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| author | Alexis211 <alexis211@gmail.com> | 2010-02-05 17:33:08 +0100 |
|---|---|---|
| committer | Alexis211 <alexis211@gmail.com> | 2010-02-05 17:33:08 +0100 |
| commit | 674014901a1e90ce1587a7709fe9bf5893b0e36e (patch) | |
| tree | 0696d09e4a185413df75f8e3ef413b5ae81a090d /src/stem/core | |
| parent | 6d849bc12d6afe2fe239c5a7dc581ba76d67974b (diff) | |
| download | TCE-674014901a1e90ce1587a7709fe9bf5893b0e36e.tar.gz TCE-674014901a1e90ce1587a7709fe9bf5893b0e36e.zip | |
Start work on syscalls, advanced tasking, segmentation
Diffstat (limited to 'src/stem/core')
| -rw-r--r-- | src/stem/core/loader_.asm | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/src/stem/core/loader_.asm b/src/stem/core/loader_.asm index e1031b4..d3b92cf 100644 --- a/src/stem/core/loader_.asm +++ b/src/stem/core/loader_.asm @@ -1,8 +1,7 @@ [GLOBAL loader] ; making entry point visible to linker [EXTERN kmain] ; kmain is defined in kmain.c +[EXTERN tasking_tmpStack] ; a temporary 4k stack used by tasking, and used when setting up kernel stuff -STACKSIZE equ 0x4000 ; that's 16k. - ; setting up the Multiboot header - see GRUB docs for details MODULEALIGN equ 1<<0 ; align loaded modules on page boundaries MEMINFO equ 1<<1 ; provide memory map @@ -32,7 +31,7 @@ loader: ;here, we load our false GDT, used for having the kernel in higher half section .text higherhalf: ; now we're running in higher half - mov esp, stack+STACKSIZE ; set up the stack + mov esp, tasking_tmpStack+0x4000 ; set up the stack push eax ; pass Multiboot magic number add ebx, 0xE0000000 ; update the MB info structure so that it is in the new seg push ebx ; pass Multiboot info structure @@ -56,8 +55,3 @@ gdt: db 0xFF, 0xFF, 0, 0, 0, 10010010b, 11001111b, 0x20 ; kernel data segment gdt_end: - -[section .bss] -align 32 -stack: - resb STACKSIZE ; reserve 16k stack on a quadword boundary |