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Handle SAFE_INTERRUPT_PPC to check possible nested calls (and this happens)

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This commit is contained in:
gbeauche 2004-05-12 15:54:23 +00:00
parent 9445ccb5ad
commit 7da40bee5c
1 changed files with 22 additions and 0 deletions
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22
SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp
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@ -86,6 +86,9 @@ const uint32 POWERPC_EXEC_RETURN = POWERPC_EMUL_OP | 1;
// Enable multicore (main/interrupts) cpu emulation?
#define MULTICORE_CPU (ASYNC_IRQ ? 1 : 0)
// Enable interrupt routine safety checks?
#define SAFE_INTERRUPT_PPC 1
// Enable Execute68k() safety checks?
#define SAFE_EXEC_68K 1
@ -412,6 +415,17 @@ void sheepshaver_cpu::interrupt(uint32 entry)
const clock_t interrupt_start = clock();
#endif
#if SAFE_INTERRUPT_PPC
static int depth = 0;
if (depth != 0)
printf("FATAL: sheepshaver_cpu::interrupt() called more than once: %d\n", depth);
depth++;
#endif
#if SAFE_INTERRUPT_PPC >= 2
uint32 saved_regs[32];
memcpy(&saved_regs[0], &gpr(0), sizeof(saved_regs));
#endif
#if !MULTICORE_CPU
// Save program counters and branch registers
uint32 saved_pc = pc();
@ -469,6 +483,14 @@ void sheepshaver_cpu::interrupt(uint32 entry)
#if EMUL_TIME_STATS
interrupt_time += (clock() - interrupt_start);
#endif
#if SAFE_INTERRUPT_PPC >= 2
if (memcmp(&saved_regs[0], &gpr(0), sizeof(saved_regs)) != 0)
printf("FATAL: dirty PowerPC registers\n");
#endif
#if SAFE_INTERRUPT_PPC
depth--;
#endif
}
// Execute 68k routine