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- applied patches by Alex Beregszaszi

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* function INT 15h AH=88h implemented
  * added stub for function INT 16h AX=6f02h
  * writes to debug/info/error/panic ports can be disabled now
This commit is contained in:
Volker Ruppert 2005-04-28 17:54:32 +00:00
parent f1ebccbe3c
commit c5b7f5e3ef
5 changed files with 27 additions and 8 deletions
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bochs/bios/rombios.c
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: rombios.c,v 1.134 2005-04-27 18:29:27 sshwarts Exp $
// $Id: rombios.c,v 1.135 2005-04-28 17:53:05 vruppert Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2002 MandrakeSoft S.A.
@ -150,6 +150,8 @@
#define BX_MAX_ATA_INTERFACES 4
#define BX_MAX_ATA_DEVICES (BX_MAX_ATA_INTERFACES*2)
#define BX_VIRTUAL_PORTS 1
/* model byte 0xFC = AT */
#define SYS_MODEL_ID 0xFC
#define SYS_SUBMODEL_ID 0x00
@ -230,9 +232,15 @@ MACRO HALT
;; to print a BX_PANIC message. This will normally halt the simulation
;; with a message such as "BIOS panic at rombios.c, line 4091".
;; However, users can choose to make panics non-fatal and continue.
#if BX_VIRTUAL_PORTS
mov dx,#PANIC_PORT
mov ax,#?1
out dx,ax
#else
mov dx,#0x80
mov ax,#?1
out dx,al
#endif
MEND
MACRO JMP_AP
@ -920,10 +928,10 @@ Bit16u cdrom_boot();
#endif // BX_ELTORITO_BOOT
static char bios_cvs_version_string[] = "$Revision: 1.134 $";
static char bios_date_string[] = "$Date: 2005-04-27 18:29:27 $";
static char bios_cvs_version_string[] = "$Revision: 1.135 $";
static char bios_date_string[] = "$Date: 2005-04-28 17:53:05 $";
static char CVSID[] = "$Id: rombios.c,v 1.134 2005-04-27 18:29:27 sshwarts Exp $";
static char CVSID[] = "$Id: rombios.c,v 1.135 2005-04-28 17:53:05 vruppert Exp $";
/* Offset to skip the CVS $Id: prefix */
#define bios_version_string (CVSID + 4)
@ -1430,8 +1438,10 @@ send(action, c)
Bit16u action;
Bit8u c;
{
#if BX_VIRTUAL_PORTS
if (action & BIOS_PRINTF_DEBUG) outb(DEBUG_PORT, c);
if (action & BIOS_PRINTF_INFO) outb(INFO_PORT, c);
#endif
if (action & BIOS_PRINTF_SCREEN) {
if (c == '\n') wrch('\r');
wrch(c);
@ -1498,7 +1508,9 @@ bios_printf(action, s)
format_width = 0;
if ((action & BIOS_PRINTF_DEBHALT) == BIOS_PRINTF_DEBHALT) {
#if BX_VIRTUAL_PORTS
outb(PANIC_PORT2, 0x00);
#endif
bios_printf (BIOS_PRINTF_SCREEN, "FATAL: ");
}
@ -3558,16 +3570,19 @@ ASM_END
break;
case 0x88: /* extended memory size */
case 0x88:
// Get the amount of extended memory (above 1M)
#if BX_CPU < 2
regs.u.r8.ah = UNSUPPORTED_FUNCTION;
SET_CF();
#else
/* ??? change this back later... */
/* number of 1K blocks of extended memory, subtract off 1st 1Meg */
// AX = bx_mem.get_memory_in_k() - 1024;
regs.u.r8.al = inb_cmos(0x30);
regs.u.r8.ah = inb_cmos(0x31);
// limit to 15M
if(regs.u.r16.ax > 0x3c00)
regs.u.r16.ax = 0x3c00;
CLEAR_CF();
#endif
break;
@ -4209,6 +4224,10 @@ int16_function(DI, SI, BP, SP, BX, DX, CX, AX, FLAGS)
// don't change AH : function int16 ah=0x20-0x22 NOT supported
break;
case 0x6F:
if (GET_AL() == 0x08)
SET_AH(0x02); // unsupported, aka normal keyboard
default:
BX_INFO("KBD: unsupported int 16h function %02x\n", GET_AH());
}