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Preserve CR in execute_68k(). This enables MacOS 8.6 to work. ;-)

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This commit is contained in:
gbeauche 2003-10-19 21:37:43 +00:00
parent cb13fe3007
commit ccf89d9efb
1 changed files with 5 additions and 3 deletions
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8
SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp
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@ -181,7 +181,7 @@ void sheepshaver_cpu::execute_sheep(uint32 opcode)
case 0: // EMUL_RETURN
QuitEmulator();
break;
case 1: // EXEC_RETURN
throw sheepshaver_exec_return();
break;
@ -294,7 +294,7 @@ void sheepshaver_cpu::interrupt(uint32 entry)
gpr(8) = 0;
gpr(10) = (uint32)trampoline;
gpr(12) = (uint32)trampoline;
gpr(13) = cr().get();
gpr(13) = get_cr();
// rlwimi. r7,r7,8,0,0
uint32 result = op_ppc_rlwimi::apply(gpr(7), 8, 0x80000000, gpr(7));
@ -302,7 +302,7 @@ void sheepshaver_cpu::interrupt(uint32 entry)
gpr(7) = result;
gpr(11) = 0xf072; // MSR (SRR1)
cr().set((gpr(11) & 0x0fff0000) | (cr().get() & ~0x0fff0000));
cr().set((gpr(11) & 0x0fff0000) | (get_cr() & ~0x0fff0000));
// Enter nanokernel
execute(entry);
@ -328,6 +328,7 @@ void sheepshaver_cpu::execute_68k(uint32 entry, M68kRegisters *r)
uint32 saved_pc = pc();
uint32 saved_lr = lr();
uint32 saved_ctr= ctr();
uint32 saved_cr = get_cr();
// Create MacOS stack frame
// FIXME: make sure MacOS doesn't expect PPC registers to live on top
@ -399,6 +400,7 @@ void sheepshaver_cpu::execute_68k(uint32 entry, M68kRegisters *r)
pc() = saved_pc;
lr() = saved_lr;
ctr()= saved_ctr;
set_cr(saved_cr);
}
// Call MacOS PPC code