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dpavlin |
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(Sorry, this is still in Swedish.) |
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Ide: |
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# Kommentar. Tomma rader ignoreras också. |
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oaddr orig |
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lnamn label |
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anamn_eller_värde assemblera värdet "namn_eller_värde" |
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s"string" ??? |
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dnev1 nev2 assemblera värdet "nev1 - nev2 - x" där |
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x = 1 om nev2 < nev1, annars x = 0 |
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En vanlig fil kan t ex börja med: |
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# PC |
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o0 |
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lpc |
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amain |
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# MIPS registers |
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la0 |
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a0 |
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la1 |
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a0 |
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la2 |
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a0 |
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la3 |
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a0 |
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lv0 |
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a0 |
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# Function: main |
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lmain |
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ar0 |
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ar0 |
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ar0 |
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osv... |
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x := 0 Clear contents of x CLEAR x |
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Ax |
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Ax |
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Ax |
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x2 := x1 Copy value in x1 to x2 MOVE x1 TO x2 |
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Ax2 |
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Ax2 |
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Ax2 ; clear x2 |
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Ascratch |
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Ascratch |
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Ax1 |
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Ascratch |
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Ascratch |
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Ax2 |
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Ascratch |
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pc := label JMP label |
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Ascratch |
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Ascratch |
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Ascratch |
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Dl? label |
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Ll? |
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Apc |
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if acc==0 then pc := label JZ label |
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Azero |
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Dlabel l? |
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Azero |
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Azero |
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Ll? |
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Apc |
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if x==0 then pc := label JRZ x, label |
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Azero |
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Azero |
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Azero |
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Ax |
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Azero |
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Dlabel l? |
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Azero |
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Azero |
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Ll? |
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Apc |
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x2 -= x1 SUB x1 FROM x2 |
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Ascratch |
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Ascratch |
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Ascratch |
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Ax1 |
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Ax2 |
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Ascratch |
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Ascratch |
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Ascratch ; maybe not neccessary? |
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x2 += x1 ADD x1 TO x2 |
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Ascratch2 |
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Ascratch2 |
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Ascratch2 |
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Ax1 |
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Ascratch2 ; scratch2 = -x1 |
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Ascratch |
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Ascratch |
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Ascratch |
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Ascratch2 |
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Ax2 ; x2 = x2 - (-x1) |
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Ascratch |
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Ascratch |
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Ascratch ; maybe not neccessary? |
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*a = data STORE data AT a |
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Al1 |
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Al1 |
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Al1 ; clear l1 |
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Ascratch |
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Ascratch |
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Aa |
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Ascratch |
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Ascratch |
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Al1 ; word at l1 = a |
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Ascratch |
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Al2 |
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Al2 |
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Al2 ; clear l2 |
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Ascratch |
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Ascratch |
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Aa |
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Ascratch |
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Ascratch |
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Al2 ; word at l2 = a |
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Ascratch |
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Al3 |
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Al3 |
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Al3 ; clear l3 |
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Ascratch |
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Ascratch |
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Aa |
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Ascratch |
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Ascratch |
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Al3 ; word at l3 = a |
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Ascratch |
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Al4 |
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Al4 |
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Al4 ; clear l4 |
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Ascratch |
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Ascratch |
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Aa |
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Ascratch |
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Ascratch |
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Al4 ; word at l4 = a |
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Ascratch |
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Ll1 |
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A0 ; this will be overwritten with 'a' |
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Ll2 |
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A0 ; this will be overwritten with 'a' |
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Ll3 |
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A0 ; this will be overwritten with 'a' |
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Ascratch |
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Ascratch |
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Adata |
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Ascratch |
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Ascratch |
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Ll4 |
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A0 ; this will be overwritten with 'a' |
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Ascratch |
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reg = *a LOAD reg FROM ADDRESS a |
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Al1 |
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Al1 |
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Al1 ; clear contents of l1 |
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Ascratch |
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Ascratch |
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Aa |
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Ascratch |
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Ascratch |
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Al1 ; word at l1 is now 'a' |
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Ascratch |
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Areg |
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Areg |
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Areg ; clear reg |
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Ascratch |
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Ascratch |
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Ll1 |
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A0 ; this will be overwritten with 'a' |
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Ascratch |
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Ascratch |
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Areg |
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Ascratch |
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----------------------------------------------------------------- |
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Översättning av MIPS-instruktioner till RSSB: |
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MIPS: RSSB: |
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b label JMP label |
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move r1, r2 MOVE |
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load word LOAD |
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store word STORE |
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add r1,r2 ADD |
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sub r1,r2 SUB |
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Halvjobbiga: |
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de som kräver indirekta adresser osv |
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Jobbiga: |
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mul |
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and |
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or |
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not (?) |
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xor (?) |
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comparision < > == |
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