
2161 |
|
|
2162 |
if (n_back >= 3) { |
if (n_back < 2) |
2163 |
if (ic[-3].f == instr(cmps) && |
return; |
2164 |
ic[-3].arg[0] == ic[-1].arg[0] && |
|
2165 |
ic[-3].arg[1] == 0 && |
a = ic[-2].arg[0]; b = ic[-1].arg[0]; |
2166 |
ic[-2].f == instr(store_w0_byte_u1_p0_imm) && |
|
2167 |
ic[-2].arg[1] == 1 && |
if (ic[-2].f == instr(eor_regshort) && |
2168 |
ic[-1].f == instr(sub) && |
ic[-1].f == instr(eor_regshort) && |
2169 |
ic[-1].arg[0] == ic[-1].arg[2] && ic[-1].arg[1] == 1 && |
ic[-2].arg[0] == a && ic[-2].arg[1] == b && ic[-2].arg[2] == b && |
2170 |
ic[ 0].f == instr(b_samepage__gt) && |
ic[-1].arg[0] == b && ic[-1].arg[1] == a && ic[-1].arg[2] == a && |
2171 |
ic[ 0].arg[0] == (size_t)&ic[-3]) { |
ic[ 0].arg[0] == a && ic[ 0].arg[1] == b && ic[ 0].arg[2] == b) { |
2172 |
ic[-3].f = instr(fill_loop_test); |
ic[-2].f = instr(xchg); |
2173 |
|
combined; |
2174 |
|
} |
2175 |
|
} |
2176 |
|
|
2177 |
|
|
2178 |
|
/* |
2179 |
|
* arm_combine_netbsd_copyin(): |
2180 |
|
*/ |
2181 |
|
void arm_combine_netbsd_copyin(struct cpu *cpu, |
2182 |
|
struct arm_instr_call *ic, int low_addr) |
2183 |
|
{ |
2184 |
|
#ifdef HOST_LITTLE_ENDIAN |
2185 |
|
int i, n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
2186 |
|
& (ARM_IC_ENTRIES_PER_PAGE-1); |
2187 |
|
|
2188 |
|
if (n_back < 5) |
2189 |
|
return; |
2190 |
|
|
2191 |
|
for (i=-5; i<0; i++) { |
2192 |
|
if (ic[i].f != instr(load_w1_word_u1_p0_imm) || |
2193 |
|
ic[i].arg[0] != (size_t)(&cpu->cd.arm.r[0]) || |
2194 |
|
ic[i].arg[1] != 4) |
2195 |
|
return; |
2196 |
|
} |
2197 |
|
|
2198 |
|
if (ic[-5].arg[2] == (size_t)(&cpu->cd.arm.r[10]) && |
2199 |
|
ic[-4].arg[2] == (size_t)(&cpu->cd.arm.r[11]) && |
2200 |
|
ic[-3].arg[2] == (size_t)(&cpu->cd.arm.r[6]) && |
2201 |
|
ic[-2].arg[2] == (size_t)(&cpu->cd.arm.r[7]) && |
2202 |
|
ic[-1].arg[2] == (size_t)(&cpu->cd.arm.r[8])) { |
2203 |
|
ic[-5].f = instr(netbsd_copyin); |
2204 |
|
combined; |
2205 |
|
} |
2206 |
|
#endif |
2207 |
|
} |
2208 |
|
|
2209 |
|
|
2210 |
|
/* |
2211 |
|
* arm_combine_netbsd_copyout(): |
2212 |
|
*/ |
2213 |
|
void arm_combine_netbsd_copyout(struct cpu *cpu, |
2214 |
|
struct arm_instr_call *ic, int low_addr) |
2215 |
|
{ |
2216 |
|
#ifdef HOST_LITTLE_ENDIAN |
2217 |
|
int i, n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
2218 |
|
& (ARM_IC_ENTRIES_PER_PAGE-1); |
2219 |
|
|
2220 |
|
if (n_back < 5) |
2221 |
|
return; |
2222 |
|
|
2223 |
|
for (i=-5; i<0; i++) { |
2224 |
|
if (ic[i].f != instr(store_w1_word_u1_p0_imm) || |
2225 |
|
ic[i].arg[0] != (size_t)(&cpu->cd.arm.r[1]) || |
2226 |
|
ic[i].arg[1] != 4) |
2227 |
|
return; |
2228 |
|
} |
2229 |
|
|
2230 |
|
if (ic[-5].arg[2] == (size_t)(&cpu->cd.arm.r[8]) && |
2231 |
|
ic[-4].arg[2] == (size_t)(&cpu->cd.arm.r[9]) && |
2232 |
|
ic[-3].arg[2] == (size_t)(&cpu->cd.arm.r[10]) && |
2233 |
|
ic[-2].arg[2] == (size_t)(&cpu->cd.arm.r[11]) && |
2234 |
|
ic[-1].arg[2] == (size_t)(&cpu->cd.arm.r[6])) { |
2235 |
|
ic[-5].f = instr(netbsd_copyout); |
2236 |
|
combined; |
2237 |
|
} |
2238 |
|
#endif |
2239 |
|
} |
2240 |
|
|
2241 |
|
|
2242 |
|
/* |
2243 |
|
* arm_combine_cmps_b(): |
2244 |
|
*/ |
2245 |
|
void arm_combine_cmps_b(struct cpu *cpu, |
2246 |
|
struct arm_instr_call *ic, int low_addr) |
2247 |
|
{ |
2248 |
|
int n_back = (low_addr >> ARM_INSTR_ALIGNMENT_SHIFT) |
2249 |
|
& (ARM_IC_ENTRIES_PER_PAGE-1); |
2250 |
|
if (n_back < 1) |
2251 |
|
return; |
2252 |
|
if (ic[0].f == instr(b__eq)) { |
2253 |
|
if (ic[-1].f == instr(cmps)) { |
2254 |
|
if (ic[-1].arg[1] == 0) |
2255 |
|
ic[-1].f = instr(cmps_0_beq); |
2256 |
|
else if (ic[-1].arg[1] & 0x80000000) |
2257 |
|
ic[-1].f = instr(cmps_neg_beq); |
2258 |
|
else |
2259 |
|
ic[-1].f = instr(cmps_pos_beq); |
2260 |
combined; |
combined; |
2261 |
} |
} |
2262 |
|
return; |
2263 |
} |
} |
2264 |
/* TODO: Combine forward as well */ |
if (ic[0].f == instr(b_samepage__eq)) { |
2265 |
#endif |
if (ic[-1].f == instr(cmps)) { |
2266 |
|
if (ic[-1].arg[1] == 0) |
2267 |
|
ic[-1].f = instr(cmps0_beq_samepage); |
2268 |
|
else |
2269 |
|
ic[-1].f = instr(cmps_beq_samepage); |
2270 |
|
combined; |
2271 |
|
} |
2272 |
|
if (ic[-1].f == instr(tsts) && |
2273 |
|
!(ic[-1].arg[1] & 0x80000000)) { |
2274 |
|
ic[-1].f = instr(tsts_lo_beq_samepage); |
2275 |
|
combined; |
2276 |
|
} |
2277 |
|
if (ic[-1].f == instr(teqs)) { |
2278 |
|
ic[-1].f = instr(teqs_beq_samepage); |
2279 |
|
combined; |
2280 |
|
} |
2281 |
|
return; |
2282 |
|
} |
2283 |
|
if (ic[0].f == instr(b_samepage__ne)) { |
2284 |
|
if (ic[-1].f == instr(cmps)) { |
2285 |
|
if (ic[-1].arg[1] == 0) |
2286 |
|
ic[-1].f = instr(cmps0_bne_samepage); |
2287 |
|
else |
2288 |
|
ic[-1].f = instr(cmps_bne_samepage); |
2289 |
|
combined; |
2290 |
|
} |
2291 |
|
if (ic[-1].f == instr(tsts) && |
2292 |
|
!(ic[-1].arg[1] & 0x80000000)) { |
2293 |
|
ic[-1].f = instr(tsts_lo_bne_samepage); |
2294 |
|
combined; |
2295 |
|
} |
2296 |
|
if (ic[-1].f == instr(teqs)) { |
2297 |
|
ic[-1].f = instr(teqs_bne_samepage); |
2298 |
|
combined; |
2299 |
|
} |
2300 |
|
return; |
2301 |
|
} |
2302 |
|
if (ic[0].f == instr(b_samepage__cc)) { |
2303 |
|
if (ic[-1].f == instr(cmps)) { |
2304 |
|
ic[-1].f = instr(cmps_bcc_samepage); |
2305 |
|
combined; |
2306 |
|
} |
2307 |
|
if (ic[-1].f == instr(cmps_regshort)) { |
2308 |
|
ic[-1].f = instr(cmps_reg_bcc_samepage); |
2309 |
|
combined; |
2310 |
|
} |
2311 |
|
return; |
2312 |
|
} |
2313 |
|
if (ic[0].f == instr(b_samepage__hi)) { |
2314 |
|
if (ic[-1].f == instr(cmps)) { |
2315 |
|
ic[-1].f = instr(cmps_bhi_samepage); |
2316 |
|
combined; |
2317 |
|
} |
2318 |
|
if (ic[-1].f == instr(cmps_regshort)) { |
2319 |
|
ic[-1].f = instr(cmps_reg_bhi_samepage); |
2320 |
|
combined; |
2321 |
|
} |
2322 |
|
return; |
2323 |
|
} |
2324 |
|
if (ic[0].f == instr(b_samepage__gt)) { |
2325 |
|
if (ic[-1].f == instr(cmps)) { |
2326 |
|
ic[-1].f = instr(cmps_bgt_samepage); |
2327 |
|
combined; |
2328 |
|
} |
2329 |
|
return; |
2330 |
|
} |
2331 |
|
if (ic[0].f == instr(b_samepage__le)) { |
2332 |
|
if (ic[-1].f == instr(cmps)) { |
2333 |
|
ic[-1].f = instr(cmps_ble_samepage); |
2334 |
|
combined; |
2335 |
|
} |
2336 |
|
return; |
2337 |
|
} |
2338 |
|
} |
2339 |
|
|
2340 |
|
|
2341 |
|
/*****************************************************************************/ |
2342 |
|
|
2343 |
|
|
2344 |
|
static void arm_switch_clear(struct arm_instr_call *ic, int rd, |
2345 |
|
int condition_code) |
2346 |
|
{ |
2347 |
|
switch (rd) { |
2348 |
|
case 0: ic->f = cond_instr(clear_r0); break; |
2349 |
|
case 1: ic->f = cond_instr(clear_r1); break; |
2350 |
|
case 2: ic->f = cond_instr(clear_r2); break; |
2351 |
|
case 3: ic->f = cond_instr(clear_r3); break; |
2352 |
|
case 4: ic->f = cond_instr(clear_r4); break; |
2353 |
|
case 5: ic->f = cond_instr(clear_r5); break; |
2354 |
|
case 6: ic->f = cond_instr(clear_r6); break; |
2355 |
|
case 7: ic->f = cond_instr(clear_r7); break; |
2356 |
|
case 8: ic->f = cond_instr(clear_r8); break; |
2357 |
|
case 9: ic->f = cond_instr(clear_r9); break; |
2358 |
|
case 10: ic->f = cond_instr(clear_r10); break; |
2359 |
|
case 11: ic->f = cond_instr(clear_r11); break; |
2360 |
|
case 12: ic->f = cond_instr(clear_r12); break; |
2361 |
|
case 13: ic->f = cond_instr(clear_r13); break; |
2362 |
|
case 14: ic->f = cond_instr(clear_r14); break; |
2363 |
|
} |
2364 |
|
} |
2365 |
|
|
2366 |
|
|
2367 |
|
static void arm_switch_mov1(struct arm_instr_call *ic, int rd, |
2368 |
|
int condition_code) |
2369 |
|
{ |
2370 |
|
switch (rd) { |
2371 |
|
case 0: ic->f = cond_instr(mov1_r0); break; |
2372 |
|
case 1: ic->f = cond_instr(mov1_r1); break; |
2373 |
|
case 2: ic->f = cond_instr(mov1_r2); break; |
2374 |
|
case 3: ic->f = cond_instr(mov1_r3); break; |
2375 |
|
case 4: ic->f = cond_instr(mov1_r4); break; |
2376 |
|
case 5: ic->f = cond_instr(mov1_r5); break; |
2377 |
|
case 6: ic->f = cond_instr(mov1_r6); break; |
2378 |
|
case 7: ic->f = cond_instr(mov1_r7); break; |
2379 |
|
case 8: ic->f = cond_instr(mov1_r8); break; |
2380 |
|
case 9: ic->f = cond_instr(mov1_r9); break; |
2381 |
|
case 10: ic->f = cond_instr(mov1_r10); break; |
2382 |
|
case 11: ic->f = cond_instr(mov1_r11); break; |
2383 |
|
case 12: ic->f = cond_instr(mov1_r12); break; |
2384 |
|
case 13: ic->f = cond_instr(mov1_r13); break; |
2385 |
|
case 14: ic->f = cond_instr(mov1_r14); break; |
2386 |
|
} |
2387 |
|
} |
2388 |
|
|
2389 |
|
|
2390 |
|
static void arm_switch_add1(struct arm_instr_call *ic, int rd, |
2391 |
|
int condition_code) |
2392 |
|
{ |
2393 |
|
switch (rd) { |
2394 |
|
case 0: ic->f = cond_instr(add1_r0); break; |
2395 |
|
case 1: ic->f = cond_instr(add1_r1); break; |
2396 |
|
case 2: ic->f = cond_instr(add1_r2); break; |
2397 |
|
case 3: ic->f = cond_instr(add1_r3); break; |
2398 |
|
case 4: ic->f = cond_instr(add1_r4); break; |
2399 |
|
case 5: ic->f = cond_instr(add1_r5); break; |
2400 |
|
case 6: ic->f = cond_instr(add1_r6); break; |
2401 |
|
case 7: ic->f = cond_instr(add1_r7); break; |
2402 |
|
case 8: ic->f = cond_instr(add1_r8); break; |
2403 |
|
case 9: ic->f = cond_instr(add1_r9); break; |
2404 |
|
case 10: ic->f = cond_instr(add1_r10); break; |
2405 |
|
case 11: ic->f = cond_instr(add1_r11); break; |
2406 |
|
case 12: ic->f = cond_instr(add1_r12); break; |
2407 |
|
case 13: ic->f = cond_instr(add1_r13); break; |
2408 |
|
case 14: ic->f = cond_instr(add1_r14); break; |
2409 |
|
} |
2410 |
|
} |
2411 |
|
|
2412 |
|
|
2413 |
/*****************************************************************************/ |
/*****************************************************************************/ |
2427 |
unsigned char *page; |
unsigned char *page; |
2428 |
unsigned char ib[4]; |
unsigned char ib[4]; |
2429 |
int condition_code, main_opcode, secondary_opcode, s_bit, rn, rd, r8; |
int condition_code, main_opcode, secondary_opcode, s_bit, rn, rd, r8; |
2430 |
int p_bit, u_bit, b_bit, w_bit, l_bit, regform, rm, c, t, any_pc_reg; |
int p_bit, u_bit, w_bit, l_bit, regform, rm, c, t, any_pc_reg; |
2431 |
void (*samepage_function)(struct cpu *, struct arm_instr_call *); |
void (*samepage_function)(struct cpu *, struct arm_instr_call *); |
2432 |
|
|
2433 |
/* Figure out the address of the instruction: */ |
/* Figure out the address of the instruction: */ |
2434 |
low_pc = ((size_t)ic - (size_t)cpu->cd.arm.cur_ic_page) |
low_pc = ((size_t)ic - (size_t)cpu->cd.arm.cur_ic_page) |
2435 |
/ sizeof(struct arm_instr_call); |
/ sizeof(struct arm_instr_call); |
2436 |
addr = cpu->cd.arm.r[ARM_PC] & ~((ARM_IC_ENTRIES_PER_PAGE-1) << |
addr = cpu->pc & ~((ARM_IC_ENTRIES_PER_PAGE-1) << |
2437 |
ARM_INSTR_ALIGNMENT_SHIFT); |
ARM_INSTR_ALIGNMENT_SHIFT); |
2438 |
addr += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
addr += (low_pc << ARM_INSTR_ALIGNMENT_SHIFT); |
2439 |
cpu->pc = cpu->cd.arm.r[ARM_PC] = addr; |
cpu->pc = addr; |
2440 |
addr &= ~((1 << ARM_INSTR_ALIGNMENT_SHIFT) - 1); |
addr &= ~((1 << ARM_INSTR_ALIGNMENT_SHIFT) - 1); |
2441 |
|
|
2442 |
/* Read the instruction word from memory: */ |
/* Read the instruction word from memory: */ |
2443 |
page = cpu->cd.arm.host_load[addr >> 12]; |
page = cpu->cd.arm.host_load[addr >> 12]; |
2444 |
if (page != NULL) { |
if (page != NULL) { |
2445 |
/* fatal("TRANSLATION HIT!\n"); */ |
/* fatal("TRANSLATION HIT! 0x%08x\n", addr); */ |
2446 |
memcpy(ib, page + (addr & 0xfff), sizeof(ib)); |
memcpy(ib, page + (addr & 0xfff), sizeof(ib)); |
2447 |
} else { |
} else { |
2448 |
/* fatal("TRANSLATION MISS!\n"); */ |
/* fatal("TRANSLATION MISS! 0x%08x\n", addr); */ |
2449 |
if (!cpu->memory_rw(cpu, cpu->mem, addr, &ib[0], |
if (!cpu->memory_rw(cpu, cpu->mem, addr, &ib[0], |
2450 |
sizeof(ib), MEM_READ, CACHE_INSTRUCTION)) { |
sizeof(ib), MEM_READ, CACHE_INSTRUCTION)) { |
2451 |
fatal("to_be_translated(): " |
fatal("to_be_translated(): " |
2470 |
condition_code = iword >> 28; |
condition_code = iword >> 28; |
2471 |
main_opcode = (iword >> 24) & 15; |
main_opcode = (iword >> 24) & 15; |
2472 |
secondary_opcode = (iword >> 21) & 15; |
secondary_opcode = (iword >> 21) & 15; |
2473 |
u_bit = (iword >> 23) & 1; |
u_bit = iword & 0x00800000; |
2474 |
b_bit = (iword >> 22) & 1; |
w_bit = iword & 0x00200000; |
2475 |
w_bit = (iword >> 21) & 1; |
s_bit = l_bit = iword & 0x00100000; |
|
s_bit = l_bit = (iword >> 20) & 1; |
|
2476 |
rn = (iword >> 16) & 15; |
rn = (iword >> 16) & 15; |
2477 |
rd = (iword >> 12) & 15; |
rd = (iword >> 12) & 15; |
2478 |
r8 = (iword >> 8) & 15; |
r8 = (iword >> 8) & 15; |
2537 |
ic->arg[0] = iword; |
ic->arg[0] = iword; |
2538 |
break; |
break; |
2539 |
} |
} |
2540 |
|
if ((iword & 0x0f900ff0) == 0x01000050) { |
2541 |
|
fatal("TODO: q{,d}{add,sub}\n"); |
2542 |
|
goto bad; |
2543 |
|
} |
2544 |
if ((iword & 0x0ff000d0) == 0x01200010) { |
if ((iword & 0x0ff000d0) == 0x01200010) { |
2545 |
/* bx or blx */ |
/* bx or blx */ |
2546 |
if (iword & 0x20) |
if (iword & 0x20) |
2565 |
ic->arg[2] = (size_t)(&cpu->cd.arm.r[rn]); |
ic->arg[2] = (size_t)(&cpu->cd.arm.r[rn]); |
2566 |
break; |
break; |
2567 |
} |
} |
2568 |
|
if ((iword & 0x0fff0ff0) == 0x016f0f10) { |
2569 |
|
ic->f = cond_instr(clz); |
2570 |
|
ic->arg[0] = (size_t)(&cpu->cd.arm.r[rm]); |
2571 |
|
ic->arg[1] = (size_t)(&cpu->cd.arm.r[rd]); |
2572 |
|
break; |
2573 |
|
} |
2574 |
|
if ((iword & 0x0ff00090) == 0x01000080) { |
2575 |
|
/* TODO: smlaXX */ |
2576 |
|
goto bad; |
2577 |
|
} |
2578 |
|
if ((iword & 0x0ff00090) == 0x01400080) { |
2579 |
|
/* TODO: smlalY */ |
2580 |
|
goto bad; |
2581 |
|
} |
2582 |
|
if ((iword & 0x0ff000b0) == 0x01200080) { |
2583 |
|
/* TODO: smlawY */ |
2584 |
|
goto bad; |
2585 |
|
} |
2586 |
|
if ((iword & 0x0ff0f090) == 0x01600080) { |
2587 |
|
/* TODO: smulXY */ |
2588 |
|
goto bad; |
2589 |
|
} |
2590 |
|
if ((iword & 0x0ff0f0b0) == 0x012000a0) { |
2591 |
|
/* TODO: smulwY */ |
2592 |
|
goto bad; |
2593 |
|
} |
2594 |
if ((iword & 0x0fb0fff0) == 0x0120f000 || |
if ((iword & 0x0fb0fff0) == 0x0120f000 || |
2595 |
(iword & 0x0fb0f000) == 0x0320f000) { |
(iword & 0x0fb0f000) == 0x0320f000) { |
2596 |
/* msr: move to [S|C]PSR from a register or |
/* msr: move to [S|C]PSR from a register or |
2686 |
break; |
break; |
2687 |
} |
} |
2688 |
|
|
2689 |
/* "mov reg,reg": */ |
/* "mov reg,reg" or "mov reg,pc": */ |
2690 |
if ((iword & 0x0fff0ff0) == 0x01a00000 && |
if ((iword & 0x0fff0ff0) == 0x01a00000 && rd != ARM_PC) { |
2691 |
(iword&15) != ARM_PC && rd != ARM_PC) { |
if (rm != ARM_PC) { |
2692 |
ic->f = cond_instr(mov_reg_reg); |
ic->f = cond_instr(mov_reg_reg); |
2693 |
ic->arg[0] = (size_t)(&cpu->cd.arm.r[iword & 15]); |
ic->arg[0] = (size_t)(&cpu->cd.arm.r[rm]); |
2694 |
|
} else { |
2695 |
|
ic->f = cond_instr(mov_reg_pc); |
2696 |
|
ic->arg[0] = (addr & 0xfff) + 8; |
2697 |
|
} |
2698 |
ic->arg[1] = (size_t)(&cpu->cd.arm.r[rd]); |
ic->arg[1] = (size_t)(&cpu->cd.arm.r[rd]); |
2699 |
break; |
break; |
2700 |
} |
} |
2701 |
|
|
2702 |
/* "mov reg,#0": */ |
/* "mov reg,#0": */ |
2703 |
if ((iword & 0x0fff0fff) == 0x03a03000 && rd != ARM_PC) { |
if ((iword & 0x0fff0fff) == 0x03a00000 && rd != ARM_PC) { |
2704 |
switch (rd) { |
arm_switch_clear(ic, rd, condition_code); |
|
case 0: ic->f = cond_instr(clear_r0); break; |
|
|
case 1: ic->f = cond_instr(clear_r1); break; |
|
|
case 2: ic->f = cond_instr(clear_r2); break; |
|
|
case 3: ic->f = cond_instr(clear_r3); break; |
|
|
case 4: ic->f = cond_instr(clear_r4); break; |
|
|
case 5: ic->f = cond_instr(clear_r5); break; |
|
|
case 6: ic->f = cond_instr(clear_r6); break; |
|
|
case 7: ic->f = cond_instr(clear_r7); break; |
|
|
case 8: ic->f = cond_instr(clear_r8); break; |
|
|
case 9: ic->f = cond_instr(clear_r9); break; |
|
|
case 10: ic->f = cond_instr(clear_r10); break; |
|
|
case 11: ic->f = cond_instr(clear_r11); break; |
|
|
case 12: ic->f = cond_instr(clear_r12); break; |
|
|
case 13: ic->f = cond_instr(clear_r13); break; |
|
|
case 14: ic->f = cond_instr(clear_r14); break; |
|
|
} |
|
2705 |
break; |
break; |
2706 |
} |
} |
2707 |
|
|
2708 |
/* "mov reg,#1": */ |
/* "mov reg,#1": */ |
2709 |
if ((iword & 0x0fff0fff) == 0x03a03001 && rd != ARM_PC) { |
if ((iword & 0x0fff0fff) == 0x03a00001 && rd != ARM_PC) { |
2710 |
switch (rd) { |
arm_switch_mov1(ic, rd, condition_code); |
2711 |
case 0: ic->f = cond_instr(mov1_r0); break; |
break; |
2712 |
case 1: ic->f = cond_instr(mov1_r1); break; |
} |
2713 |
case 2: ic->f = cond_instr(mov1_r2); break; |
|
2714 |
case 3: ic->f = cond_instr(mov1_r3); break; |
/* "add reg,reg,#1": */ |
2715 |
case 4: ic->f = cond_instr(mov1_r4); break; |
if ((iword & 0x0ff00fff) == 0x02800001 && rd != ARM_PC |
2716 |
case 5: ic->f = cond_instr(mov1_r5); break; |
&& rn == rd) { |
2717 |
case 6: ic->f = cond_instr(mov1_r6); break; |
arm_switch_add1(ic, rd, condition_code); |
|
case 7: ic->f = cond_instr(mov1_r7); break; |
|
|
case 8: ic->f = cond_instr(mov1_r8); break; |
|
|
case 9: ic->f = cond_instr(mov1_r9); break; |
|
|
case 10: ic->f = cond_instr(mov1_r10); break; |
|
|
case 11: ic->f = cond_instr(mov1_r11); break; |
|
|
case 12: ic->f = cond_instr(mov1_r12); break; |
|
|
case 13: ic->f = cond_instr(mov1_r13); break; |
|
|
case 14: ic->f = cond_instr(mov1_r14); break; |
|
|
} |
|
2718 |
break; |
break; |
2719 |
} |
} |
2720 |
|
|
2745 |
ic->arg[1] = imm; |
ic->arg[1] = imm; |
2746 |
} |
} |
2747 |
|
|
2748 |
|
/* mvn #imm ==> mov #~imm */ |
2749 |
|
if (secondary_opcode == 0xf && !regform) { |
2750 |
|
secondary_opcode = 0xd; |
2751 |
|
ic->arg[1] = ~ic->arg[1]; |
2752 |
|
} |
2753 |
|
|
2754 |
ic->arg[0] = (size_t)(&cpu->cd.arm.r[rn]); |
ic->arg[0] = (size_t)(&cpu->cd.arm.r[rn]); |
2755 |
ic->arg[2] = (size_t)(&cpu->cd.arm.r[rd]); |
ic->arg[2] = (size_t)(&cpu->cd.arm.r[rd]); |
2756 |
any_pc_reg = 0; |
any_pc_reg = 0; |
2757 |
if (rn == ARM_PC || rd == ARM_PC) |
if (rn == ARM_PC || rd == ARM_PC) |
2758 |
any_pc_reg = 1; |
any_pc_reg = 1; |
2759 |
|
|
2760 |
ic->f = arm_dpi_instr[condition_code + |
if (!any_pc_reg && regform && (iword & 0xfff) < ARM_PC) { |
2761 |
16 * secondary_opcode + (s_bit? 256 : 0) + |
ic->arg[1] = (size_t)(&cpu->cd.arm.r[rm]); |
2762 |
(any_pc_reg? 512 : 0) + (regform? 1024 : 0)]; |
ic->f = arm_dpi_instr_regshort[condition_code + |
2763 |
|
16 * secondary_opcode + (s_bit? 256 : 0)]; |
2764 |
|
} else |
2765 |
|
ic->f = arm_dpi_instr[condition_code + |
2766 |
|
16 * secondary_opcode + (s_bit? 256 : 0) + |
2767 |
|
(any_pc_reg? 512 : 0) + (regform? 1024 : 0)]; |
2768 |
|
|
2769 |
|
if (ic->f == instr(eor_regshort)) |
2770 |
|
cpu->cd.arm.combination_check = arm_combine_xchg; |
2771 |
if (iword == 0xe113000c) |
if (iword == 0xe113000c) |
2772 |
cpu->combination_check = arm_combine_netbsd_scanc; |
cpu->cd.arm.combination_check = |
2773 |
|
arm_combine_netbsd_scanc; |
2774 |
break; |
break; |
2775 |
|
|
2776 |
case 0x4: /* Load and store... */ |
case 0x4: /* Load and store... */ |
2799 |
fatal("Not a Load/store TODO\n"); |
fatal("Not a Load/store TODO\n"); |
2800 |
goto bad; |
goto bad; |
2801 |
} |
} |
2802 |
|
/* Special case: pc-relative load within the same page: */ |
2803 |
|
if (rn == ARM_PC && rd != ARM_PC && main_opcode < 6) { |
2804 |
|
int ofs = (addr & 0xfff) + 8, max = 0xffc; |
2805 |
|
int b_bit = iword & 0x00400000; |
2806 |
|
if (b_bit) |
2807 |
|
max = 0xfff; |
2808 |
|
if (u_bit) |
2809 |
|
ofs += (iword & 0xfff); |
2810 |
|
else |
2811 |
|
ofs -= (iword & 0xfff); |
2812 |
|
/* NOTE/TODO: This assumes 4KB pages, |
2813 |
|
it will not work with 1KB pages. */ |
2814 |
|
if (ofs >= 0 && ofs <= max) { |
2815 |
|
unsigned char *p; |
2816 |
|
unsigned char c[4]; |
2817 |
|
int len = b_bit? 1 : 4; |
2818 |
|
uint32_t x, a = (addr & 0xfffff000) | ofs; |
2819 |
|
/* ic->f = cond_instr(mov); */ |
2820 |
|
ic->f = arm_dpi_instr[condition_code + 16*0xd]; |
2821 |
|
ic->arg[2] = (size_t)(&cpu->cd.arm.r[rd]); |
2822 |
|
p = cpu->cd.arm.host_load[a >> 12]; |
2823 |
|
if (p != NULL) { |
2824 |
|
memcpy(c, p + (a & 0xfff), len); |
2825 |
|
} else { |
2826 |
|
if (!cpu->memory_rw(cpu, cpu->mem, a, |
2827 |
|
c, len, MEM_READ, CACHE_DATA)) { |
2828 |
|
fatal("to_be_translated(): " |
2829 |
|
"read failed X: TODO\n"); |
2830 |
|
goto bad; |
2831 |
|
} |
2832 |
|
} |
2833 |
|
if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
2834 |
|
x = c[0] + (c[1]<<8) + |
2835 |
|
(c[2]<<16) + (c[3]<<24); |
2836 |
|
else |
2837 |
|
x = c[3] + (c[2]<<8) + |
2838 |
|
(c[1]<<16) + (c[0]<<24); |
2839 |
|
if (b_bit) |
2840 |
|
x = c[0]; |
2841 |
|
ic->arg[1] = x; |
2842 |
|
} |
2843 |
|
} |
2844 |
|
if (iword == 0xe4b09004) |
2845 |
|
cpu->cd.arm.combination_check = |
2846 |
|
arm_combine_netbsd_copyin; |
2847 |
|
if (iword == 0xe4a17004) |
2848 |
|
cpu->cd.arm.combination_check = |
2849 |
|
arm_combine_netbsd_copyout; |
2850 |
break; |
break; |
2851 |
|
|
2852 |
case 0x8: /* Multiple load/store... (Block data transfer) */ |
case 0x8: /* Multiple load/store... (Block data transfer) */ |
2897 |
if (main_opcode == 0x0a) { |
if (main_opcode == 0x0a) { |
2898 |
ic->f = cond_instr(b); |
ic->f = cond_instr(b); |
2899 |
samepage_function = cond_instr(b_samepage); |
samepage_function = cond_instr(b_samepage); |
|
/* if (iword == 0xcafffffc) |
|
|
cpu->combination_check = arm_combine_test2; */ |
|
2900 |
if (iword == 0xcaffffed) |
if (iword == 0xcaffffed) |
2901 |
cpu->combination_check = |
cpu->cd.arm.combination_check = |
2902 |
arm_combine_netbsd_memset; |
arm_combine_netbsd_memset; |
2903 |
if (iword == 0xaafffff9) |
if (iword == 0xaafffff9) |
2904 |
cpu->combination_check = |
cpu->cd.arm.combination_check = |
2905 |
arm_combine_netbsd_memcpy; |
arm_combine_netbsd_memcpy; |
2906 |
} else { |
} else { |
2907 |
if (cpu->machine->show_trace_tree) { |
if (cpu->machine->show_trace_tree) { |
2914 |
} |
} |
2915 |
} |
} |
2916 |
|
|
2917 |
|
/* arg 1 = offset of current instruction */ |
2918 |
|
/* arg 2 = offset of the following instruction */ |
2919 |
|
ic->arg[1] = addr & 0xffc; |
2920 |
|
ic->arg[2] = (addr & 0xffc) + 4; |
2921 |
|
|
2922 |
ic->arg[0] = (iword & 0x00ffffff) << 2; |
ic->arg[0] = (iword & 0x00ffffff) << 2; |
2923 |
/* Sign-extend: */ |
/* Sign-extend: */ |
2924 |
if (ic->arg[0] & 0x02000000) |
if (ic->arg[0] & 0x02000000) |
2928 |
*/ |
*/ |
2929 |
ic->arg[0] = (int32_t)(ic->arg[0] + 8); |
ic->arg[0] = (int32_t)(ic->arg[0] + 8); |
2930 |
|
|
2931 |
/* Special case: branch within the same page: */ |
/* |
2932 |
|
* Special case: branch within the same page: |
2933 |
|
* |
2934 |
|
* arg[0] = addr of the arm_instr_call of the target |
2935 |
|
* arg[1] = addr of the next arm_instr_call. |
2936 |
|
*/ |
2937 |
{ |
{ |
2938 |
uint32_t mask_within_page = |
uint32_t mask_within_page = |
2939 |
((ARM_IC_ENTRIES_PER_PAGE-1) << |
((ARM_IC_ENTRIES_PER_PAGE-1) << |
2948 |
cpu->cd.arm.cur_ic_page + |
cpu->cd.arm.cur_ic_page + |
2949 |
((new_pc & mask_within_page) >> |
((new_pc & mask_within_page) >> |
2950 |
ARM_INSTR_ALIGNMENT_SHIFT)); |
ARM_INSTR_ALIGNMENT_SHIFT)); |
2951 |
|
ic->arg[1] = (size_t) ( |
2952 |
|
cpu->cd.arm.cur_ic_page + |
2953 |
|
(((addr & mask_within_page) + 4) >> |
2954 |
|
ARM_INSTR_ALIGNMENT_SHIFT)); |
2955 |
|
} else if (main_opcode == 0x0a) { |
2956 |
|
/* Special hack for a plain "b": */ |
2957 |
|
ic->arg[0] += ic->arg[1]; |
2958 |
} |
} |
2959 |
} |
} |
2960 |
|
|
2961 |
#if 0 |
if (main_opcode == 0xa && (condition_code <= 1 |
2962 |
/* Hm. This doesn't really increase performance. */ |
|| condition_code == 3 || condition_code == 8 |
2963 |
|
|| condition_code == 12 || condition_code == 13)) |
2964 |
|
cpu->cd.arm.combination_check = arm_combine_cmps_b; |
2965 |
|
|
2966 |
|
if (iword == 0x1afffffc) |
2967 |
|
cpu->cd.arm.combination_check = arm_combine_strlen; |
2968 |
|
|
2969 |
|
/* Hm. Does this really increase performance? */ |
2970 |
if (iword == 0x8afffffa) |
if (iword == 0x8afffffa) |
2971 |
cpu->combination_check = arm_combine_netbsd_cacheclean2; |
cpu->cd.arm.combination_check = |
2972 |
#endif |
arm_combine_netbsd_cacheclean2; |
2973 |
|
break; |
2974 |
|
|
2975 |
|
case 0xc: |
2976 |
|
case 0xd: |
2977 |
|
/* |
2978 |
|
* xxxx1100 0100nnnn ddddcccc oooommmm MCRR c,op,Rd,Rn,CRm |
2979 |
|
* xxxx1100 0101nnnn ddddcccc oooommmm MRRC c,op,Rd,Rn,CRm |
2980 |
|
*/ |
2981 |
|
if ((iword & 0x0fe00000) == 0x0c400000) { |
2982 |
|
fatal("MCRR/MRRC: TODO\n"); |
2983 |
|
goto bad; |
2984 |
|
} |
2985 |
|
|
2986 |
|
/* |
2987 |
|
* TODO: LDC/STC |
2988 |
|
* |
2989 |
|
* For now, treat as Undefined instructions. This causes e.g. |
2990 |
|
* Linux/ARM to emulate these instructions (floating point). |
2991 |
|
*/ |
2992 |
|
ic->f = cond_instr(und); |
2993 |
|
ic->arg[0] = addr & 0xfff; |
2994 |
break; |
break; |
2995 |
|
|
2996 |
case 0xe: |
case 0xe: |
3004 |
ic->f = cond_instr(cdp); |
ic->f = cond_instr(cdp); |
3005 |
} |
} |
3006 |
if (iword == 0xee070f9a) |
if (iword == 0xee070f9a) |
3007 |
cpu->combination_check = arm_combine_netbsd_cacheclean; |
cpu->cd.arm.combination_check = |
3008 |
|
arm_combine_netbsd_cacheclean; |
3009 |
break; |
break; |
3010 |
|
|
3011 |
case 0xf: |
case 0xf: |
3012 |
/* SWI: */ |
/* SWI: */ |
3013 |
/* Default handler: */ |
/* Default handler: */ |
3014 |
ic->f = cond_instr(swi); |
ic->f = cond_instr(swi); |
3015 |
if (iword == 0xef8c64be) { |
ic->arg[0] = addr & 0xfff; |
3016 |
|
if (iword == 0xef8c64eb) { |
3017 |
|
/* Hack for rebooting a machine: */ |
3018 |
|
ic->f = instr(reboot); |
3019 |
|
} else if (iword == 0xef8c64be) { |
3020 |
/* Hack for openfirmware prom emulation: */ |
/* Hack for openfirmware prom emulation: */ |
3021 |
ic->f = instr(openfirmware); |
ic->f = instr(openfirmware); |
3022 |
} else if (cpu->machine->userland_emul != NULL) { |
} else if (cpu->machine->userland_emul != NULL) { |