SpiderScript - Speedups

[tpg/acess2.git] / Kernel / arch / x86 / start.asm

diff --git a/Kernel/arch/x86/start.asm b/Kernel/arch/x86/start.asm
index 0a4f920..4be4130 100644 (file)
--- a/Kernel/arch/x86/start.asm
+++ b/Kernel/arch/x86/start.asm
@@ -59,6 +59,8 @@ mboot:
 [extern kmain]
 [global start]
 start:
+       ; Just show we're here
+       mov WORD [0xB8000], 0x0741      ; 'A'
        
        ; Set up stack
        mov esp, Kernel_Stack_Top
@@ -71,13 +73,20 @@ start:
        or      ecx, 0x80010000 ; PG and WP
        mov cr0, ecx
        
+       mov WORD [0xB8002], 0x0763      ; 'c'
+       mov WORD [0xB8004], 0x0765      ; 'e'
+       
        lea ecx, [.higherHalf]
        jmp ecx
 .higherHalf:
+       
+       mov WORD [0xB8006], 0x0773      ; 's'
+       mov WORD [0xB8008], 0x0773      ; 's'
 
        ; Call the kernel
        push ebx        ; Multiboot Info
        push eax        ; Multiboot Magic Value
+       mov WORD [0xB800A], 0x0732      ; '2'
        call kmain
 
        ; Halt the Machine
@@ -118,8 +127,8 @@ APStartup:
        mov ds, ax
        lgdt [DWORD ds:lGDTPtr-KERNEL_BASE-0xFFFF0]
        mov eax, cr0
-       or      al, 1
-       mov     cr0, eax
+       or al, 1
+       mov cr0, eax
        jmp 08h:DWORD .ProtectedMode-KERNEL_BASE
 [bits 32]
 .ProtectedMode:
@@ -134,7 +143,7 @@ APStartup:
        mov eax, gaInitPageDir - KERNEL_BASE
        mov cr3, eax
        mov eax, cr0
-       or      eax, 0x80010000 ; PG and WP
+       or eax, 0x80010000      ; PG and WP
        mov cr0, eax
        ; Jump to higher half
        lea eax, [.higherHalf]
@@ -222,7 +231,7 @@ CallWithArgArray:
 align 0x1000
 gaInitPageDir:
        dd      gaInitPageTable-KERNEL_BASE+3   ; 0x000 - Low kernel
-       times 0x300-1   dd      0
+       times 0x300-0x000-1     dd      0
        dd      gaInitPageTable-KERNEL_BASE+3   ; 0xC00 - High kernel
        times 0x3F0-0x300-1     dd      0
        dd      gaInitPageDir-KERNEL_BASE+3     ; 0xFC0 - Fractal