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ppcopcodes: Fix divw.

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joevt 2023-12-17 05:32:54 -08:00 committed by dingusdev
parent 4fcb357e2f
commit 29e5bbdcc0
1 changed files with 2 additions and 1 deletions
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cpu/ppc/ppcopcodes.cpp
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@ -621,7 +621,8 @@ void dppc_interpreter::ppc_divw() {
ppc_grab_regsdab(); ppc_grab_regsdab();
if (!ppc_result_b) { /* handle the "anything / 0" case */ if (!ppc_result_b) { /* handle the "anything / 0" case */
ppc_result_d = (ppc_result_a & 0x80000000) ? -1 : 0; /* UNDOCUMENTED! */ ppc_result_d = 0; // tested on G4 in Mac OS X 10.4 and Open Firmware.
// ppc_result_d = (ppc_result_a & 0x80000000) ? -1 : 0; /* UNDOCUMENTED! */
if (oe_flag) if (oe_flag)
ppc_state.spr[SPR::XER] |= 0xC0000000; ppc_state.spr[SPR::XER] |= 0xC0000000;