/* Search for the sequence:
**
** ldx #0
-** and #mask (any value < 128)
+** and #mask (any value < 0x80)
** jsr aslax1/shlax1
** clc
** adc #<(label+0)
**
** and replace it by:
**
-** ldx #0
-** and #mask (remove if == 127)
-** asl
-** tay
-** lda label,y
-** ldx label+1,y
+** and #mask (remove if == 0x7F)
+** asl
+** tay
+** lda label,y
+** ldx label+1,y
*/