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[bits 32]
global port8_write
global port8_read
; void port8_write( port8_t *port, uint8_t data );
port8_write:
push ebp
mov ebp, esp
mov ecx, [ebp+8]
mov edx, DWORD [ecx]
movzx ax, BYTE [ebp+12]
out dx, al
leave
ret
; uint8_t port8_read( port8_t *port )
port8_read:
push ebp
mov ebp, esp
mov ecx, DWORD [ebp+8]
mov edx, [ecx]
in al, dx
leave
ret
global port16_write
global port16_read
; void port16_write( port16_t *port, uint16_t data );
port16_write:
push ebp
mov ebp, esp
mov ecx, [ebp+8]
mov edx, DWORD [ecx]
mov ax, WORD [ebp+12]
out dx, ax
leave
ret
; uint16_t port16_read( port16_t *port )
port16_read:
push ebp
mov ebp, esp
mov ecx, DWORD [ebp+8]
mov edx, [ecx]
in ax, dx
leave
ret
global port32_write
global port32_read
; void port32_write( port32_t *port, uint32_t data );
port32_write:
push ebp
mov ebp, esp
mov ecx, [ebp+8]
mov edx, DWORD [ecx]
mov eax, DWORD [ebp+12]
out dx, eax
leave
ret
; uint32_t port32_read( port32_t *port )
port32_read:
push ebp
mov ebp, esp
mov ecx, DWORD [ebp+8]
mov edx, [ecx]
in eax, dx
leave
ret
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