X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Farch%2Fx86%2Fdesctab.asm;h=969752c72c4573076b98f4676fc9f54f88bce515;hb=243bdab4e7acc8516d9b1c138f45dc1195f97767;hp=2d0a2329d0b0a1118fb222d42cc1fee2e730c4cc;hpb=b37a72724f8584364a3b0f3c57882e803155e499;p=tpg%2Facess2.git

diff --git a/Kernel/arch/x86/desctab.asm b/Kernel/arch/x86/desctab.asm
index 2d0a2329..969752c7 100644
--- a/Kernel/arch/x86/desctab.asm
+++ b/Kernel/arch/x86/desctab.asm
@@ -8,12 +8,12 @@ MAX_CPUS	equ	1
 %else
 MAX_CPUS	equ	8
 %endif
-GDT_SIZE	equ	(1+2*2+MAX_CPUS)*8	; 4 Permission levels
+GDT_SIZE	equ	(1+2*2+1+MAX_CPUS)*8
 
 [section .data]
 ; GDT
-[global _gGDT]
-_gGDT:
+[global gGDT]
+gGDT:
 	; PL0 - Kernel
 	; PL3 - User
 	dd 0x00000000, 0x00000000	; 00 NULL Entry
@@ -21,23 +21,24 @@ _gGDT:
 	dd 0x0000FFFF, 0x00CF9200	; 10 PL0 Data
 	dd 0x0000FFFF, 0x00CFFA00	; 18 PL3 Code
 	dd 0x0000FFFF, 0x00CFF200	; 20 PL3 Data
+	dd 0, 0	; Double Fault TSS
 	times MAX_CPUS	dd 0, 0
-_gGDTptr:
+gGDTptr:
 	dw	GDT_SIZE-1
-	dd	_gGDT
+	dd	gGDT
 ; IDT
 ALIGN 8
-_gIDT:
+gIDT:
 	times	256	dd	0x00080000,0x00000F00
-_gIDTPtr:
+gIDTPtr:
 	dw	256 * 16 - 1	; Limit
-	dd	_gIDT		; Base
+	dd	gIDT		; Base
 
 [section .text]
-[global _Desctab_Install]
-_Desctab_Install:
+[global Desctab_Install]
+Desctab_Install:
 	; Set GDT
-	lgdt [_gGDTptr]
+	lgdt [gGDTptr]
 	mov ax, 0x10	; PL0 Data
 	mov ss, ax
 	mov ds, ax
@@ -49,18 +50,18 @@ _Desctab_Install:
 
 	; Set IDT
 %macro SETISR	1
-	mov eax, _Isr%1
-	mov	WORD [_gIDT + %1*8], ax
+	mov eax, Isr%1
+	mov	WORD [gIDT + %1*8], ax
 	shr eax, 16
-	mov	WORD [_gIDT + %1*8+6], ax
-	mov	ax, WORD [_gIDT + %1*8 + 4]
+	mov	WORD [gIDT + %1*8+6], ax
+	mov	ax, WORD [gIDT + %1*8 + 4]
 	or ax, 0x8000
-	mov	WORD [_gIDT + %1*8 + 4], ax
+	mov	WORD [gIDT + %1*8 + 4], ax
 %endmacro
 %macro SETUSER	1
-	mov	ax, WORD [_gIDT + %1*8 + 4]
+	mov	ax, WORD [gIDT + %1*8 + 4]
 	or ax, 0x6000
-	mov	WORD [_gIDT + %1*8 + 4], ax
+	mov	WORD [gIDT + %1*8 + 4], ax
 %endmacro
 	%assign	i	0
 	%rep 32
@@ -78,7 +79,7 @@ _Desctab_Install:
 	%endrep
 
 	; Load IDT
-	lidt [_gIDTPtr]
+	lidt [gIDTPtr]
 
 	; Remap PIC
 	push edx	; Save EDX
@@ -116,15 +117,15 @@ _Desctab_Install:
 ; = Define ISRs =
 ; ===============
 %macro	ISR_ERRNO	1
-[global _Isr%1]
-_Isr%1:
+[global Isr%1]
+Isr%1:
 	;xchg bx, bx
 	push	%1
 	jmp	ErrorCommon
 %endmacro
 %macro	ISR_NOERR	1
-[global _Isr%1]
-_Isr%1:
+[global Isr%1]
+Isr%1:
 	xchg bx, bx
 	push	0
 	push	%1
@@ -132,16 +133,16 @@ _Isr%1:
 %endmacro
 
 %macro DEF_SYSCALL	1
-[global _Isr%1]
-_Isr%1:
+[global Isr%1]
+Isr%1:
 	push	0
 	push	%1
 	jmp	SyscallCommon
 %endmacro
 
 %macro DEF_IRQ	1
-[global _Isr%1]
-_Isr%1:
+[global Isr%1]
+Isr%1:
 	;cli	; HACK!
 	push	0
 	push	%1
@@ -185,8 +186,8 @@ DEF_SYSCALL	0xAC	; Acess System Call
 
 ; IRQs
 ; - Timer
-[global _Isr240]
-_Isr240:
+[global Isr240]
+Isr240:
 	push 0
 	jmp SchedulerBase
 ; - Assignable
@@ -199,7 +200,7 @@ _Isr240:
 ; ---------------------
 ; Common error handling
 ; ---------------------
-[extern _ErrorHandler]
+[extern ErrorHandler]
 ErrorCommon:
 	pusha
 	push ds
@@ -208,7 +209,7 @@ ErrorCommon:
 	push gs
 	
 	push esp
-	call _ErrorHandler
+	call ErrorHandler
 	add esp, 4
 	
 	pop gs
@@ -222,7 +223,7 @@ ErrorCommon:
 ; --------------------------
 ; Common System Call Handler
 ; --------------------------
-[extern _SyscallHandler]
+[extern SyscallHandler]
 SyscallCommon:
 	pusha
 	push ds
@@ -231,7 +232,7 @@ SyscallCommon:
 	push gs
 	
 	push esp
-	call _SyscallHandler
+	call SyscallHandler
 	add esp, 4
 	
 	pop gs
@@ -245,7 +246,7 @@ SyscallCommon:
 ; ------------
 ; IRQ Handling
 ; ------------
-[extern _IRQ_Handler]
+[extern IRQ_Handler]
 IRQCommon:
 	pusha
 	push ds
@@ -254,7 +255,7 @@ IRQCommon:
 	push gs
 	
 	push esp
-	call _IRQ_Handler
+	call IRQ_Handler
 	add esp, 4
 	
 	pop gs
@@ -268,7 +269,7 @@ IRQCommon:
 ; --------------
 ; Task Scheduler
 ; --------------
-[extern _Proc_Scheduler]
+[extern Proc_Scheduler]
 SchedulerBase:
 	pusha
 	push ds
@@ -279,7 +280,7 @@ SchedulerBase:
 	mov eax, [esp+12*4]	; CPU Number
 	push eax	; Pus as argument
 	
-	call _Proc_Scheduler
+	call Proc_Scheduler
 	
 	add esp, 4	; Remove Argument