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No need to map ROM executable on emulated/ppc. Make sure to detect unaligned

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EA for lmw/stmw with real addr instead of relying on the signal number.
This commit is contained in:
gbeauche 2004-01-18 22:22:28 +00:00
parent 7f13ce6fed
commit 0665ab1139
1 changed files with 5 additions and 5 deletions
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10
SheepShaver/src/Unix/main_unix.cpp
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@ -561,7 +561,7 @@ int main(int argc, char **argv)
ErrorAlert(str);
goto quit;
}
#if !EMULATED_PPC || defined(__powerpc__)
#if !EMULATED_PPC
if (vm_protect((char *)ROM_BASE, ROM_AREA_SIZE, VM_PAGE_READ | VM_PAGE_WRITE | VM_PAGE_EXECUTE) < 0) {
sprintf(str, GetString(STR_ROM_MMAP_ERR), strerror(errno));
ErrorAlert(str);
@ -1627,8 +1627,8 @@ static void sigsegv_handler(int sig, siginfo_t *sip, void *scp)
transfer_type = TYPE_STORE; transfer_size = SIZE_HALFWORD; addr_mode = MODE_U; break;
#if EMULATE_UNALIGNED_LOADSTORE_MULTIPLE
case 46: // lmw
if (sig == SIGBUS) {
uint32 ea = (ra == 0 ? 0 : r->gpr(ra)) + imm;
if ((addr % 4) != 0) {
uint32 ea = addr;
D(bug("WARNING: unaligned lmw to EA=%08x from IP=%08x\n", ea, r->pc()));
for (int i = rd; i <= 31; i++) {
r->gpr(i) = ReadMacInt32(ea);
@ -1639,8 +1639,8 @@ static void sigsegv_handler(int sig, siginfo_t *sip, void *scp)
}
break;
case 47: // stmw
if (sig == SIGBUS) {
uint32 ea = (ra == 0 ? 0 : r->gpr(ra)) + imm;
if ((addr % 4) != 0) {
uint32 ea = addr;
D(bug("WARNING: unaligned stmw to EA=%08x from IP=%08x\n", ea, r->pc()));
for (int i = rd; i <= 31; i++) {
WriteMacInt32(ea, r->gpr(i));