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- print messages on boot failure

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This commit is contained in:
Bryce Denney 2001-05-31 20:36:05 +00:00
parent 144fb07742
commit 954e3377b4
1 changed files with 25 additions and 2 deletions
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27
bochs/bios/rombios.c
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@ -253,8 +253,10 @@ static Boolean set_enable_a20();
static void debugger_on();
static void debugger_off();
static void keyboard_panic();
static void boot_failure_msg();
static void nmi_handler_msg();
static void print_bios_banner();
static char bios_version_string[] = "BIOS Version is $Id: rombios.c,v 1.9 2001-05-31 15:23:10 bdenney Exp $";
static char bios_version_string[] = "BIOS Version is $Id: rombios.c,v 1.10 2001-05-31 20:36:05 bdenney Exp $";
#define DEBUG_ROMBIOS 0
@ -809,6 +811,24 @@ keyboard_panic()
panic("Keyboard RESET error\n");
}
void
boot_failure_msg(drive)
Bit16u drive;
{
if (drive < 0x80) {
bios_printf(0, "Boot Failure! I could not read floppy drive %d.\n", drive);
} else {
drive &= 0x7f;
bios_printf(0, "Boot Failure! I could not read hard disk %d.\n", drive);
}
}
void
nmi_handler_msg()
{
bios_printf(0, "NMI Handler called\n");
}
void
print_bios_banner()
{
@ -3384,8 +3404,10 @@ int19_loadsector:
jc bootstrap_problem
JMP_AP(0x0000, 0x7c00)
bootstrap_problem:
xor dh,dh
push dx
call _boot_failure_msg
int #0x18 ;; Boot failure
HALT(__LINE__)
iret
;----------
@ -4356,6 +4378,7 @@ notrom:
.org 0xe2c3 ; NMI Handler Entry Point
call _nmi_handler_msg
HALT(__LINE__)
iret