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Print a dot for each loaded sector in bootloader

This commit is contained in:
Juhani Krekelä 2021-07-06 21:54:34 +03:00
parent 283ed06d7e
commit 89e377bf2d
1 changed files with 12 additions and 11 deletions
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23
boot.asm
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@ -298,9 +298,8 @@ execute_kernel:
jmp 0:0x500 jmp 0:0x500
; Note: bx will point to after the read data ; Note: bx will point to after the read data
; Note: ax, cx, and di will be clobbered ; Note: ax, cx, dx, and di will be clobbered
loadsectors: loadsectors:
push dx
.loop: .loop:
mov di, 3 + 1 ; Retry thrice, + 1 is since we dec first mov di, 3 + 1 ; Retry thrice, + 1 is since we dec first
@ -345,6 +344,9 @@ loadsectors:
jc .error jc .error
mov ax, 0x0e00 + '.'
int 0x10
pop cx pop cx
pop ax pop ax
@ -353,7 +355,6 @@ loadsectors:
loop .loop loop .loop
pop dx
ret ret
.error: .error:
@ -372,12 +373,12 @@ loadsectors:
jmp .retry jmp .retry
fatal_error: fatal_error:
lodsb mov cx, 9
test al, al .loop:
jz hang lodsb
mov ah, 0xe mov ah, 0xe
int 0x10 int 0x10
jmp fatal_error loop .loop
hang: hang:
hlt hlt
@ -389,8 +390,8 @@ ettinos_kernel_cluster dw 0
ettinos_kernel_name db "SYSTEM BIN" ettinos_kernel_name db "SYSTEM BIN"
notfound_msg db "No kernel", 0 notfound_msg db "No kernel"
diskerror_msg db "Disk error", 0 diskerror_msg db "Disk error"
choose_msg db "(E)ttinOS/Nor86?", 0 choose_msg db "(E)ttinOS/Nor86?", 0
times 510-($-$$) db 0 times 510-($-$$) db 0