shrink preload

QBOOT.S

@@ -93,7 +93,6 @@ indextbl        ;the 0 also terminates the patchtbl list!
         sta     preshift-$16, y
 +       dey
         bne     --
-        sty     curtrk+1
 
         ;construct 2-bit group table
 
@@ -331,7 +330,7 @@ seek
         sta     step+1
 copy_cur
 curtrk
-        lda     #$d1
+        lda     #0
         sta     tmpval+1
         sec
 phase

README.md

@@ -3,7 +3,7 @@
 - scatter-reads sectors
 - sector-level read, can start and end anywhere in a track
 - can perform full-track read in one revolution
-- no zpage usage after init
+- no zpage usage after init, and only 6 bytes of stack
 - only 2 bytes overhead per read
 - can load up to $bc sectors at a time ($0100-bcff)
 - DOS 3.3 Launcher compatible