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More flags work (nw)

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This commit is contained in:
R. Belmont 2012-03-11 19:03:28 +00:00
parent b8f9903801
commit dc51f2b1c3
1 changed files with 8 additions and 6 deletions
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14
src/emu/cpu/powerpc/ppcdrc.c
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@ -3074,15 +3074,16 @@ static int generate_instruction_1f(powerpc_state *ppc, drcuml_block *block, comp
case 0x1eb: /* DIVWx */
case 0x3eb: /* DIVWOx */
UML_CMP(block, R32(G_RB(op)), 0x0); // cmp rb, #0
UML_JMPc(block, COND_NE, compiler->labelnum); // bne 0:
UML_JMPc(block, COND_NZ, compiler->labelnum); // bne 0:
UML_CMP(block, R32(G_RA(op)), 0x80000000); // cmp rb, #80000000
UML_JMPc(block, COND_AE, compiler->labelnum); // bae 0:
UML_MOV(block, I0, 0x0); // move i0, #0 (generate_flags needs result in i0)
UML_MOV(block, I0, 0x0); // move i0, #0
if (op & M_OE)
{
UML_OR(block, XERSO32, XERSO32, 0x1); // SO |= 1
}
UML_CMP(block, I0, 0x0); // force a flags update
UML_JMP(block, compiler->labelnum+3); // jmp 3:
UML_LABEL(block, compiler->labelnum++); // 0:
@ -3091,21 +3092,22 @@ static int generate_instruction_1f(powerpc_state *ppc, drcuml_block *block, comp
UML_JMPc(block, COND_Z, compiler->labelnum); // beq 1:
UML_CMP(block, R32(G_RB(op)), 0xffffffff); // cmp rb, #ffffffff
UML_JMPc(block, COND_NE, compiler->labelnum+1); // bne 2:
UML_JMPc(block, COND_NZ, compiler->labelnum+1); // bne 2:
UML_CMP(block, R32(G_RA(op)), 0x80000000); // cmp ra, #80000000
UML_JMPc(block, COND_NE, compiler->labelnum+1); // bne 2:
UML_JMPc(block, COND_NZ, compiler->labelnum+1); // bne 2:
UML_LABEL(block, compiler->labelnum++); // 1:
// do second branch
UML_MOV(block, I0, 0xffffffff); // move i0, #ffffffff (generate_flags needs result in i0)
UML_MOV(block, I0, 0xffffffff); // move i0, #ffffffff
if (op & M_OE)
{
UML_OR(block, XERSO32, XERSO32, 0x1); // SO |= 1
}
UML_CMP(block, I0, 0x0); // force a flags update
UML_JMP(block, compiler->labelnum+1); // jmp 3:
UML_LABEL(block, compiler->labelnum++); // 2:
UML_DIVS(block, I0, R32(G_RD(op)), R32(G_RA(op)), R32(G_RB(op))); // divs rd,rd,ra,rb
UML_DIVS(block, I0, R32(G_RD(op)), R32(G_RA(op)), R32(G_RB(op))); // divs i0,rd,ra,rb
UML_LABEL(block, compiler->labelnum++); // 3:
UML_MOV(block, R32(G_RD(op)), I0); // mov rd, I0