=====================
 Sunsoft Mapper Info
=====================

date 5/20
by goroh
mail goroh_kun@geocities.co.jp

Batman, Dotchi Bullet Pei, etc.  (mapper #69)
8000 command
A000 argument
  #0 : CHR page_number at $0000-$03FF
  #1 : CHR page_number at $0400-$07FF
  #2 : CHR page_number at $0800-$0bFF
  #3 : CHR page_number at $0c00-$0fFF
  #4 : CHR page_number at $1000-$13FF
  #5 : CHR page_number at $1400-$17FF
  #6 : CHR page_number at $1800-$1bFF
  #7 : CHR page_number at $1c00-$13FF
  #8 : PRG page_number at $6000-$7FFF
  #9 : PRG page_number at $8000-$9FFF
  #A : PRG page_number at $A000-$BFFF
  #B : PRG page_number at $C000-$DFFF
  #C : Mirror
     bit ------MM
     MM 0: VHVH
        1: VVHH
        2: VVVV
        3: HHHH
  #D : IRQ enable/disable
    #00: disable
    #81: enable
  #E : IRQ clock Lower 1 byte
  #F : IRQ clock Higher 1 byte

If you study, the IRQ inputs 0 to standby clock with a word, the
IRQ occurs with the next clock.  If you input i, the IRQ occurs
after i+1 clock cycles.

Afterburner 2, Maharajah etc.
8000: CHR page_number at CHR $0000-$07FF (page_size=index_size=2k)
9000: CHR page_number at CHR $0800-$0FFF (page_size=index_size=2k)
A000: CHR page_number at CHR $1000-$17FF (page_size=index_size=2k)
B000: CHR page_number at CHR $1800-$1FFF (page_size=index_size=2k)
C000: CHR page_number at NameTable(VRAM_A10=L) (page_size=index_size=1k)
D000: CHR page_number at NameTable(VRAM_A10=H) (page_size=index_size=1k)
E000: Mirror, NameTable usage Setting
  bit ---A--MM
    A: Use CHR-ROM at NameTable 0:Disable 1:Enable
   MM: VRAM_A10 Setting
        00: L H L H
        01: L L H H
        02: L L L L
        03: H H H H