[ros-diffs] [tkreuzer] 52291: [FREELDR] convert i386pnp.S to intel sytax
tkreuzer at svn.reactos.org
tkreuzer at svn.reactos.org
Fri Jun 17 07:53:58 UTC 2011
Author: tkreuzer
Date: Fri Jun 17 07:53:56 2011
New Revision: 52291
URL: http://svn.reactos.org/svn/reactos?rev=52291&view=rev
Log:
[FREELDR]
convert i386pnp.S to intel sytax
Modified:
trunk/reactos/boot/freeldr/freeldr/arch/i386/i386pnp.S
Modified: trunk/reactos/boot/freeldr/freeldr/arch/i386/i386pnp.S
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/arch/i386/i386pnp.S?rev=52291&r1=52290&r2=52291&view=diff
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/arch/i386/i386pnp.S [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/arch/i386/i386pnp.S [iso-8859-1] Fri Jun 17 07:53:56 2011
@@ -17,11 +17,10 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
- .text
- .code16
-
+#include <asm.inc>
#include <arch/pc/x86common.h>
+.code32
/*
@@ -34,68 +33,68 @@
_pnp_bios_data_segment:
.word 0
-EXTERN(_PnpBiosSupported)
- .code32
-
- pushl %edi
- pushl %esi
- pushl %ecx
- pushl %edx
-
- xorl %edi,%edi
+PUBLIC _PnpBiosSupported
+_PnpBiosSupported:
+
+ push edi
+ push esi
+ push ecx
+ push edx
+
+ xor edi, edi
/* init esi */
- movl $0xF0000,%esi
+ mov esi, HEX(0F0000)
pnp_again:
- movl (%esi),%eax
- cmp $0x506E5024,%eax /* "$PnP" */
- je pnp_found
-
- cmp $0xFFFF0,%esi
- je pnp_not_found
+ mov eax, [esi]
+ cmp eax, HEX(506E5024) /* "$PnP" */
+ je pnp_found
+
+ cmp esi, HEX(0FFFF0)
+ je pnp_not_found
pnp_add:
- addl $0x10,%esi
- jmp pnp_again
+ add esi, 16
+ jmp pnp_again
pnp_found:
/* first calculate the checksum */
- pushl %esi
-
- pushl $0x21
- popl %ecx
- xorl %edx, %edx
+ push esi
+
+ push HEX(21)
+ pop ecx
+ xor edx, edx
pnp_loop:
lodsb
- addb %al,%dl
- loopl pnp_loop
-
- testb %dl, %dl
- popl %esi
- jnz pnp_add
-
- movl %esi,%edi
+ add dl, al
+ loop pnp_loop
+
+ test dl, dl
+ pop esi
+ jnz pnp_add
+
+ mov edi, esi
/* Calculate the bios entry point (far pointer) */
- xorl %eax,%eax
- movw 0x0F(%esi),%ax
- shll $16,%eax
- movw 0x0D(%esi),%ax
- movl %eax,_pnp_bios_entry_point
+ xor eax, eax
+ mov ax, [esi + 15]
+ shl eax, 16
+ mov ax, [esi + 0x0D]
+ mov _pnp_bios_entry_point, eax
/* Store bios data segment */
- movw 0x1B(%esi),%ax
- movw %ax,_pnp_bios_data_segment
+ mov ax, [esi + 0x1B]
+ mov _pnp_bios_data_segment, ax
pnp_not_found:
- movl %edi,%eax
-
- popl %edx
- popl %ecx
- popl %esi
- popl %edi
+ mov eax, edi
+
+ pop edx
+ pop ecx
+ pop esi
+ pop edi
ret
@@ -112,58 +111,58 @@
_pnp_node_count:
.word 0
-EXTERN(_PnpBiosGetDeviceNodeCount)
+PUBLIC _PnpBiosGetDeviceNodeCount
+_PnpBiosGetDeviceNodeCount:
+
+ push ebp
+ mov ebp, esp
+
+ pusha
+ push es
+
+ call switch_to_real
+ .code16
+
+ mov ax, word ptr [_pnp_bios_data_segment]
+ push ax
+
+ push cs
+ mov ax, offset _pnp_node_size
+ push ax
+
+ push cs
+ mov ax, offset _pnp_node_count
+ push ax
+
+ push 0
+
+ call dword ptr [_pnp_bios_entry_point]
+ add sp, 12
+
+ movzx ecx, ax
+ mov _pnp_result, ecx
+
+
+ call switch_to_prot
.code32
- pushl %ebp
- movl %esp,%ebp
-
- pushal
- push %es
-
- call switch_to_real
- .code16
-
- movw _pnp_bios_data_segment,%ax
- pushw %ax
-
- pushw %cs
- movw $(_pnp_node_size),%ax
- pushw %ax
-
- pushw %cs
- movw $(_pnp_node_count),%ax
- pushw %ax
-
- pushw $0
-
- lcall *_pnp_bios_entry_point
- addw $12,%sp
-
- movzwl %ax,%ecx
- movl %ecx,_pnp_result
-
-
- call switch_to_prot
- .code32
-
- movl 0x08(%ebp),%esi
- movw _pnp_node_size,%ax
- movzwl %ax,%ecx
- movl %ecx, (%esi)
-
- movl 0x0C(%ebp),%esi
- movw _pnp_node_count,%ax
- movzwl %ax,%ecx
- movl %eax, (%esi)
-
- pop %es
- popal
-
- movl %ebp,%esp
- popl %ebp
-
- movl _pnp_result,%eax
+ mov esi, [ebp + 8]
+ mov ax, _pnp_node_size
+ movzx ecx, ax
+ mov [esi], ecx
+
+ mov esi, [ebp + 12]
+ mov ax, _pnp_node_count
+ movzx ecx, ax
+ mov [esi], eax
+
+ pop es
+ popa
+
+ mov esp, ebp
+ pop ebp
+
+ mov eax, _pnp_result
ret
@@ -184,72 +183,72 @@
EXTERN(_PnpBiosGetDeviceNode)
.code32
- pushl %ebp
- movl %esp,%ebp
-
- pushal
- push %es
+ push ebp
+ mov ebp, esp
+
+ pusha
+ push es
/* get current node number */
- movl 0x08(%ebp),%esi
- movb (%esi),%al
- movb %al,_pnp_node_number
+ mov esi, [ebp + 8]
+ mov al, [esi]
+ mov _pnp_node_number, al
/* convert pointer to node buffer to segment/offset */
- movl 0x0C(%ebp),%eax
- shrl $4,%eax
- andl $0xf000,%eax
- movw %ax,_pnp_buffer_segment
- movl 0x0C(%ebp),%eax
- andl $0xffff,%eax
- movw %ax,_pnp_buffer_offset
-
- call switch_to_real
+ mov eax, [ebp + 12]
+ shr eax, 4
+ and eax, 0xf000
+ mov _pnp_buffer_segment, ax
+ mov eax, [ebp + 12]
+ and eax, 0xffff
+ mov _pnp_buffer_offset, ax
+
+ call switch_to_real
.code16
/* push bios segment */
- movw _pnp_bios_data_segment,%ax
- pushw %ax
+ mov ax, word ptr [_pnp_bios_data_segment]
+ push ax
/* push control flag */
- pushw $0x0001
+ push 1
/* push pointer to node buffer (segment/offset) */
- movw _pnp_buffer_segment,%ax
- pushw %ax
- movw _pnp_buffer_offset,%ax
- pushw %ax
+ mov ax, word ptr [_pnp_buffer_segment]
+ push ax
+ mov ax, word ptr [_pnp_buffer_offset]
+ push ax
/* push pointer to node number (segment/offset) */
- pushw %cs
- movw $(_pnp_node_number),%ax
- pushw %ax
+ push cs
+ mov ax, offset _pnp_node_number
+ push ax
/* push function number */
- pushw $1
+ push 1
/* call entry point */
- lcall *_pnp_bios_entry_point
- addw $14,%sp
-
- movzwl %ax,%ecx
- movl %ecx,_pnp_result
-
- call switch_to_prot
+ call dword ptr [_pnp_bios_entry_point]
+ add sp, 14
+
+ movzx ecx, ax
+ mov _pnp_result, ecx
+
+ call switch_to_prot
.code32
/* update node number */
- movl 0x08(%ebp),%esi
- movb _pnp_node_number,%al
- movb %al,(%esi)
-
- pop %es
- popal
-
- movl %ebp,%esp
- popl %ebp
-
- movl _pnp_result,%eax
+ mov esi, [ebp + 8]
+ mov al, _pnp_node_number
+ mov [esi], al
+
+ pop es
+ popa
+
+ mov esp, ebp
+ pop ebp
+
+ mov eax, _pnp_result
ret
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