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Added lazy flags for ROL and ROR.

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This commit is contained in:
SarahW 2019-03-30 14:41:02 +00:00
commit e2a1ae696f
3 changed files with 85 additions and 26 deletions
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26
src/x86_ops_shift.h
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@ -8,18 +8,14 @@
case 0x00: /*ROL b, c*/ \
temp = (temp << (c & 7)) | (temp >> (8-(c & 7))); \
seteab(temp); if (cpu_state.abrt) return 1; \
cpu_state.flags &= ~(C_FLAG | V_FLAG); \
if (temp & 1) cpu_state.flags |= C_FLAG; \
if ((temp ^ (temp >> 7)) & 1) cpu_state.flags |= V_FLAG; \
set_flags_rotate(FLAGS_ROL8, temp); \
CLOCK_CYCLES((cpu_mod == 3) ? 3 : 7); \
PREFETCH_RUN((cpu_mod == 3) ? 3 : 7, 2, rmdat, (cpu_mod == 3) ? 0:1,0,(cpu_mod == 3) ? 0:1,0, ea32); \
break; \
case 0x08: /*ROR b,CL*/ \
temp = (temp >> (c & 7)) | (temp << (8-(c & 7))); \
seteab(temp); if (cpu_state.abrt) return 1; \
cpu_state.flags &= ~(C_FLAG | V_FLAG); \
if (temp & 0x80) cpu_state.flags |= C_FLAG; \
if ((temp ^ (temp >> 1)) & 0x40) cpu_state.flags |= V_FLAG; \
seteab(temp); if (cpu_state.abrt) return 1; \
set_flags_rotate(FLAGS_ROR8, temp); \
CLOCK_CYCLES((cpu_mod == 3) ? 3 : 7); \
PREFETCH_RUN((cpu_mod == 3) ? 3 : 7, 2, rmdat, (cpu_mod == 3) ? 0:1,0,(cpu_mod == 3) ? 0:1,0, ea32); \
break; \
@ -89,18 +85,14 @@
case 0x00: /*ROL w, c*/ \
temp = (temp << (c & 15)) | (temp >> (16-(c & 15))); \
seteaw(temp); if (cpu_state.abrt) return 1; \
cpu_state.flags &= ~(C_FLAG | V_FLAG); \
if (temp & 1) cpu_state.flags |= C_FLAG; \
if ((temp ^ (temp >> 15)) & 1) cpu_state.flags |= V_FLAG; \
set_flags_rotate(FLAGS_ROL16, temp); \
CLOCK_CYCLES((cpu_mod == 3) ? 3 : 7); \
PREFETCH_RUN((cpu_mod == 3) ? 3 : 7, 2, rmdat, (cpu_mod == 3) ? 0:1,0,(cpu_mod == 3) ? 0:1,0, ea32); \
break; \
case 0x08: /*ROR w,CL*/ \
temp = (temp >> (c & 15)) | (temp << (16-(c & 15))); \
seteaw(temp); if (cpu_state.abrt) return 1; \
cpu_state.flags &= ~(C_FLAG | V_FLAG); \
if (temp & 0x8000) cpu_state.flags |= C_FLAG; \
if ((temp ^ (temp >> 1)) & 0x4000) cpu_state.flags |= V_FLAG; \
set_flags_rotate(FLAGS_ROR16, temp); \
CLOCK_CYCLES((cpu_mod == 3) ? 3 : 7); \
PREFETCH_RUN((cpu_mod == 3) ? 3 : 7, 2, rmdat, (cpu_mod == 3) ? 0:1,0,(cpu_mod == 3) ? 0:1,0, ea32); \
break; \
@ -170,18 +162,14 @@
case 0x00: /*ROL l, c*/ \
temp = (temp << c) | (temp >> (32-c)); \
seteal(temp); if (cpu_state.abrt) return 1; \
cpu_state.flags &= ~(C_FLAG | V_FLAG); \
if (temp & 1) cpu_state.flags |= C_FLAG; \
if ((temp ^ (temp >> 31)) & 1) cpu_state.flags |= V_FLAG; \
set_flags_rotate(FLAGS_ROL32, temp); \
CLOCK_CYCLES((cpu_mod == 3) ? 3 : 7); \
PREFETCH_RUN((cpu_mod == 3) ? 3 : 7, 2, rmdat, (cpu_mod == 3) ? 0:1,0,(cpu_mod == 3) ? 0:1,0, ea32); \
break; \
case 0x08: /*ROR l,CL*/ \
temp = (temp >> c) | (temp << (32-c)); \
seteal(temp); if (cpu_state.abrt) return 1; \
cpu_state.flags &= ~(C_FLAG | V_FLAG); \
if (temp & 0x80000000) cpu_state.flags |= C_FLAG; \
if ((temp ^ (temp >> 1)) & 0x40000000) cpu_state.flags |= V_FLAG; \
set_flags_rotate(FLAGS_ROR32, temp); \
CLOCK_CYCLES((cpu_mod == 3) ? 3 : 7); \
PREFETCH_RUN((cpu_mod == 3) ? 3 : 7, 2, rmdat, (cpu_mod == 3) ? 0:1,0,(cpu_mod == 3) ? 0:1,0, ea32); \
break; \