>>1
https://en.wikipedia.org/wiki/Category:Super_Nintendo_Entertainment_System
http://www.villehelin.com/wla.html WLA-65816 Micro Assembler, SPC700も

SNESヘッダとメモリマップ, LoROM, HiROM, FastROM, checksumチェックサム (ROMの),
Interrupt vectors割り込みベクタ, NMI, IRQ,
https://en.wikibooks.org/wiki/Super_NES_Programming/SNES_memory_map　超重要
http://www.smwiki.net/wiki/Internal_ROM_Header
http://www.smwiki.net/wiki/Vector_Info
http://wiki.superfamicom.org/snes/show/Memory+Mapping
FastROMとは：
　Banks $80 - $FF can also be used for faster memory access. Many portions of memory <$80 are accessed at 2.68 MHz (200 ns).
　Accessing memory >$80 is done at 3.58 MHz (120 ns) if the value at address $420d (hardware register) is set to 1.

LoROMなら80:8000~BF:FFFF,
HiROMならC0:0000~FF:FFFF,
RAM 7E:0000~7F:FFFF。