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TomW 2013-05-27 19:56:33 +01:00
commit f822488656
89 changed files with 18428 additions and 6383 deletions
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268
src/x86_ops_jump.h Normal file
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#define cond_O ( VF_SET())
#define cond_NO (!VF_SET())
#define cond_B ( CF_SET())
#define cond_NB (!CF_SET())
#define cond_E ( ZF_SET())
#define cond_NE (!ZF_SET())
#define cond_BE ( CF_SET() || ZF_SET())
#define cond_NBE (!CF_SET() && !ZF_SET())
#define cond_S ( NF_SET())
#define cond_NS (!NF_SET())
#define cond_P ( PF_SET())
#define cond_NP (!PF_SET())
#define cond_L (((NF_SET()) ? 1 : 0) != ((VF_SET()) ? 1 : 0))
#define cond_NL (((NF_SET()) ? 1 : 0) == ((VF_SET()) ? 1 : 0))
#define cond_LE (((NF_SET()) ? 1 : 0) != ((VF_SET()) ? 1 : 0) || (ZF_SET()))
#define cond_NLE (((NF_SET()) ? 1 : 0) == ((VF_SET()) ? 1 : 0) && (!ZF_SET()))
#define opJ(condition) \
static int opJ ## condition(uint32_t fetchdat) \
{ \
int8_t offset = (int8_t)getbytef(); \
if (cond_ ## condition) \
{ \
pc += offset; \
cycles -= timing_bt; \
} \
cycles -= timing_bnt; \
return 0; \
} \
\
static int opJ ## condition ## _w(uint32_t fetchdat) \
{ \
int16_t offset = (int16_t)getwordf(); \
if (cond_ ## condition) \
{ \
pc += offset; \
cycles -= timing_bt; \
} \
cycles -= timing_bnt; \
return 0; \
} \
\
static int opJ ## condition ## _l(uint32_t fetchdat) \
{ \
uint32_t offset = getlong(); \
if (cond_ ## condition) \
{ \
pc += offset; \
cycles -= timing_bt; \
} \
cycles -= timing_bnt; \
return 0; \
} \
opJ(O)
opJ(NO)
opJ(B)
opJ(NB)
opJ(E)
opJ(NE)
opJ(BE)
opJ(NBE)
opJ(S)
opJ(NS)
opJ(P)
opJ(NP)
opJ(L)
opJ(NL)
opJ(LE)
opJ(NLE)
static int opLOOPNE_w(uint32_t fetchdat)
{
int8_t offset = (int8_t)getbytef();
CX--;
if (CX && !ZF_SET())
pc += offset;
cycles -= (is486) ? 7 : 11;
return 0;
}
static int opLOOPNE_l(uint32_t fetchdat)
{
int8_t offset = (int8_t)getbytef();
ECX--;
if (ECX && !ZF_SET())
pc += offset;
cycles -= (is486) ? 7 : 11;
return 0;
}
static int opLOOPE_w(uint32_t fetchdat)
{
int8_t offset = (int8_t)getbytef();
CX--;
if (CX && ZF_SET())
pc += offset;
cycles -= (is486) ? 7 : 11;
return 0;
}
static int opLOOPE_l(uint32_t fetchdat)
{
int8_t offset = (int8_t)getbytef();
ECX--;
if (ECX && ZF_SET())
pc += offset;
cycles -= (is486) ? 7 : 11;
return 0;
}
static int opLOOP_w(uint32_t fetchdat)
{
int8_t offset = (int8_t)getbytef();
CX--;
if (CX)
pc += offset;
cycles -= (is486) ? 7 : 11;
return 0;
}
static int opLOOP_l(uint32_t fetchdat)
{
int8_t offset = (int8_t)getbytef();
ECX--;
if (ECX)
pc += offset;
cycles -= (is486) ? 7 : 11;
return 0;
}
static int opJCXZ(uint32_t fetchdat)
{
int8_t offset = (int8_t)getbytef();
if (!CX)
{
pc += offset;
cycles -= 4;
}
cycles -= 5;
return 0;
}
static int opJECXZ(uint32_t fetchdat)
{
int8_t offset = (int8_t)getbytef();
if (!ECX)
{
pc += offset;
cycles -= 4;
}
cycles -= 5;
return 0;
}
static int opJMP_r8(uint32_t fetchdat)
{
int8_t offset = (int8_t)getbytef();
pc += offset;
cycles -= (is486) ? 3 : 7;
return 0;
}
static int opJMP_r16(uint32_t fetchdat)
{
int16_t offset = (int16_t)getwordf();
pc += offset;
cycles -= (is486) ? 3 : 7;
return 0;
}
static int opJMP_r32(uint32_t fetchdat)
{
int32_t offset = (int32_t)getlong(); if (abrt) return 0;
pc += offset;
cycles -= (is486) ? 3 : 7;
return 0;
}
static int opJMP_far_a16(uint32_t fetchdat)
{
uint16_t addr = getwordf();
uint16_t seg = getword(); if (abrt) return 0;
uint32_t oxpc = pc;
pc = addr;
loadcsjmp(seg, oxpc);
cycles -= (is486) ? 17 : 12;
return 0;
}
static int opJMP_far_a32(uint32_t fetchdat)
{
uint32_t addr = getlong();
uint16_t seg = getword(); if (abrt) return 0;
uint32_t oxpc = pc;
pc = addr;
loadcsjmp(seg, oxpc);
cycles -= (is486) ? 17 : 12;
return 0;
}
int opCALL_r16(uint32_t fetchdat)
{
int16_t addr = (int16_t)getwordf();
if (ssegs) ss=oldss;
PUSH_W(pc);
pc += addr;
cycles -= (is486) ? 3 : 7;
return 0;
}
int opCALL_r32(uint32_t fetchdat)
{
int32_t addr = getlong(); if (abrt) return 0;
if (ssegs) ss=oldss;
PUSH_L(pc);
pc += addr;
cycles -= (is486) ? 3 : 7;
return 0;
}
int opRET_w(uint32_t fetchdat)
{
uint16_t ret;
if (ssegs) ss=oldss;
ret = POP_W(); if (abrt) return 0;
pc = ret;
cycles -= (is486) ? 5 : 10;
return 0;
}
int opRET_l(uint32_t fetchdat)
{
uint32_t ret;
if (ssegs) ss=oldss;
ret = POP_L(); if (abrt) return 0;
pc = ret;
cycles -= (is486) ? 5 : 10;
return 0;
}
int opRET_w_imm(uint32_t fetchdat)
{
uint16_t offset = getwordf();
uint16_t ret;
if (ssegs) ss=oldss;
ret = POP_W(); if (abrt) return 0;
if (stack32) ESP += offset;
else SP += offset;
pc = ret;
cycles -= (is486) ? 5 : 10;
return 0;
}
int opRET_l_imm(uint32_t fetchdat)
{
uint16_t offset = getwordf();
uint32_t ret;
if (ssegs) ss=oldss;
ret = POP_L(); if (abrt) return 0;
if (stack32) ESP += offset;
else SP += offset;
pc = ret;
cycles -= (is486) ? 5 : 10;
return 0;
}