mist: the track0 load bug wasn't an AppleWin bug after all

was a qboot bug
2020-09-03 18:35:33 -04:00 · 2020-09-03 18:35:33 -04:00 · cc617a59de
parent 173ca45680
commit cc617a59de
3 changed files with 6 additions and 4 deletions
--- a/disk_bug/README
+++ b/disk_bug/README
@ -1,3 +1,5 @@
+NOTE: in the end this was a bug in qkumba's qboot, not AppleWin
+
 this is a test case for a possible AppleWin bug

 there is possibly a bug in AppleWin 1.29.14.0 when the disk2 drive
--- a/disk_bug/qboot_stage2.s
+++ b/disk_bug/qboot_stage2.s
@ -244,8 +244,8 @@ seekret:
 	rts

 seek:
-	lda	#0
-	sta	step+1
+	ldx	#0
+	stx	step+1
 copy_cur:
 curtrk:
 	lda	#0
--- a/mist/qboot_stage2.s
+++ b/mist/qboot_stage2.s
@ -244,8 +244,8 @@ seekret:
 	rts

 seek:
-	lda	#0
-	sta	step+1
+	ldx	#0
+	stx	step+1
 copy_cur:
 curtrk:
 	lda	#0