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Rewrote the disc sector poller again for simplified code and more accuracy;

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Floppy formats are now accurately timed and also more accurately implemented;
Applied all mainline PCem commits.
This commit is contained in:
OBattler
2016-08-20 03:40:12 +02:00
parent 24a6ab13fb
commit a924f37f43
51 changed files with 2471 additions and 1302 deletions
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27
src/x86_ops_prefix.h
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@@ -1,6 +1,3 @@
/* Copyright holders: Sarah Walker
see COPYING for more details
*/
#define op_seg(name, seg) \
static int op ## name ## _w_a16(uint32_t fetchdat) \
{ \
@@ -8,8 +5,8 @@ static int op ## name ## _w_a16(uint32_t fetchdat) \
if (abrt) return 1; \
cpu_state.pc++; \
\
ea_seg = &seg; \
ssegs = 1; \
cpu_state.ea_seg = &seg; \
cpu_state.ssegs = 1; \
CLOCK_CYCLES(4); \
\
return x86_opcodes[fetchdat & 0xff](fetchdat >> 8); \
@@ -21,8 +18,8 @@ static int op ## name ## _l_a16(uint32_t fetchdat) \
if (abrt) return 1; \
cpu_state.pc++; \
\
ea_seg = &seg; \
ssegs = 1; \
cpu_state.ea_seg = &seg; \
cpu_state.ssegs = 1; \
CLOCK_CYCLES(4); \
\
return x86_opcodes[(fetchdat & 0xff) | 0x100](fetchdat >> 8); \
@@ -34,8 +31,8 @@ static int op ## name ## _w_a32(uint32_t fetchdat) \
if (abrt) return 1; \
cpu_state.pc++; \
\
ea_seg = &seg; \
ssegs = 1; \
cpu_state.ea_seg = &seg; \
cpu_state.ssegs = 1; \
CLOCK_CYCLES(4); \
\
return x86_opcodes[(fetchdat & 0xff) | 0x200](fetchdat >> 8); \
@@ -47,8 +44,8 @@ static int op ## name ## _l_a32(uint32_t fetchdat) \
if (abrt) return 1; \
cpu_state.pc++; \
\
ea_seg = &seg; \
ssegs = 1; \
cpu_state.ea_seg = &seg; \
cpu_state.ssegs = 1; \
CLOCK_CYCLES(4); \
\
return x86_opcodes[(fetchdat & 0xff) | 0x300](fetchdat >> 8); \
@@ -67,9 +64,9 @@ static int op_66(uint32_t fetchdat) /*Data size select*/
if (abrt) return 1;
cpu_state.pc++;
op32 = ((use32 & 0x100) ^ 0x100) | (op32 & 0x200);
cpu_state.op32 = ((use32 & 0x100) ^ 0x100) | (cpu_state.op32 & 0x200);
CLOCK_CYCLES(2);
return x86_opcodes[(fetchdat & 0xff) | op32](fetchdat >> 8);
return x86_opcodes[(fetchdat & 0xff) | cpu_state.op32](fetchdat >> 8);
}
static int op_67(uint32_t fetchdat) /*Address size select*/
{
@@ -77,7 +74,7 @@ static int op_67(uint32_t fetchdat) /*Address size select*/
if (abrt) return 1;
cpu_state.pc++;
op32 = ((use32 & 0x200) ^ 0x200) | (op32 & 0x100);
cpu_state.op32 = ((use32 & 0x200) ^ 0x200) | (cpu_state.op32 & 0x100);
CLOCK_CYCLES(2);
return x86_opcodes[(fetchdat & 0xff) | op32](fetchdat >> 8);
return x86_opcodes[(fetchdat & 0xff) | cpu_state.op32](fetchdat >> 8);
}