37 lines
No EOL
506 B
NASM
37 lines
No EOL
506 B
NASM
bits 32
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global outb
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global inb
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global outw
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global inw
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section .text
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outb:
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;word [esp + 4] = port
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;byte [esp + 8] = value
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mov dx, word [esp + 4]
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mov al, byte [esp + 8]
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out dx, al
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ret
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inb:
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;word [esp + 4] = port
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;al out = value
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mov dx, word [esp + 4]
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in al, dx
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ret
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outw:
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;word [esp + 4] = port
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;word [esp + 8] = value
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mov dx, word [esp + 4]
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mov ax, word [esp + 8]
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out dx, ax
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ret
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inw:
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;word [esp + 4] = port
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;ax out = value
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mov dx, word [esp + 4]
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in ax, dx
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ret |