30 lines
311 B
Plaintext
30 lines
311 B
Plaintext
;Reads a character to AL
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readch:
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;Store the initial registers
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push bx
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push ax
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;Read a keypress
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mov ah, 0x0
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int 0x16
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;Check for non-printing characters
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cmp al, 0x1f
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jle readch
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cmp al, 0x7f
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je readch
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;Print the character
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mov ah, 0xe
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int 0x10
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;Load the initial registers
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pop bx
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mov ah, bh
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pop bx
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.done:
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ret
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