feat(kernel): print klog to screen

kernel/dev/at/cga.inc

@@ -75,7 +75,11 @@ cga_putc:
 	call cga_getpos
 	mov [ebp-0x2], ax
 	pop eax
-
+	cmp al, CR
+	jne @f
+	leave
+	ret
+@@:
 	cmp al, LF
 	jne @f
 	mov ax, [ebp-0x2]

kernel/kernel.asm

@@ -67,8 +67,8 @@ kmain:
 	mov eax, SYSCALL_EXIT
 	int 0x42
 
-	mov al, 'X'
+	;mov al, 'X'
-	call cga_putc
+	;call cga_putc
 
 	call floppy_probe
 

kernel/klog.inc

@@ -34,7 +34,9 @@ klog_print:
 	or al, al
 	jz @f
 	out dx, al
-	;call klog_kput
+	pusha
+	call cga_putc
+	popa
 	jmp @b
 @@:
 	ret
@@ -125,6 +127,9 @@ klog_print_hex:
 .print_zero:
 	mov al, '0'
 	out dx, al
+	pusha
+	call cga_putc
+	popa
 	jmp .end
 .print_number:
 	mov [esi], byte 0
@@ -170,6 +175,9 @@ klog:
 	mov al, '?'
 .putchar:
 	out dx, al
+	pusha
+	call cga_putc
+	popa
 .next:
 	inc esi
 	jmp .loop