2016-08-14 22:07:17 -04:00
|
|
|
/* Copyright holders: Sarah Walker
|
|
|
|
|
see COPYING for more details
|
|
|
|
|
*/
|
2016-06-26 00:34:39 +02:00
|
|
|
#define op_seg(name, seg) \
|
|
|
|
|
static int op ## name ## _w_a16(uint32_t fetchdat) \
|
|
|
|
|
{ \
|
|
|
|
|
fetchdat = fastreadl(cs + cpu_state.pc); \
|
|
|
|
|
if (abrt) return 1; \
|
|
|
|
|
cpu_state.pc++; \
|
|
|
|
|
\
|
|
|
|
|
ea_seg = &seg; \
|
|
|
|
|
ssegs = 1; \
|
|
|
|
|
CLOCK_CYCLES(4); \
|
|
|
|
|
\
|
|
|
|
|
return x86_opcodes[fetchdat & 0xff](fetchdat >> 8); \
|
|
|
|
|
} \
|
|
|
|
|
\
|
|
|
|
|
static int op ## name ## _l_a16(uint32_t fetchdat) \
|
|
|
|
|
{ \
|
|
|
|
|
fetchdat = fastreadl(cs + cpu_state.pc); \
|
|
|
|
|
if (abrt) return 1; \
|
|
|
|
|
cpu_state.pc++; \
|
|
|
|
|
\
|
|
|
|
|
ea_seg = &seg; \
|
|
|
|
|
ssegs = 1; \
|
|
|
|
|
CLOCK_CYCLES(4); \
|
|
|
|
|
\
|
|
|
|
|
return x86_opcodes[(fetchdat & 0xff) | 0x100](fetchdat >> 8); \
|
|
|
|
|
} \
|
|
|
|
|
\
|
|
|
|
|
static int op ## name ## _w_a32(uint32_t fetchdat) \
|
|
|
|
|
{ \
|
|
|
|
|
fetchdat = fastreadl(cs + cpu_state.pc); \
|
|
|
|
|
if (abrt) return 1; \
|
|
|
|
|
cpu_state.pc++; \
|
|
|
|
|
\
|
|
|
|
|
ea_seg = &seg; \
|
|
|
|
|
ssegs = 1; \
|
|
|
|
|
CLOCK_CYCLES(4); \
|
|
|
|
|
\
|
|
|
|
|
return x86_opcodes[(fetchdat & 0xff) | 0x200](fetchdat >> 8); \
|
|
|
|
|
} \
|
|
|
|
|
\
|
|
|
|
|
static int op ## name ## _l_a32(uint32_t fetchdat) \
|
|
|
|
|
{ \
|
|
|
|
|
fetchdat = fastreadl(cs + cpu_state.pc); \
|
|
|
|
|
if (abrt) return 1; \
|
|
|
|
|
cpu_state.pc++; \
|
|
|
|
|
\
|
|
|
|
|
ea_seg = &seg; \
|
|
|
|
|
ssegs = 1; \
|
|
|
|
|
CLOCK_CYCLES(4); \
|
|
|
|
|
\
|
|
|
|
|
return x86_opcodes[(fetchdat & 0xff) | 0x300](fetchdat >> 8); \
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
op_seg(CS, _cs)
|
|
|
|
|
op_seg(DS, _ds)
|
|
|
|
|
op_seg(ES, _es)
|
|
|
|
|
op_seg(FS, _fs)
|
|
|
|
|
op_seg(GS, _gs)
|
|
|
|
|
op_seg(SS, _ss)
|
|
|
|
|
|
|
|
|
|
static int op_66(uint32_t fetchdat) /*Data size select*/
|
|
|
|
|
{
|
|
|
|
|
fetchdat = fastreadl(cs + cpu_state.pc);
|
|
|
|
|
if (abrt) return 1;
|
|
|
|
|
cpu_state.pc++;
|
|
|
|
|
|
|
|
|
|
op32 = ((use32 & 0x100) ^ 0x100) | (op32 & 0x200);
|
|
|
|
|
CLOCK_CYCLES(2);
|
|
|
|
|
return x86_opcodes[(fetchdat & 0xff) | op32](fetchdat >> 8);
|
|
|
|
|
}
|
|
|
|
|
static int op_67(uint32_t fetchdat) /*Address size select*/
|
|
|
|
|
{
|
|
|
|
|
fetchdat = fastreadl(cs + cpu_state.pc);
|
|
|
|
|
if (abrt) return 1;
|
|
|
|
|
cpu_state.pc++;
|
|
|
|
|
|
|
|
|
|
op32 = ((use32 & 0x200) ^ 0x200) | (op32 & 0x100);
|
|
|
|
|
CLOCK_CYCLES(2);
|
|
|
|
|
return x86_opcodes[(fetchdat & 0xff) | op32](fetchdat >> 8);
|
|
|
|
|
}
|
