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Perform NULL segment checks upfront in opcode handlers, rather than on every memory access.

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This removes the need to pass the segment to readmem*l()/writemem*l().
This commit is contained in:
SarahW 2018-07-18 22:10:18 +01:00
commit 0f0a1c3223
31 changed files with 976 additions and 325 deletions
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4
src/x86_ops_mmx_pack.h
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@ -12,6 +12,7 @@ static int opPUNPCKLDQ_a16(uint32_t fetchdat)
{
uint32_t src;
SEG_CHECK_READ(cpu_state.ea_seg);
src = readmeml(easeg, cpu_state.eaaddr); if (cpu_state.abrt) return 0;
cpu_state.MM[cpu_reg].l[1] = src;
@ -32,7 +33,8 @@ static int opPUNPCKLDQ_a32(uint32_t fetchdat)
else
{
uint32_t src;
SEG_CHECK_READ(cpu_state.ea_seg);
src = readmeml(easeg, cpu_state.eaaddr); if (cpu_state.abrt) return 0;
cpu_state.MM[cpu_reg].l[1] = src;