* Code cleanup:
- remove trailing white space, trailing empty lines, C++ comments, etc.
- split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)
* Patches by Kenneth Johansson, 25 Jun 2003:
- major rework of command structure
(work done mostly by Michal Cendrowski and Joakim Kristiansen)
diff --git a/lib_i386/bios.S b/lib_i386/bios.S
index ce6e94c..4606419 100644
--- a/lib_i386/bios.S
+++ b/lib_i386/bios.S
@@ -1,7 +1,7 @@
/*
* (C) Copyright 2002
* Daniel Engström, Omicron Ceti AB, daniel@omicron.se
- *
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
@@ -46,9 +46,9 @@
.section .bios, "ax"
.code16
.org 0
- /* a call to f000:0 should warmboot */
+ /* a call to f000:0 should warmboot */
jmp realmode_reset
-
+
.globl rm_int00
rm_int00:
pushw $0
@@ -181,18 +181,18 @@
rm_def_int:
iret
-
+
/*
* All interrupt jumptable entries jump to here
* after pushing the interrupt vector number onto the
* stack.
*/
any_interrupt16:
- MAKE_BIOS_STACK
+ MAKE_BIOS_STACK
gs movw OFFS_VECTOR(%bp), %ax
cmpw $0x10, %ax
- je Lint_10h
+ je Lint_10h
cmpw $0x11, %ax
je Lint_11h
cmpw $0x12, %ax
@@ -210,10 +210,10 @@
Lint_10h: /* VGA BIOS services */
call bios_10h
jmp Lout
-Lint_11h:
+Lint_11h:
call bios_11h
jmp Lout
-Lint_12h:
+Lint_12h:
call bios_12h
jmp Lout
Lint_13h: /* BIOS disk services */
@@ -228,13 +228,13 @@
Lint_1ah: /* PCI bios */
call bios_1ah
jmp Lout
-Lout:
+Lout:
cmpw $0, %ax
je Lhandeled
-
+
/* Insert code for unhandeled INTs here.
*
- * ROLO prints a message to the console
+ * ROLO prints a message to the console
* (we could do that but then we're in 16bit mode
* so we'll have to get back into 32bit mode
* to use the console I/O routines (if we do this
@@ -286,7 +286,7 @@
bios_11h:
cs movw bios_equipment, %ax
-gs movw %ax, OFFS_AX(%bp)
+gs movw %ax, OFFS_AX(%bp)
xorw %ax, %ax
ret
@@ -327,14 +327,13 @@
je Lfunc_15h
movw $0xffff, %ax
ret
-Lfunc_15h:
+Lfunc_15h:
gs movw OFFS_AX(%bp), %ax
andw $0xff, %ax /* return AH=0->drive not present */
gs movw %ax, OFFS_AX(%bp)
xorw %ax, %ax
ret
-
-
+
/*
***********************************************************
@@ -359,7 +358,7 @@
gs movw %ax, OFFS_FLAGS(%bp)
xorw %ax, %ax
ret
-
+
Lfunc_e8h:
gs movw OFFS_AX(%bp), %ax
andw $0xff, %ax
@@ -370,31 +369,31 @@
gs movw %ax, OFFS_FLAGS(%bp)
xorw %ax, %ax
ret
-
+
Lfunc_e801h: /* Get memory size for >64M Configurations */
cs movw ram_in_64kb_chunks, %ax
cmpw $0x100, %ax
ja e801_more_than_16mb
shlw $6, %ax /* multiply by 64 */
subw $0x400, %ax /* 1st meg does not count */
-
+
gs movw %ax, OFFS_AX(%bp) /* return memory size between 1M and 16M in 1kb chunks in AX and CX */
gs movw %ax, OFFS_CX(%bp)
gs movw $0, OFFS_BX(%bp) /* set BX and DX to 0*/
-gs movw $0, OFFS_DX(%bp)
+gs movw $0, OFFS_DX(%bp)
gs movw OFFS_FLAGS(%bp), %ax
andw $0xfffe, %ax /* clear carry -- function succeeded */
gs movw %ax, OFFS_FLAGS(%bp)
xorw %ax, %ax
ret
-
+
e801_more_than_16mb:
- subw $0x100, %ax /* subtract 16MB */
-
+ subw $0x100, %ax /* subtract 16MB */
+
gs movw $0x3c00, OFFS_AX(%bp) /* return 0x3c00 (16MB-1MB) in AX and CX */
gs movw $0x3c00, OFFS_CX(%bp)
gs movw %ax, OFFS_BX(%bp) /* set BX and DX to number of 64kb chunks above 16MB */
-gs movw %ax, OFFS_DX(%bp)
+gs movw %ax, OFFS_DX(%bp)
gs movw OFFS_FLAGS(%bp), %ax
andw $0xfffe, %ax /* clear carry -- function succeeded */
@@ -410,7 +409,7 @@
b88_not_more_than16:
shlw $6, %ax
subw $0x400, %ax /* 1st meg does not count */
-
+
gs movw %ax, OFFS_AX(%bp) /* return number of kilobytes between 16MB and 16MB in ax */
gs movw OFFS_FLAGS(%bp), %ax
@@ -461,4 +460,3 @@
.globl bios_equipment
bios_equipment:
.word 0
-