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Include delay slots in checksum calculations.

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Fixes Bomberman N64 boot.
This commit is contained in:
Aaron Giles 2011-01-04 04:34:10 +00:00
parent a18425d33f
commit a5fff9c20c
1 changed files with 8 additions and 0 deletions
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8
src/emu/cpu/mips/mips3drc.c
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@ -1556,6 +1556,14 @@ static void generate_checksum_block(mips3_state *mips3, drcuml_block *block, com
UML_LOAD(block, IREG(1), base, IMM(0), DWORD); // load i1,base,dword
UML_ADD(block, IREG(0), IREG(0), IREG(1)); // add i0,i0,i1
sum += curdesc->opptr.l[0];
if (curdesc->delay != NULL && (curdesc == seqlast || (curdesc->next != NULL && curdesc->next->physpc != curdesc->delay->physpc)))
{
base = mips3->direct->read_decrypted_ptr(curdesc->delay->physpc);
UML_LOAD(block, IREG(1), base, IMM(0), DWORD); // load i1,base,dword
UML_ADD(block, IREG(0), IREG(0), IREG(1)); // add i0,i0,i1
sum += curdesc->delay->opptr.l[0];
}
}
UML_CMP(block, IREG(0), IMM(sum)); // cmp i0,sum
UML_EXHc(block, IF_NE, mips3->impstate->nocode, IMM(epc(seqhead))); // exne nocode,seqhead->pc