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Make output code work also on the original IBM PC

This commit is contained in:
Juhani Krekelä 2021-06-30 23:22:09 +03:00
parent 7e41612687
commit 3f4c6c0559
1 changed files with 2 additions and 1 deletions
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3
bootsect.asm
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@ -68,12 +68,13 @@ _start:
mov [drivenumber], dl mov [drivenumber], dl
select_os: select_os:
mov ah, 0xe
mov si, prompt mov si, prompt
.print: .print:
lodsb lodsb
test al, al test al, al
jz .end jz .end
; On the original IBM PC BIOS the int 0x10 will clobber this
mov ah, 0xe
int 0x10 int 0x10
jmp .print jmp .print
.end: .end: