static void I486OP(xadd_rm16_r16)(i386_state *cpustate) // Opcode 0x0f c1
{
UINT8 modrm = FETCH(cpustate);
if( modrm >= 0xc0 ) {
UINT16 dst = LOAD_RM16(modrm);
UINT16 src = LOAD_REG16(modrm);
STORE_RM16(modrm, dst + src);
STORE_REG16(modrm, dst);
CYCLES(cpustate,CYCLES_XADD_REG_REG);
} else {
UINT32 ea = GetEA(cpustate,modrm);
UINT16 dst = READ16(cpustate,ea);
UINT16 src = LOAD_REG16(modrm);
WRITE16(cpustate,ea, dst + src);
STORE_REG16(modrm, dst);
CYCLES(cpustate,CYCLES_XADD_REG_MEM);
}
}
void i386_device::i486_xadd_rm16_r16() // Opcode 0x0f c1
{
UINT8 modrm = FETCH();
if( modrm >= 0xc0 ) {
UINT16 dst = LOAD_RM16(modrm);
UINT16 src = LOAD_REG16(modrm);
STORE_REG16(modrm, dst);
STORE_RM16(modrm, dst + src);
CYCLES(CYCLES_XADD_REG_REG);
} else {
UINT32 ea = GetEA(modrm,1);
UINT16 dst = READ16(ea);
UINT16 src = LOAD_REG16(modrm);
WRITE16(ea, dst + src);
STORE_REG16(modrm, dst);
CYCLES(CYCLES_XADD_REG_MEM);
}
}
static void I486OP(xadd_rm8_r8)(i386_state *cpustate) // Opcode 0x0f c0
{
UINT8 modrm = FETCH(cpustate);
if( modrm >= 0xc0 ) {
UINT8 dst = LOAD_RM8(modrm);
UINT8 src = LOAD_REG8(modrm);
STORE_RM16(modrm, dst + src);
STORE_REG16(modrm, dst);
CYCLES(cpustate,CYCLES_XADD_REG_REG);
} else {
UINT32 ea = GetEA(cpustate,modrm,1);
UINT8 dst = READ8(cpustate,ea);
UINT8 src = LOAD_REG8(modrm);
WRITE8(cpustate,ea, dst + src);
STORE_REG8(modrm, dst);
CYCLES(cpustate,CYCLES_XADD_REG_MEM);
}
}