--- np2/romimage/Attic/BIOSBOOT.ASM 2004/01/22 01:11:29 1.4 +++ np2/romimage/Attic/BIOSBOOT.ASM 2004/03/19 00:30:01 1.5 @@ -1,69 +1,3 @@ -.186 -CODE SEGMENT - ASSUME CS:CODE,DS:nothing,ES:nothing,SS:nothing - ORG 0000H - -FIXCS equ 2eh - -START: xor ax, ax - mov ds, ax - mov al, 30h - mov ss, ax - mov sp, 00feh - - sti - mov word ptr ds:[04ach], 0ch - call diskbios_set -diskbiosinit1: mov es, ds:[04aeh] - cmp word ptr es:[0009h], 0aa55h - jne short nextparag1 - mov al, [bx] - or al, al - jne short nextparag1 - call calldiskbios -nextparag1: inc bx - inc byte ptr ds:[04afh] - loop short diskbiosinit1 - - mov word ptr ds:[04ach], 0fh - call diskbiosinit2 - mov word ptr ds:[04ach], 12h - call diskbiosinit2 - - db 9ah ; call far - dw 027e8h - dw 0fd80h - - in al, 31h - test al, 1 - jne short callbasic - int 1fh -callbasic: int 1eh - -diskbios_set: mov bx, 04d0h - mov cx, 0010h - mov word ptr ds:[04aeh], 0d000h - ret - -diskbiosinit2: call diskbios_set -dbi2_lp: test byte ptr [bx], 40h - je short dbi2_next - call calldiskbios -dbi2_next: inc bx - inc byte ptr ds:[04afh] - loop short dbi2_lp - ret - -calldiskbios: push ax - push bx - push cx - call dword ptr ds:[04ach] - pop cx - pop bx - pop ax - ret - -CODE ENDS - END START +; ¤¤¤é¤Í