Reduce micro_kernel size

This commit is contained in:
Baptiste Wicht 2013-10-31 16:17:23 +01:00
parent 17ca9458af
commit 47841ce969
3 changed files with 0 additions and 120 deletions

View File

@ -169,16 +169,12 @@ lm_start:
jmp $
; Enter the shell
;call shell_start
; Includes
%include "utils/macros.asm"
%include "utils/console.asm"
%include "interrupts.asm"
%include "shell.asm"
; Global Descriptors Table

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@ -1,4 +1,3 @@
%include "utils/utils.asm"
%include "utils/keyboard.asm"
%include "commands.asm"

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@ -51,47 +51,6 @@ set_current_position:
ret
goto_next_line:
push rax
push rsi
push rdi
; Go to the next line
mov rax, [current_line]
inc rax
mov [current_line], rax
; Start at the first column
mov qword [current_column], 0
cmp rax, 25
jne .end
mov rsi, TRAM + 2 * 0x14 * 8
mov rdi, TRAM + 1 * 0x14 * 8
.scroll_up:
mov al, byte [rsi]
mov byte [rdi], al
inc rsi
inc rdi
cmp rdi, TRAM + 25 * 0x14 * 8
jne .scroll_up
mov rax, 24
mov [current_line], rax
.end:
pop rdi
pop rsi
pop rax
ret
; Print the given string at the current position and update
; the current position for later print
; r8 = string to print
@ -145,77 +104,3 @@ print_string:
pop rax
ret
; Print the given integer at the current position
; r8 = integer to print
print_int_normal:
push rdi
push rdx
call set_current_position
mov dl, STYLE(BLACK_F, WHITE_B)
call print_int
call int_str_length
mov rbx, [current_column]
add rbx, rax
mov [current_column], rbx
pop rdi
pop rdx
ret
; Print the given integer to the console
; r8 = integer to print
; rdi = START of write
; dl = code style
print_int:
push rax
push rbx
push rdx
push r10
push rsi
mov rax, r8
mov r10, rdx
xor rsi, rsi
.loop:
xor rdx, rdx
mov rbx, 10
div rbx
add rdx, 48
push rdx
inc rsi
test rax, rax
jne .loop
.next:
test rsi, rsi
je .exit
dec rsi
; write the char
pop rax
stosb
; Write style code
mov rdx, r10
mov al, dl
stosb
jmp .next
.exit:
pop rsi
pop r10
pop rdx
pop rbx
pop rax
ret