unsigned int EmulateAll(unsigned int opcode)
{
unsigned int code;
#ifdef NWFPE_DEBUG
printk("NWFPE: emulating opcode %08x\n", opcode);
#endif
code = opcode & 0x00000f00;
if (code == 0x00000100 || code == 0x00000200) {
/* */
code = opcode & 0x0e000000;
if (code == 0x0e000000) {
if (opcode & 0x00000010) {
/* */
/* */
/* */
return EmulateCPRT(opcode);
} else {
/* */
/* */
return EmulateCPDO(opcode);
}
} else if (code == 0x0c000000) {
/* */
/* */
return EmulateCPDT(opcode);
}
}
/* */
return 0;
}
/* Emulate the instruction in the opcode. */
unsigned int EmulateAll(unsigned int opcode)
{
unsigned int code;
#ifdef NWFPE_DEBUG
printk("NWFPE: emulating opcode %08x\n", opcode);
#endif
code = opcode & 0x00000f00;
if (code == 0x00000100 || code == 0x00000200) {
/* For coprocessor 1 or 2 (FPA11) */
code = opcode & 0x0e000000;
if (code == 0x0e000000) {
if (opcode & 0x00000010) {
/* Emulate conversion opcodes. */
/* Emulate register transfer opcodes. */
/* Emulate comparison opcodes. */
return EmulateCPRT(opcode);
} else {
/* Emulate monadic arithmetic opcodes. */
/* Emulate dyadic arithmetic opcodes. */
return EmulateCPDO(opcode);
}
} else if (code == 0x0c000000) {
/* Emulate load/store opcodes. */
/* Emulate load/store multiple opcodes. */
return EmulateCPDT(opcode);
}
}
/* Invalid instruction detected. Return FALSE. */
return 0;
}