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add FP regs & state to preserved context on interrupt

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This commit is contained in:
gbeauche 2005-01-30 21:12:07 +00:00
parent 9b17e04150
commit 126e549397
1 changed files with 12 additions and 0 deletions
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12
SheepShaver/src/kpx_cpu/sheepshaver_glue.cpp
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@ -145,11 +145,13 @@ class sheepshaver_cpu
// CPU context to preserve on interrupt
class interrupt_context {
uint32 gpr[32];
double fpr[32];
uint32 pc;
uint32 lr;
uint32 ctr;
uint32 cr;
uint32 xer;
uint32 fpscr;
sheepshaver_cpu *cpu;
const char *where;
public:
@ -486,11 +488,13 @@ sheepshaver_cpu::interrupt_context::interrupt_context(sheepshaver_cpu *_cpu, con
// Save interrupt context
memcpy(&gpr[0], &cpu->gpr(0), sizeof(gpr));
memcpy(&fpr[0], &cpu->fpr(0), sizeof(fpr));
pc = cpu->pc();
lr = cpu->lr();
ctr = cpu->ctr();
cr = cpu->get_cr();
xer = cpu->get_xer();
fpscr = cpu->fpscr();
#endif
}
@ -504,6 +508,12 @@ sheepshaver_cpu::interrupt_context::~interrupt_context()
if (gpr[i] != cpu->gpr(i))
printf(" r%d: %08x -> %08x\n", i, gpr[i], cpu->gpr(i));
}
if (memcmp(&fpr[0], &cpu->fpr(0), sizeof(fpr)) != 0) {
printf("FATAL: %s: interrupt clobbers registers\n", where);
for (int i = 0; i < 32; i++)
if (fpr[i] != cpu->fpr(i))
printf(" r%d: %f -> %f\n", i, fpr[i], cpu->fpr(i));
}
if (pc != cpu->pc())
printf("FATAL: %s: interrupt clobbers PC\n", where);
if (lr != cpu->lr())
@ -514,6 +524,8 @@ sheepshaver_cpu::interrupt_context::~interrupt_context()
printf("FATAL: %s: interrupt clobbers CR\n", where);
if (xer != cpu->get_xer())
printf("FATAL: %s: interrupt clobbers XER\n", where);
if (fpscr != cpu->fpscr())
printf("FATAL: %s: interrupt clobbers FPSCR\n", where);
#endif
}