80486DX2-66/86Box-fork
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LDS, LSS, LES, LFS, and LGS instructions now perform segment limit and present bit checks.

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OBattler
2021-08-29 13:34:51 +02:00
parent b0cb4d974c
commit 09ff45c394
1 changed files with 12 additions and 0 deletions
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12
src/cpu/x86_ops_mov_seg.h
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@@ -231,6 +231,7 @@ static int opLDS_w_a16(uint32_t fetchdat)
fetch_ea_16(fetchdat);
ILLEGAL_ON(cpu_mod == 3);
SEG_CHECK_READ(cpu_state.ea_seg);
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state. eaaddr + 3);
addr = readmemw(easeg, cpu_state.eaaddr);
seg = readmemw(easeg, cpu_state.eaaddr + 2); if (cpu_state.abrt) return 1;
loadseg(seg, &cpu_state.seg_ds); if (cpu_state.abrt) return 1;
@@ -247,6 +248,7 @@ static int opLDS_w_a32(uint32_t fetchdat)
fetch_ea_32(fetchdat);
ILLEGAL_ON(cpu_mod == 3);
SEG_CHECK_READ(cpu_state.ea_seg);
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state. eaaddr + 3);
addr = readmemw(easeg, cpu_state.eaaddr);
seg = readmemw(easeg, cpu_state.eaaddr + 2); if (cpu_state.abrt) return 1;
loadseg(seg, &cpu_state.seg_ds); if (cpu_state.abrt) return 1;
@@ -264,6 +266,7 @@ static int opLDS_l_a16(uint32_t fetchdat)
fetch_ea_16(fetchdat);
ILLEGAL_ON(cpu_mod == 3);
SEG_CHECK_READ(cpu_state.ea_seg);
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state. eaaddr + 5);
addr = readmeml(easeg, cpu_state.eaaddr);
seg = readmemw(easeg, cpu_state.eaaddr + 4); if (cpu_state.abrt) return 1;
loadseg(seg, &cpu_state.seg_ds); if (cpu_state.abrt) return 1;
@@ -281,6 +284,7 @@ static int opLDS_l_a32(uint32_t fetchdat)
fetch_ea_32(fetchdat);
ILLEGAL_ON(cpu_mod == 3);
SEG_CHECK_READ(cpu_state.ea_seg);
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state. eaaddr + 5);
addr = readmeml(easeg, cpu_state.eaaddr);
seg = readmemw(easeg, cpu_state.eaaddr + 4); if (cpu_state.abrt) return 1;
loadseg(seg, &cpu_state.seg_ds); if (cpu_state.abrt) return 1;
@@ -298,6 +302,7 @@ static int opLSS_w_a16(uint32_t fetchdat)
fetch_ea_16(fetchdat);
ILLEGAL_ON(cpu_mod == 3);
SEG_CHECK_READ(cpu_state.ea_seg);
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3);
addr = readmemw(easeg, cpu_state.eaaddr);
seg = readmemw(easeg, cpu_state.eaaddr + 2); if (cpu_state.abrt) return 1;
loadseg(seg, &cpu_state.seg_ss); if (cpu_state.abrt) return 1;
@@ -314,6 +319,7 @@ static int opLSS_w_a32(uint32_t fetchdat)
fetch_ea_32(fetchdat);
ILLEGAL_ON(cpu_mod == 3);
SEG_CHECK_READ(cpu_state.ea_seg);
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3);
addr = readmemw(easeg, cpu_state.eaaddr);
seg = readmemw(easeg, cpu_state.eaaddr + 2); if (cpu_state.abrt) return 1;
loadseg(seg, &cpu_state.seg_ss); if (cpu_state.abrt) return 1;
@@ -331,6 +337,7 @@ static int opLSS_l_a16(uint32_t fetchdat)
fetch_ea_16(fetchdat);
ILLEGAL_ON(cpu_mod == 3);
SEG_CHECK_READ(cpu_state.ea_seg);
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 5);
addr = readmeml(easeg, cpu_state.eaaddr);
seg = readmemw(easeg, cpu_state.eaaddr + 4); if (cpu_state.abrt) return 1;
loadseg(seg, &cpu_state.seg_ss); if (cpu_state.abrt) return 1;
@@ -348,6 +355,7 @@ static int opLSS_l_a32(uint32_t fetchdat)
fetch_ea_32(fetchdat);
ILLEGAL_ON(cpu_mod == 3);
SEG_CHECK_READ(cpu_state.ea_seg);
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 5);
addr = readmeml(easeg, cpu_state.eaaddr);
seg = readmemw(easeg, cpu_state.eaaddr + 4); if (cpu_state.abrt) return 1;
loadseg(seg, &cpu_state.seg_ss); if (cpu_state.abrt) return 1;
@@ -366,6 +374,7 @@ static int opLSS_l_a32(uint32_t fetchdat)
fetch_ea_16(fetchdat); \
SEG_CHECK_READ(cpu_state.ea_seg); \
ILLEGAL_ON(cpu_mod == 3); \
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3); \
addr = readmemw(easeg, cpu_state.eaaddr); \
seg = readmemw(easeg, cpu_state.eaaddr + 2); if (cpu_state.abrt) return 1; \
loadseg(seg, &sel); if (cpu_state.abrt) return 1; \
@@ -383,6 +392,7 @@ static int opLSS_l_a32(uint32_t fetchdat)
fetch_ea_32(fetchdat); \
SEG_CHECK_READ(cpu_state.ea_seg); \
ILLEGAL_ON(cpu_mod == 3); \
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 3); \
addr = readmemw(easeg, cpu_state.eaaddr); \
seg = readmemw(easeg, cpu_state.eaaddr + 2); if (cpu_state.abrt) return 1; \
loadseg(seg, &sel); if (cpu_state.abrt) return 1; \
@@ -401,6 +411,7 @@ static int opLSS_l_a32(uint32_t fetchdat)
fetch_ea_16(fetchdat); \
SEG_CHECK_READ(cpu_state.ea_seg); \
ILLEGAL_ON(cpu_mod == 3); \
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 5); \
addr = readmeml(easeg, cpu_state.eaaddr); \
seg = readmemw(easeg, cpu_state.eaaddr + 4); if (cpu_state.abrt) return 1; \
loadseg(seg, &sel); if (cpu_state.abrt) return 1; \
@@ -419,6 +430,7 @@ static int opLSS_l_a32(uint32_t fetchdat)
fetch_ea_32(fetchdat); \
SEG_CHECK_READ(cpu_state.ea_seg); \
ILLEGAL_ON(cpu_mod == 3); \
CHECK_READ(cpu_state.ea_seg, cpu_state.eaaddr, cpu_state.eaaddr + 5); \
addr = readmeml(easeg, cpu_state.eaaddr); \
seg = readmemw(easeg, cpu_state.eaaddr + 4); if (cpu_state.abrt) return 1; \
loadseg(seg, &sel); if (cpu_state.abrt) return 1; \