Charset Inspector (from RAM)
Shows characters 32-127 as read from RAM. Empty = ROM not yet copied charset data.
Memory Map
$0000-$00FF Zero Page
$0100-$01FF Stack
$0200-$02FF System Variables
$0300-$030F 6522 VIA I/O
$0400-$97FF User RAM (~37KB)
$9800-$9AFF Charset STD (HIRES) ← ROM $F400
$9C00-$9EFF Charset ALT (HIRES) ← ROM $F700
$A000-$BFDF HIRES screen data
$B400-$B6FF Charset STD (TEXT) ← ROM $F400
$B800-$BAFF Charset ALT (TEXT) ← ROM $F700
$BB80-$BFDF TEXT screen (40×28)
$C000-$ECC3 ROM: BASIC routines
$ECC4-$EFFF ROM: OS routines
$F400-$F6FF ROM: Standard Charset source
$F700-$F9FF ROM: Alternate Charset source
$FA00-$FFFF ROM: OS routines, vectors