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Added prefetch timing approximation for 286/386 CPUs, with configurable memory timing.

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This commit is contained in:
SarahW 2016-11-25 21:32:02 +00:00
commit 1b73963997
33 changed files with 1139 additions and 261 deletions
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6
src/386_ops.h
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@ -153,13 +153,15 @@ static int op0F_w_a16(uint32_t fetchdat)
{
int opcode = fetchdat & 0xff;
cpu_state.pc++;
PREFETCH_PREFIX();
return x86_opcodes_0f[opcode](fetchdat >> 8);
}
static int op0F_l_a16(uint32_t fetchdat)
{
int opcode = fetchdat & 0xff;
cpu_state.pc++;
PREFETCH_PREFIX();
return x86_opcodes_0f[opcode | 0x100](fetchdat >> 8);
}
@ -167,6 +169,7 @@ static int op0F_w_a32(uint32_t fetchdat)
{
int opcode = fetchdat & 0xff;
cpu_state.pc++;
PREFETCH_PREFIX();
return x86_opcodes_0f[opcode | 0x200](fetchdat >> 8);
}
@ -174,6 +177,7 @@ static int op0F_l_a32(uint32_t fetchdat)
{
int opcode = fetchdat & 0xff;
cpu_state.pc++;
PREFETCH_PREFIX();
return x86_opcodes_0f[opcode | 0x300](fetchdat >> 8);
}