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Fix NativeOp code generation, especially in PPC_REENTRANT_JIT mode

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This commit is contained in:
gbeauche 2004-05-23 05:28:12 +00:00
parent f376933138
commit 05bd5f40b4
1 changed files with 20 additions and 13 deletions
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33
SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp
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@ -469,21 +469,24 @@ int sheepshaver_cpu::compile1(codegen_context_t & cg_context)
break;
}
// Could we fully translate this NativeOp?
if (FN_field::test(opcode)) {
if (status != COMPILE_FAILURE) {
if (status == COMPILE_CODE_OK) {
if (!FN_field::test(opcode))
cg_context.done_compile = false;
else {
dg.gen_load_A0_LR();
dg.gen_set_PC_A0();
cg_context.done_compile = true;
}
cg_context.done_compile = true;
break;
}
else if (status != COMPILE_FAILURE) {
cg_context.done_compile = false;
break;
}
#if PPC_REENTRANT_JIT
// Try to execute NativeOp trampoline
dg.gen_set_PC_im(cg_context.pc + 4);
if (!FN_field::test(opcode))
dg.gen_set_PC_im(cg_context.pc + 4);
else {
dg.gen_load_A0_LR();
dg.gen_set_PC_A0();
}
dg.gen_mov_32_T0_im(selector);
dg.gen_jmp(native_op_trampoline);
cg_context.done_compile = true;
@ -491,11 +494,15 @@ int sheepshaver_cpu::compile1(codegen_context_t & cg_context)
break;
#endif
// Invoke NativeOp handler
typedef void (*func_t)(dyngen_cpu_base, uint32);
func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
dg.gen_invoke_CPU_im(func, selector);
cg_context.done_compile = false;
status = COMPILE_CODE_OK;
if (!FN_field::test(opcode)) {
typedef void (*func_t)(dyngen_cpu_base, uint32);
func_t func = (func_t)nv_mem_fun(&sheepshaver_cpu::execute_native_op).ptr();
dg.gen_invoke_CPU_im(func, selector);
cg_context.done_compile = false;
status = COMPILE_CODE_OK;
}
// Otherwise, let it generate a call to execute_sheep() which
// will cause necessary updates to the program counter
break;
}