ack/plat/pc86/libsys/_sys_rawwrite.s

38 lines
467 B
ArmAsm

#
! $Source$
! $State$
! $Revision$
! Declare segments (the order is important).
.sect .text
.sect .rom
.sect .data
.sect .bss
.sect .text
! Writes a single byte to the console.
.define __sys_rawwrite
.extern __sys_rawwrite
__sys_rawwrite:
push bp
mov bp, sp
! Write to the BIOS console.
movb al, 4(bp)
movb ah, 0x0E
mov bx, 0x0007
int 0x10
! Also write to the serial port (used by the test suite).
movb ah, 0x01
xor dx, dx
int 0x14
jmp .cret