wok-tiny rev 118

linux/bundle.S: 1-7 sectors kernel support
author Pascal Bellard <pascal.bellard@slitaz.org>
date Sat May 21 17:52:27 2016 +0200 (2016-05-21)
parents 639516fd97da
children e5cfd000e4a6
files linux/stuff/bundle.S
line diff
     1.1 --- a/linux/stuff/bundle.S	Sun Apr 03 09:06:20 2016 +0200
     1.2 +++ b/linux/stuff/bundle.S	Sat May 21 17:52:27 2016 +0200
     1.3 @@ -13,15 +13,12 @@
     1.4  	movw	%di, %sp
     1.5  
     1.6  	// patch disk parameter table
     1.7 -	xorw	%ax, %ax
     1.8 +	xorw	%cx, %cx
     1.9  	movw	$0x78, %bx
    1.10 -	movw	%ax, %ds
    1.11 +	movw	%cx, %ds
    1.12  	ldsw	(%bx), %si	
    1.13  	pushw	%ss
    1.14  	popw	%es
    1.15 -	movw	$64/2, %cx
    1.16 -	rep
    1.17 -	 stosw
    1.18  	movb	$6, %cl
    1.19  	pushw	%di
    1.20  	rep
    1.21 @@ -66,8 +63,8 @@
    1.22  	lodsw		// CRC16
    1.23  	lodsw		// sector count
    1.24  #endif
    1.25 -	cmpw	%bx, (%si)
    1.26 -	jnc	menulp
    1.27 +	cmpw	$0, (%si)
    1.28 +	jne	menulp
    1.29  #ifdef CHECK_FILES
    1.30  	movw	$msgcrc, %si
    1.31  	movb	$' ', %al
    1.32 @@ -150,10 +147,13 @@
    1.33  	movw	%bx, %di
    1.34  scanboot:
    1.35  	incw	%di
    1.36 +	cmpw	%bx, %di
    1.37 +	je	found
    1.38  	cmpw	$0x5897, -3(%di)	// xchgw %ax, %di; popw	%ax
    1.39  	jne	scanboot
    1.40  	cmpw	$0xE841, -1(%di)	// incw %cx ; call ...
    1.41  	jne	scanboot
    1.42 +found:
    1.43  	pushw	%ds
    1.44  	pushw	%di
    1.45  	movb	0x1F1(%bx), %al		// setup size