From 20c9844ca086de197a688babdd6d24a1e040c3d2 Mon Sep 17 00:00:00 2001 From: Poul-Henning Kamp Date: Mon, 1 May 1995 04:05:27 +0000 Subject: start CHS is 0xff,0xff,0xff if past 1024. end CHS is 1023,bios_hd,bios_sect if past 1024. This way we can find bios the geometry again. Added a primitive "scan" to tst01. --- lib/libdisk/write_disk.c | 29 ++++++++++++----------------- 1 file changed, 12 insertions(+), 17 deletions(-) (limited to 'lib/libdisk/write_disk.c') diff --git a/lib/libdisk/write_disk.c b/lib/libdisk/write_disk.c index c97727c8cad5..818076a3ca9e 100644 --- a/lib/libdisk/write_disk.c +++ b/lib/libdisk/write_disk.c @@ -151,7 +151,6 @@ Write_Disk(struct disk *d1) dp[j].dp_ssect = 0xff; dp[j].dp_shd = 0xff; dp[j].dp_scyl = 0xff; - } else { dp[j].dp_ssect = i % d1->bios_sect; i -= dp[j].dp_ssect++; @@ -163,26 +162,22 @@ Write_Disk(struct disk *d1) i -= dp[j].dp_scyl; dp[j].dp_ssect |= i >> 2; } + printf("S:%lu = (%x/%x/%x)", c1->offset,dp[j].dp_scyl,dp[j].dp_shd,dp[j].dp_ssect); i = c1->end; - if (i >= 1024*d1->bios_sect*d1->bios_hd) { - dp[j].dp_esect = 0xff; - dp[j].dp_ehd = 0xff; - dp[j].dp_ecyl = 0xff; - } else { - dp[j].dp_esect = i % d1->bios_sect; - i -= dp[j].dp_esect++; - i /= d1->bios_sect; - dp[j].dp_ehd = i % d1->bios_hd; - i -= dp[j].dp_ehd; - i /= d1->bios_hd; - dp[j].dp_ecyl = i; - i -= dp[j].dp_ecyl; - dp[j].dp_esect |= i >> 2; - - } + dp[j].dp_esect = i % d1->bios_sect; + i -= dp[j].dp_esect++; + i /= d1->bios_sect; + dp[j].dp_ehd = i % d1->bios_hd; + i -= dp[j].dp_ehd; + i /= d1->bios_hd; + if (i>1023) i = 1023; + dp[j].dp_ecyl = i; + i -= dp[j].dp_ecyl; + dp[j].dp_esect |= i >> 2; + printf(" E:%lu = (%x/%x/%x)\n", c1->end,dp[j].dp_ecyl,dp[j].dp_ehd,dp[j].dp_esect); -- cgit v1.3