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The 286/386 interpreter now has its own variant of x86seg.c.

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This commit is contained in:
OBattler
2023-08-21 02:56:33 +02:00
parent 5ac598378f
commit 1d48363803
61 changed files with 596 additions and 260 deletions
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44
src/cpu/x86_ops_mov_seg.h
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@@ -178,13 +178,13 @@ opMOV_seg_w_a16(uint32_t fetchdat)
switch (rmdat & 0x38) {
case 0x00: /*ES*/
loadseg(new_seg, &cpu_state.seg_es);
op_loadseg(new_seg, &cpu_state.seg_es);
break;
case 0x18: /*DS*/
loadseg(new_seg, &cpu_state.seg_ds);
op_loadseg(new_seg, &cpu_state.seg_ds);
break;
case 0x10: /*SS*/
loadseg(new_seg, &cpu_state.seg_ss);
op_loadseg(new_seg, &cpu_state.seg_ss);
if (cpu_state.abrt)
return 1;
cpu_state.oldpc = cpu_state.pc;
@@ -198,10 +198,10 @@ opMOV_seg_w_a16(uint32_t fetchdat)
x86_opcodes[(fetchdat & 0xff) | cpu_state.op32](fetchdat >> 8);
return 1;
case 0x20: /*FS*/
loadseg(new_seg, &cpu_state.seg_fs);
op_loadseg(new_seg, &cpu_state.seg_fs);
break;
case 0x28: /*GS*/
loadseg(new_seg, &cpu_state.seg_gs);
op_loadseg(new_seg, &cpu_state.seg_gs);
break;
}
@@ -223,13 +223,13 @@ opMOV_seg_w_a32(uint32_t fetchdat)
switch (rmdat & 0x38) {
case 0x00: /*ES*/
loadseg(new_seg, &cpu_state.seg_es);
op_loadseg(new_seg, &cpu_state.seg_es);
break;
case 0x18: /*DS*/
loadseg(new_seg, &cpu_state.seg_ds);
op_loadseg(new_seg, &cpu_state.seg_ds);
break;
case 0x10: /*SS*/
loadseg(new_seg, &cpu_state.seg_ss);
op_loadseg(new_seg, &cpu_state.seg_ss);
if (cpu_state.abrt)
return 1;
cpu_state.oldpc = cpu_state.pc;
@@ -243,10 +243,10 @@ opMOV_seg_w_a32(uint32_t fetchdat)
x86_opcodes[(fetchdat & 0xff) | cpu_state.op32](fetchdat >> 8);
return 1;
case 0x20: /*FS*/
loadseg(new_seg, &cpu_state.seg_fs);
op_loadseg(new_seg, &cpu_state.seg_fs);
break;
case 0x28: /*GS*/
loadseg(new_seg, &cpu_state.seg_gs);
op_loadseg(new_seg, &cpu_state.seg_gs);
break;
}
@@ -269,7 +269,7 @@ opLDS_w_a16(uint32_t fetchdat)
seg = readmemw(easeg, cpu_state.eaaddr + 2);
if (cpu_state.abrt)
return 1;
loadseg(seg, &cpu_state.seg_ds);
op_loadseg(seg, &cpu_state.seg_ds);
if (cpu_state.abrt)
return 1;
cpu_state.regs[cpu_reg].w = addr;
@@ -292,7 +292,7 @@ opLDS_w_a32(uint32_t fetchdat)
seg = readmemw(easeg, cpu_state.eaaddr + 2);
if (cpu_state.abrt)
return 1;
loadseg(seg, &cpu_state.seg_ds);
op_loadseg(seg, &cpu_state.seg_ds);
if (cpu_state.abrt)
return 1;
cpu_state.regs[cpu_reg].w = addr;
@@ -315,7 +315,7 @@ opLDS_l_a16(uint32_t fetchdat)
seg = readmemw(easeg, cpu_state.eaaddr + 4);
if (cpu_state.abrt)
return 1;
loadseg(seg, &cpu_state.seg_ds);
op_loadseg(seg, &cpu_state.seg_ds);
if (cpu_state.abrt)
return 1;
cpu_state.regs[cpu_reg].l = addr;
@@ -338,7 +338,7 @@ opLDS_l_a32(uint32_t fetchdat)
seg = readmemw(easeg, cpu_state.eaaddr + 4);
if (cpu_state.abrt)
return 1;
loadseg(seg, &cpu_state.seg_ds);
op_loadseg(seg, &cpu_state.seg_ds);
if (cpu_state.abrt)
return 1;
cpu_state.regs[cpu_reg].l = addr;
@@ -362,7 +362,7 @@ opLSS_w_a16(uint32_t fetchdat)
seg = readmemw(easeg, cpu_state.eaaddr + 2);
if (cpu_state.abrt)
return 1;
loadseg(seg, &cpu_state.seg_ss);
op_loadseg(seg, &cpu_state.seg_ss);
if (cpu_state.abrt)
return 1;
cpu_state.regs[cpu_reg].w = addr;
@@ -385,7 +385,7 @@ opLSS_w_a32(uint32_t fetchdat)
seg = readmemw(easeg, cpu_state.eaaddr + 2);
if (cpu_state.abrt)
return 1;
loadseg(seg, &cpu_state.seg_ss);
op_loadseg(seg, &cpu_state.seg_ss);
if (cpu_state.abrt)
return 1;
cpu_state.regs[cpu_reg].w = addr;
@@ -408,7 +408,7 @@ opLSS_l_a16(uint32_t fetchdat)
seg = readmemw(easeg, cpu_state.eaaddr + 4);
if (cpu_state.abrt)
return 1;
loadseg(seg, &cpu_state.seg_ss);
op_loadseg(seg, &cpu_state.seg_ss);
if (cpu_state.abrt)
return 1;
cpu_state.regs[cpu_reg].l = addr;
@@ -431,7 +431,7 @@ opLSS_l_a32(uint32_t fetchdat)
seg = readmemw(easeg, cpu_state.eaaddr + 4);
if (cpu_state.abrt)
return 1;
loadseg(seg, &cpu_state.seg_ss);
op_loadseg(seg, &cpu_state.seg_ss);
if (cpu_state.abrt)
return 1;
cpu_state.regs[cpu_reg].l = addr;
@@ -454,7 +454,7 @@ opLSS_l_a32(uint32_t fetchdat)
seg = readmemw(easeg, cpu_state.eaaddr + 2); \
if (cpu_state.abrt) \
return 1; \
loadseg(seg, &sel); \
op_loadseg(seg, &sel); \
if (cpu_state.abrt) \
return 1; \
cpu_state.regs[cpu_reg].w = addr; \
@@ -476,7 +476,7 @@ opLSS_l_a32(uint32_t fetchdat)
seg = readmemw(easeg, cpu_state.eaaddr + 2); \
if (cpu_state.abrt) \
return 1; \
loadseg(seg, &sel); \
op_loadseg(seg, &sel); \
if (cpu_state.abrt) \
return 1; \
cpu_state.regs[cpu_reg].w = addr; \
@@ -499,7 +499,7 @@ opLSS_l_a32(uint32_t fetchdat)
seg = readmemw(easeg, cpu_state.eaaddr + 4); \
if (cpu_state.abrt) \
return 1; \
loadseg(seg, &sel); \
op_loadseg(seg, &sel); \
if (cpu_state.abrt) \
return 1; \
cpu_state.regs[cpu_reg].l = addr; \
@@ -522,7 +522,7 @@ opLSS_l_a32(uint32_t fetchdat)
seg = readmemw(easeg, cpu_state.eaaddr + 4); \
if (cpu_state.abrt) \
return 1; \
loadseg(seg, &sel); \
op_loadseg(seg, &sel); \
if (cpu_state.abrt) \
return 1; \
cpu_state.regs[cpu_reg].l = addr; \