# HG changeset patch
# User TomW
# Date 1408559843 -3600
# Node ID a221bebd5ff315774c950395fc6b89520c859625
# Parent  21f926f1fabf8e475eb865e273d87a0c1a765e41
Fixed IDE transfers of 256 sectors, Windows 2000 now works.

diff -r 21f926f1fabf -r a221bebd5ff3 src/ide.c
--- a/src/ide.c	Mon Aug 18 20:28:31 2014 +0100
+++ b/src/ide.c	Wed Aug 20 19:37:23 2014 +0100
@@ -1059,7 +1059,7 @@
                         ide->packetstatus=0;
                         if (ide->command == WIN_READ || ide->command == WIN_READ_NORETRY || ide->command == WIN_READ_MULTIPLE)
                         {
-                                ide->secount--;
+                                ide->secount = (ide->secount - 1) & 0xff;
                                 if (ide->secount)
                                 {
                                         ide_next_sector(ide);
@@ -1187,7 +1187,7 @@
                                 /*DMA successful*/
                                 ide->atastat = DRQ_STAT | READY_STAT | DSC_STAT;
 
-                                ide->secount--;
+                                ide->secount = (ide->secount - 1) & 0xff;
                                 if (ide->secount)
                                 {
                                         ide_next_sector(ide);
@@ -1239,7 +1239,7 @@
                 fseeko64(ide->hdfile, addr, SEEK_SET);
                 fwrite(ide->buffer, 512, 1, ide->hdfile);
                 ide_irq_raise(ide);
-                ide->secount--;
+                ide->secount = (ide->secount - 1) & 0xff;
                 if (ide->secount)
                 {
                         ide->atastat = DRQ_STAT | READY_STAT | DSC_STAT;
@@ -1271,7 +1271,7 @@
                                 
                                 ide->atastat = DRQ_STAT | READY_STAT | DSC_STAT;
 
-                                ide->secount--;
+                                ide->secount = (ide->secount - 1) & 0xff;
                                 if (ide->secount)
                                 {
                                         ide_next_sector(ide);
@@ -1304,7 +1304,7 @@
                         ide->blockcount = 0;
                         ide_irq_raise(ide);
                 }
-                ide->secount--;
+                ide->secount = (ide->secount - 1) & 0xff;
                 if (ide->secount)
                 {
                         ide->atastat = DRQ_STAT | READY_STAT | DSC_STAT;