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Default all unhandled opcodes to be illegal opcodes

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Print the illegal/unhandled opcode in debug mode


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1736
This commit is contained in:
Sjoerd van der Berg 2004-03-23 20:02:45 +00:00
parent 2c9077f9e2
commit 2b1e4671e4
1 changed files with 18 additions and 11 deletions
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29
src/cpu/core_normal.cpp
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@ -16,6 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include "dosbox.h"
#include "mem.h"
@ -187,23 +188,29 @@ restart_opcode:
#include "core_normal/prefix_66.h"
#include "core_normal/prefix_66_0f.h"
default:
ADDIPFAST(-1);
#if C_DEBUG
LOG_MSG("Unhandled code %X",core.opcode_index+Fetchb());
#else
E_Exit("Unhandled CPU opcode");
illegal_opcode:
LEAVECORE;
reg_eip-=core.ip_lookup-core.op_start;
#if C_DEBUG
{
Bitu len=core.ip_lookup-core.op_start;
if (len>16) len=16;
char tempcode[16*2+1];char * writecode=tempcode;
for (;len>0;len--) {
sprintf(writecode,"%X",mem_readb(core.op_start++));
writecode+=2;
}
LOG(LOG_CPU,LOG_ERROR)("Illegal/Unhandled opcode %s",tempcode);
}
#endif
CPU_Exception(6,0);
goto decode_start;
}
}
decode_end:
LEAVECORE;
return CBRET_NONE;
illegal_opcode:
LEAVECORE;
reg_eip-=core.ip_lookup-core.op_start;
CPU_Exception(6,0);
goto decode_start;
}
Bits CPU_Core_Normal_Trap_Run(void) {