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bochs: backport decoding of CRC32 instr fix

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Upstream SVN r10223
Backport was neccessary, because the CRC32 assambly instruction
did not work as expected in bochs.
This commit is contained in:
Robin Thunig
2021-03-24 19:53:21 +01:00
parent 18b3203257
commit 2fd5c20a7c
4 changed files with 38 additions and 33 deletions
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13
simulators/bochs/cpu/crregs.cc
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@ -1192,6 +1192,19 @@ bx_bool BX_CPU_C::hwbreakpoint_check(bx_address laddr)
return 0;
}
void BX_CPU_C::code_breakpoint_match(bx_address laddr)
{
if (BX_CPU_THIS_PTR dr7 & 0x000000ff) {
Bit32u dr6_bits = hwdebug_compare(iaddr, 1, BX_HWDebugInstruction, BX_HWDebugInstruction);
if (dr6_bits) {
// Add to the list of debug events thus far.
BX_CPU_THIS_PTR debug_trap |= dr6_bits;
BX_ERROR(("#DB: x86 code breakpoint catched"));
exception(BX_DB_EXCEPTION, 0); // no error, not interrupt
}
}
}
void BX_CPU_C::hwbreakpoint_match(bx_address laddr, unsigned len, unsigned rw)
{
if (BX_CPU_THIS_PTR dr7 & 0x000000ff) {