debug.inc

jserv写的orz小内核 有详细的注释

;---------------------------------------------------------------

__dbg_console_name	db "console.library"
__dbg_console_len	equ $ - __dbg_console_name
__dbg_msg		times 5 db 0

__dbg_PrintNum:
	push eax, ebx, ecx, edx, esi, edi

	mov esi, __dbg_console_name
	mov ecx, __dbg_console_len
	xor ebx, ebx
	xor edx, edx
	mov eax, msg_FindTaskByName
	int i_SendMessageW
	push eax

	mov ebx, eax
	mov eax, cons_PrintNumber
	mov esi, __dbg_msg
	mov ecx, 5
	xor edx, edx
	int i_SendMessageW

	mov [__dbg_msg], BYTE 0x0D
	pop ebx
	mov eax, cons_PrintChar
	mov esi, __dbg_msg
	mov ecx, 1
	xor edx, edx
	int i_SendMessageW

	pop edi, esi, edx, ecx, ebx, eax
	ret

__dbg_PrintNumS:
	push eax, ebx, ecx, edx, esi, edi

	mov esi, __dbg_console_name
	mov ecx, __dbg_console_len
	xor ebx, ebx
	xor edx, edx
	mov eax, msg_FindTaskByName
	int i_SendMessageW
	push eax

	mov ebx, eax
	mov eax, cons_PrintNumber
	mov esi, __dbg_msg
	mov ecx, 5
	xor edx, edx
	int i_SendMessageW

	mov [__dbg_msg], BYTE " "
	pop ebx
	mov eax, cons_PrintChar
	mov esi, __dbg_msg
	mov ecx, 1
	xor edx, edx
	int i_SendMessageW

	pop edi, esi, edx, ecx, ebx, eax
	ret

__dbg_PrintStr:
	push eax, ebx, ecx, edx, esi, edi
	push ecx, esi

	mov esi, __dbg_console_name
	mov ecx, __dbg_console_len
	xor ebx, ebx
	xor edx, edx
	mov eax, msg_FindTaskByName
	int i_SendMessageW

	pop esi, ecx
	push eax

	mov ebx, eax
	mov eax, cons_PrintString
	xor edx, edx
	int i_SendMessageW

	mov [__dbg_msg], BYTE 0x0D
	pop ebx
	mov eax, cons_PrintChar
	mov esi, __dbg_msg
	mov ecx, 1
	xor edx, edx
	int i_SendMessageW

	pop edi,esi,edx,ecx,ebx,eax
	ret

__dbg_PrintStrS:
	push eax, ebx, ecx, edx, esi, edi
	push ecx, esi

	mov esi, __dbg_console_name
	mov ecx, __dbg_console_len
	xor ebx, ebx
	xor edx, edx
	mov eax, msg_FindTaskByName
	int i_SendMessageW

	pop esi, ecx
	push eax

	mov ebx, eax
	mov eax, cons_PrintString
	xor edx, edx
	int i_SendMessageW

	mov [__dbg_msg], BYTE " "
	pop ebx
	mov eax, cons_PrintChar
	mov esi, __dbg_msg
	mov ecx, 1
	xor edx, edx
	int i_SendMessageW

	pop edi, esi, edx, ecx, ebx, eax
	ret

;---------------------------------------------------------------