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poweropcodes: Fix clcs for MPC601.

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These output values will pass the current set of risu tests which tests all 32 input values multiple times.
This commit is contained in:
joevt 2024-12-02 01:53:13 -08:00 committed by dingusdev
parent 3fd422008e
commit ee8c912397
1 changed files with 18 additions and 16 deletions
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34
cpu/ppc/poweropcodes.cpp
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@ -62,22 +62,24 @@ template void dppc_interpreter::power_abs<RC1, OV1>(uint32_t opcode);
void dppc_interpreter::power_clcs(uint32_t opcode) {
uint32_t ppc_result_d;
ppc_grab_da(opcode);
switch (reg_a) {
case 12: //instruction cache line size
case 13: //data cache line size
case 14: //minimum line size
case 15: //maximum line size
default: ppc_result_d = is_601 ? 64 : 32; break;
case 7:
case 23: ppc_result_d = is_601 ? 64 : 0; break;
case 8:
case 9:
case 24:
case 25: ppc_result_d = is_601 ? 64 : 4; break;
case 10:
case 11:
case 26:
case 27: ppc_result_d = is_601 ? 64 : 0x4000; break;
switch (reg_a & 15) {
case 0:
case 1:
case 2:
case 3:
case 0xC: //instruction cache line size
case 0xD: //data cache line size
case 0xE: //minimum line size
case 0xF: //maximum line size
ppc_result_d = is_601 ? 0x40 : 0x20; break;
case 4:
case 5:
case 6: ppc_result_d = 0x20; break;
case 7: ppc_result_d = is_601 ? 1 : 0; break;
case 8:
case 9: ppc_result_d = is_601 ? 8 : 4; break;
case 0xA:
case 0xB: ppc_result_d = is_601 ? 0x8000 : 0x4000; break;
}
ppc_store_iresult_reg(reg_d, ppc_result_d);