/**
* Check Bios call and see if we need to re-direct to our own routines
* Return TRUE if we've handled the exception, else return FALSE to let TOS attempt it
*/
bool Bios(void)
{
Uint32 Params;
Uint16 BiosCall;
/* Get call */
Params = Regs[REG_A7];
BiosCall = STMemory_ReadWord(Params);
/* Intercept? */
switch(BiosCall)
{
case 0x1:
return Bios_Bconstat(Params);
case 0x2:
return Bios_Bconin(Params);
case 0x3:
return Bios_Bconout(Params);
case 0x4:
return Bios_RWabs(Params);
case 0x8:
return Bios_Bcostat(Params);
default: /* Call as normal! */
HATARI_TRACE ( HATARI_TRACE_OS_BIOS, "BIOS %d\n", BiosCall );
return FALSE;
}
}
/**
* Check Bios call and see if we need to re-direct to our own routines.
* Return true if we've handled the exception, else return false to let
* TOS attempt it
*/
bool Bios(void)
{
Uint32 Params;
Uint16 BiosCall;
/* Get call */
Params = Regs[REG_A7];
BiosCall = STMemory_ReadWord(Params);
Params += SIZE_WORD;
/* Intercept? */
switch(BiosCall)
{
case 0x0:
LOG_TRACE(TRACE_OS_BIOS, "BIOS 0x00 Getmpb(0x%X)\n",
STMemory_ReadLong(Params));
break;
case 0x3:
LOG_TRACE(TRACE_OS_BIOS, "BIOS 0x03 Bconout(%i, 0x%02hhX)\n",
STMemory_ReadWord(Params),
STMemory_ReadWord(Params)+SIZE_WORD);
break;
case 0x4:
Bios_RWabs(Params);
break;
case 0x5:
LOG_TRACE(TRACE_OS_BIOS, "BIOS 0x05 Setexc(0x%hX, 0x%X)\n",
STMemory_ReadWord(Params),
STMemory_ReadLong(Params)+SIZE_WORD);
break;
case 0x1:
case 0x2:
case 0x7:
case 0x8:
case 0x9:
case 0xB:
/* commands taking a single word */
LOG_TRACE(TRACE_OS_BIOS, "BIOS 0x%02hX %s(0x%hX)\n",
BiosCall, Bios_Call2Name(BiosCall),
STMemory_ReadWord(Params));
break;
case 0x6:
case 0xA:
/* commands taking no args */
LOG_TRACE(TRACE_OS_BIOS, "BIOS 0x%02hX %s()\n",
BiosCall, Bios_Call2Name(BiosCall));
break;
default:
Log_Printf(LOG_WARN, "Unknown BIOS call 0x%x!\n", BiosCall);
break;
}
return false;
}