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Index: rombios.c
===================================================================
RCS file: /cvsroot/bochs/bochs/bios/rombios.c,v
retrieving revision 1.110
diff -u -w -r1.110 rombios.c
--- rombios.c 31 May 2004 13:11:27 -0000 1.110
+++ rombios.c 7 Oct 2004 21:23:50 -0000
@@ -137,6 +137,7 @@
#define DEBUG_INT16 0
#define DEBUG_INT1A 0
#define DEBUG_INT74 0
+#define DEBUG_APM 0
#define BX_CPU 3
#define BX_USE_PS2_MOUSE 1
@@ -145,6 +146,7 @@
#define BX_SUPPORT_FLOPPY 1
#define BX_FLOPPY_ON_CNT 37 // 2 seconds
#define BX_PCIBIOS 1
+#define BX_APM 1
#define BX_USE_ATADRV 1
#define BX_ELTORITO_BOOT 1
@@ -230,17 +232,6 @@
out dx,ax
MEND
-MACRO HALT2
- ;; the HALT macro is called with the line number of the HALT call.
- ;; The line number is then sent to the PANIC_PORT, causing Bochs/Plex
- ;; 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.
- mov dx,#PANIC_PORT2
- mov ax,#?1
- out dx,ax
-MEND
-
MACRO JMP_AP
db 0xea
dw ?2
@@ -1543,15 +1534,12 @@
}
if (action & BIOS_PRINTF_HALT) {
- // freeze in a busy loop. If I do a HLT instruction, then in versions
- // 1.3.pre1 and earlier, it will panic without ever updating the VGA
- // display, so the panic message will not be visible. By waiting
- // forever, you are certain to see the panic message on screen.
- // After a few more versions have passed, we can turn this back into
- // a halt or something.
- // do {} while (1);
+ // freeze in a busy loop.
ASM_START
- HALT2(__LINE__)
+ cli
+ halt2_loop:
+ hlt
+ jmp halt2_loop
ASM_END
}
}
@@ -5412,8 +5400,8 @@
case 0x03: SET_BL( 0x06 ); break;
}
- DI = 0xefc7;
- ES = 0xf000;
+ DI = read_word(0x00, 0x1e*4); // INT vector 0x1E
+ ES = read_word(0x00, 0x1e*4+2);
goto int13_success;
break;
@@ -6984,8 +6972,8 @@
}
/* set es & di to point to 11 byte diskette param table in ROM */
- DI = 0xefc7;
- ES = 0xf000;
+ DI = read_word(0x00, 0x1e*4); // INT vector 0x1E
+ ES = read_word(0x00, 0x1e*4+2);
CLEAR_CF(); // success
/* disk status not changed upon success */
return;
@@ -7880,7 +7868,7 @@
mov al, #0x02
out #0x0a, al ;; clear DMA-1 channel 2 mask bit
- SET_INT_VECTOR(0x1E, #0xF000, #diskette_param_table)
+ SET_INT_VECTOR(0x1E, #0xF000, #diskette_param_table2)
SET_INT_VECTOR(0x40, #0xF000, #int13_diskette)
SET_INT_VECTOR(0x0E, #0xF000, #int0e_handler) ;; IRQ 6
@@ -8344,6 +8332,19 @@
pop ax
iret
+
+;--------------------
+#if BX_APM
+use32 386
+#define APM_PROT32
+#include "apmbios.S"
+use16 386
+
+#define APM_REAL
+#include "apmbios.S"
+
+#endif
+
;--------------------
#if BX_PCIBIOS
use32 386
@@ -9515,6 +9516,26 @@
pop ds
iret
+diskette_param_table2:
+;; New diskette parameter table adding 3 parameters from IBM
+;; Since no provisions are made for multiple drive types, most
+;; values in this table are ignored. I set parameters for 1.44M
+;; floppy here
+db 0xAF
+db 0x02 ;; head load time 0000001, DMA used
+db 0x25
+db 0x02
+db 18
+db 0x1B
+db 0xFF
+db 0x6C
+db 0xF6
+db 0x0F
+db 0x08
+db 79 ;; maximum track
+db 0 ;; data transfer rate
+db 4 ;; drive type in cmos
+
.org 0xf045 ; INT 10 Functions 0-Fh Entry Point
HALT(__LINE__)
iret
@@ -9560,6 +9581,10 @@
.org 0xf859 ; INT 15h System Services Entry Point
int15_handler:
pushf
+#if BX_APM
+ cmp ah, #0x53
+ je apm_call
+#endif
push ds
push es
pushad
@@ -9570,6 +9595,10 @@
popf
//JMPL(iret_modify_cf)
jmp iret_modify_cf
+#if BX_APM
+apm_call:
+ jmp _apmreal_entry
+#endif
;; Protected mode IDT descriptor
;;
|
