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target-lm32: fix debug memory access

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CPU models which have the LM32_FLAG_IGNORE_MSB flag set will shadow the
lower 2GB to the upper 2GB memory space. This will fix the debug memory
access used by qemu console and GDB to match this behaviour.

Signed-off-by: Michael Walle <michael@walle.cc>
This commit is contained in:
Michael Walle 2012-04-05 19:52:54 +02:00
parent e531761d63
commit b92e062a6f
1 changed files with 6 additions and 1 deletions
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7
target-lm32/helper.c
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@ -39,7 +39,12 @@ int cpu_lm32_handle_mmu_fault(CPULM32State *env, target_ulong address, int rw,
hwaddr cpu_get_phys_page_debug(CPULM32State *env, target_ulong addr)
{
return addr & TARGET_PAGE_MASK;
addr &= TARGET_PAGE_MASK;
if (env->flags & LM32_FLAG_IGNORE_MSB) {
return addr & 0x7fffffff;
} else {
return addr;
}
}
void lm32_cpu_do_interrupt(CPUState *cs)