36 lines
466 B
NASM
36 lines
466 B
NASM
; Reads a single character with echo
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; out AL character
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isr_getc_echo:
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xor ax, ax
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int 0x16
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test al, al
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jz isr_getc_echo
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call putc
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iret
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; Reads a single character without echo
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; out AL character
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isr_getc:
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xor ax, ax
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int 0x16
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test al, al
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jz isr_getc
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iret
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; Prints a single character
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; in DL character
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isr_putc:
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push ax
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mov al, dl
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call putc
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pop ax
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iret
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putc:
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push bx
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mov ah, 0x0e
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mov bx, 0x0000
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int 0x10
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pop bx
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ret
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