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Add emulation of System Management Mode.

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This commit is contained in:
SarahW 2020-10-31 20:30:10 +00:00
commit 0cbbd22c88
8 changed files with 295 additions and 38 deletions
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28
src/x86_ops_io.h
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@ -5,6 +5,8 @@ static int opIN_AL_imm(uint32_t fetchdat)
AL = inb(port);
CLOCK_CYCLES(12);
PREFETCH_RUN(12, 2, -1, 1,0,0,0, 0);
if (cpu_state.smi_pending)
return 1;
if (nmi && nmi_enable && nmi_mask)
return 1;
return 0;
@ -17,6 +19,8 @@ static int opIN_AX_imm(uint32_t fetchdat)
AX = inw(port);
CLOCK_CYCLES(12);
PREFETCH_RUN(12, 2, -1, 1,0,0,0, 0);
if (cpu_state.smi_pending)
return 1;
if (nmi && nmi_enable && nmi_mask)
return 1;
return 0;
@ -31,6 +35,8 @@ static int opIN_EAX_imm(uint32_t fetchdat)
EAX = inl(port);
CLOCK_CYCLES(12);
PREFETCH_RUN(12, 2, -1, 0,1,0,0, 0);
if (cpu_state.smi_pending)
return 1;
if (nmi && nmi_enable && nmi_mask)
return 1;
return 0;
@ -43,10 +49,12 @@ static int opOUT_AL_imm(uint32_t fetchdat)
outb(port, AL);
CLOCK_CYCLES(10);
PREFETCH_RUN(10, 2, -1, 0,0,1,0, 0);
if (port == 0x64)
return x86_was_reset;
if (cpu_state.smi_pending)
return 1;
if (nmi && nmi_enable && nmi_mask)
return 1;
if (port == 0x64)
return x86_was_reset;
return 0;
}
static int opOUT_AX_imm(uint32_t fetchdat)
@ -57,6 +65,8 @@ static int opOUT_AX_imm(uint32_t fetchdat)
outw(port, AX);
CLOCK_CYCLES(10);
PREFETCH_RUN(10, 2, -1, 0,0,1,0, 0);
if (cpu_state.smi_pending)
return 1;
if (nmi && nmi_enable && nmi_mask)
return 1;
return 0;
@ -71,6 +81,8 @@ static int opOUT_EAX_imm(uint32_t fetchdat)
outl(port, EAX);
CLOCK_CYCLES(10);
PREFETCH_RUN(10, 2, -1, 0,0,0,1, 0);
if (cpu_state.smi_pending)
return 1;
if (nmi && nmi_enable && nmi_mask)
return 1;
return 0;
@ -82,6 +94,8 @@ static int opIN_AL_DX(uint32_t fetchdat)
AL = inb(DX);
CLOCK_CYCLES(12);
PREFETCH_RUN(12, 1, -1, 1,0,0,0, 0);
if (cpu_state.smi_pending)
return 1;
if (nmi && nmi_enable && nmi_mask)
return 1;
return 0;
@ -93,6 +107,8 @@ static int opIN_AX_DX(uint32_t fetchdat)
AX = inw(DX);
CLOCK_CYCLES(12);
PREFETCH_RUN(12, 1, -1, 1,0,0,0, 0);
if (cpu_state.smi_pending)
return 1;
if (nmi && nmi_enable && nmi_mask)
return 1;
return 0;
@ -106,6 +122,8 @@ static int opIN_EAX_DX(uint32_t fetchdat)
EAX = inl(DX);
CLOCK_CYCLES(12);
PREFETCH_RUN(12, 1, -1, 0,1,0,0, 0);
if (cpu_state.smi_pending)
return 1;
if (nmi && nmi_enable && nmi_mask)
return 1;
return 0;
@ -117,6 +135,8 @@ static int opOUT_AL_DX(uint32_t fetchdat)
outb(DX, AL);
CLOCK_CYCLES(11);
PREFETCH_RUN(11, 1, -1, 0,0,1,0, 0);
if (cpu_state.smi_pending)
return 1;
if (nmi && nmi_enable && nmi_mask)
return 1;
return x86_was_reset;
@ -129,6 +149,8 @@ static int opOUT_AX_DX(uint32_t fetchdat)
outw(DX, AX);
CLOCK_CYCLES(11);
PREFETCH_RUN(11, 1, -1, 0,0,1,0, 0);
if (cpu_state.smi_pending)
return 1;
if (nmi && nmi_enable && nmi_mask)
return 1;
return 0;
@ -141,6 +163,8 @@ static int opOUT_EAX_DX(uint32_t fetchdat)
check_io_perm(DX + 3);
outl(DX, EAX);
PREFETCH_RUN(11, 1, -1, 0,0,0,1, 0);
if (cpu_state.smi_pending)
return 1;
if (nmi && nmi_enable && nmi_mask)
return 1;
return 0;