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Fix interrupt vectors for INT 60h-66h (reserved for user interrupt) by setting them to zero.

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Move code for INT setup to post_init_ivt.
This commit is contained in:
Stanislav Shwartsman 2009-12-12 08:29:01 +00:00
parent 403454e1e4
commit 589db6cf4a
1 changed files with 52 additions and 41 deletions
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93
bochs/bios/rombios.c
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: rombios.c,v 1.235 2009-09-28 16:36:02 vruppert Exp $
// $Id: rombios.c,v 1.236 2009-12-12 08:29:01 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2002 MandrakeSoft S.A.
@ -937,7 +937,7 @@ Bit16u cdrom_boot();
#endif // BX_ELTORITO_BOOT
static char bios_cvs_version_string[] = "$Revision: 1.235 $ $Date: 2009-09-28 16:36:02 $";
static char bios_cvs_version_string[] = "$Revision: 1.236 $ $Date: 2009-12-12 08:29:01 $";
#define BIOS_COPYRIGHT_STRING "(c) 2002 MandrakeSoft S.A. Written by Kevin Lawton & the Bochs team."
@ -10448,6 +10448,55 @@ post_init_pic:
out 0xa1, AL ;slave pic: unmask IRQ 12, 13, 14
ret
post_init_ivt:
;; set all interrupts to default handler
xor bx, bx ;; offset index
mov cx, #0x0100 ;; counter (256 interrupts)
mov ax, #dummy_iret_handler
mov dx, #0xF000
post_default_ints:
mov [bx], ax
add bx, #2
mov [bx], dx
add bx, #2
loop post_default_ints
;; Printer Services vector
SET_INT_VECTOR(0x17, #0xF000, #int17_handler)
;; Bootstrap failure vector
SET_INT_VECTOR(0x18, #0xF000, #int18_handler)
;; Bootstrap Loader vector
SET_INT_VECTOR(0x19, #0xF000, #int19_handler)
;; User Timer Tick vector
SET_INT_VECTOR(0x1c, #0xF000, #int1c_handler)
;; Memory Size Check vector
SET_INT_VECTOR(0x12, #0xF000, #int12_handler)
;; Equipment Configuration Check vector
SET_INT_VECTOR(0x11, #0xF000, #int11_handler)
;; System Services
SET_INT_VECTOR(0x15, #0xF000, #int15_handler)
;; set vectors 0x60 - 0x66h to zero (0:180..0:19b)
xor ax, ax
mov cx, #0x000E ;; 14 words
mov di, #0x0180
cld
rep
stosw
;; set vector 0x79 to zero
;; this is used by 'gardian angel' protection system
SET_INT_VECTOR(0x79, #0, #0)
ret
;; the following area can be used to write dynamically generated tables
.align 16
bios_table_area_start:
@ -10556,28 +10605,12 @@ normal_post:
call _log_bios_start
;; set all interrupts to default handler
xor bx, bx ;; offset index
mov cx, #0x0100 ;; counter (256 interrupts)
mov ax, #dummy_iret_handler
mov dx, #0xF000
post_default_ints:
mov [bx], ax
add bx, #2
mov [bx], dx
add bx, #2
loop post_default_ints
;; set vector 0x79 to zero
;; this is used by 'gardian angel' protection system
SET_INT_VECTOR(0x79, #0, #0)
call post_init_ivt
;; base memory in K 40:13 (word)
mov ax, #BASE_MEM_IN_K
mov 0x0413, ax
;; Manufacturing Test 40:12
;; zerod out above
@ -10585,28 +10618,6 @@ post_default_ints:
;; value of 1234h = skip memory checks
;; zerod out above
;; Printer Services vector
SET_INT_VECTOR(0x17, #0xF000, #int17_handler)
;; Bootstrap failure vector
SET_INT_VECTOR(0x18, #0xF000, #int18_handler)
;; Bootstrap Loader vector
SET_INT_VECTOR(0x19, #0xF000, #int19_handler)
;; User Timer Tick vector
SET_INT_VECTOR(0x1c, #0xF000, #int1c_handler)
;; Memory Size Check vector
SET_INT_VECTOR(0x12, #0xF000, #int12_handler)
;; Equipment Configuration Check vector
SET_INT_VECTOR(0x11, #0xF000, #int11_handler)
;; System Services
SET_INT_VECTOR(0x15, #0xF000, #int15_handler)
;; EBDA setup
call ebda_post