void
CALL32_Ap(void)
{
descriptor_t sd;
UINT32 new_ip;
UINT16 new_cs;
UINT16 sreg;
CPU_WORKCLOCK(13);
GET_PCDWORD(new_ip);
GET_PCWORD(new_cs);
if (!CPU_STAT_PM || CPU_STAT_VM86) {
/* Real mode or VM86 mode */
CPU_SET_PREV_ESP();
load_segreg(CPU_CS_INDEX, new_cs, &sreg, &sd, GP_EXCEPTION);
if (new_ip > sd.u.seg.limit) {
EXCEPTION(GP_EXCEPTION, 0);
}
PUSH0_32(CPU_CS);
PUSH0_32(CPU_EIP);
LOAD_SEGREG(CPU_CS_INDEX, new_cs);
CPU_EIP = new_ip;
CPU_CLEAR_PREV_ESP();
} else {
/* Protected mode */
CALLfar_pm(new_cs, new_ip);
}
}
void
JMP32_Ap(void)
{
descriptor_t sd;
UINT32 new_ip;
UINT16 new_cs;
UINT16 sreg;
CPU_WORKCLOCK(11);
GET_PCDWORD(new_ip);
GET_PCWORD(new_cs);
if (!CPU_STAT_PM || CPU_STAT_VM86) {
/* Real mode or VM86 mode */
/* check new instrunction pointer with new code segment */
load_segreg(CPU_CS_INDEX, new_cs, &sreg, &sd, GP_EXCEPTION);
if (new_ip > sd.u.seg.limit) {
EXCEPTION(GP_EXCEPTION, 0);
}
LOAD_SEGREG(CPU_CS_INDEX, new_cs);
CPU_EIP = new_ip;
} else {
/* Protected mode */
JMPfar_pm(new_cs, new_ip);
}
}
void
TEST_EAXId(void)
{
UINT32 src, tmp;
CPU_WORKCLOCK(3);
tmp = CPU_EAX;
GET_PCDWORD(src);
DWORD_AND(tmp, src);
}
void
TEST_EdId(UINT32 op)
{
UINT32 src, tmp, madr;
if (op >= 0xc0) {
CPU_WORKCLOCK(2);
tmp = *(reg32_b20[op]);
} else {
CPU_WORKCLOCK(6);
madr = calc_ea_dst(op);
tmp = cpu_vmemoryread_d(CPU_INST_SEGREG_INDEX, madr);
}
GET_PCDWORD(src);
DWORD_AND(tmp, src);
}
void
CALL_Ad(void)
{
UINT32 new_ip;
UINT32 dest;
CPU_WORKCLOCK(7);
CPU_SET_PREV_ESP();
GET_PCDWORD(dest);
new_ip = CPU_EIP + dest;
if (new_ip > CPU_STAT_CS_LIMIT) {
EXCEPTION(GP_EXCEPTION, 0);
}
PUSH0_32(CPU_EIP);
CPU_EIP = new_ip;
CPU_CLEAR_PREV_ESP();
}
