am 1. Februar 2017 um 01:23 schrieben Sie: > this patch is a suggestion for the bootsector to boot on older (like my XT) > machines > where the drive requires a few retries before loading a sector. The > resulting binary > might be too big actually.
that is a clear indication that you did not test this. why do you expect that we do YOUR work ? Tom > In this case I would like a bit of help fitting it in there. > yours, > - Mdasoh Kyaeppd > --- boot.ori/boot.asm 2017-01-30 02:08:55.835437500 -0700 > +++ boot/boot.asm 2017-01-31 13:06:37.742679500 -0700 > @@ -423,7 +423,7 @@ > ; setup LBA disk block > mov LBA_SECTOR_32,bx ; bx is 0 if extended 13h > mode supported > mov LBA_SECTOR_48,bx > - > + mov si,1 > mov ah,042h > jmp short do_int13_read > @@ -472,12 +472,20 @@ > inc cx ; make sector 1-based (1-63) > les bx,[LBA_OFF] > + mov si,5 > +do_chs_read: > mov ax, 0x0201 > do_int13_read: > mov dl, [drive] > - int 0x13 > - jc boot_error ; exit on error > + int 0x13 ; read data from disk > + jnc did_int13_read > + xor ax,ax > + int 0x13 > + dec si > + jz boot_error ; exit on error > + jmp do_chs_read ; prod it a few times > +did_int13_read: > mov ax, word [bsBytesPerSec] > push di > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > _______________________________________________ > Freedos-kernel mailing list > Freedos-kernel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-kernel Mit freundlichen Grüßen/Kind regards Tom Ehlert +49-241-79886 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Freedos-kernel mailing list Freedos-kernel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-kernel
