I'll mention one. There were already several mappings to the physical address for the page map ( 00ffa000 ). Not knowing this (how could I know). I set up the mapping at fedfa000, but I could have used the one at fede4000 or any of the others.
There are several duplicate mappings for the scc and three for the lance ethernet.
Take your pick! There is only one for the printer though.
Here is an idea. There are two mappings for the eeprom/idprom. The official one at fef04000 has software limits in the bootrom that prohibit that address from being used to modify the IDPROM values, but perhaps the other mapping at fed84000 is not restricted. This would be something to try out the next time I need to hand craft the IDPROM values.
fed80000 62000000 scc - kb/mouse fed82000 62002000 scc - serial fed84000 64000000 eeprom fed86000 64000800 fed88000 61001000 fed8a000 61001400 fed8c000 --- fed8e000 65002000 lance ethernet fed90000 --- fed92000 66002000 fed94000 --- fed96000 61000000 fed98000 61000400 fed9a000 61000800 fed9c000 61000c00 fed9e000 50300000 feda0000 --- feda2000 --- feda4000 --- feda6000 --- feda8000 --- fedaa000 --- fedac000 --- fedae000 --- fedb0000 --- fedb2000 --- fedb4000 --- fedb6000 --- fedb8000 --- fedba000 --- fedbc000 --- fedbe000 --- fedc0000 --- fedc2000 --- fedc4000 --- fedc6000 --- fedc8000 --- fedca000 --- fedcc000 --- fedce000 --- fedd0000 --- fedd2000 --- fedd4000 --- fedd6000 --- fedd8000 --- fedda000 --- feddc000 --- fedde000 --- fede0000 00ffe000 fede2000 --- fede4000 00ffa000 fede6000 60000000 fede8000 --- fedea000 --- fedec000 --- fedee000 --- fedf0000 --- fedf2000 00ffc000 fedf4000 00ffa000 fedf6000 --- fedf8000 --- fedfa000 00ffa000 fedfc000 --- fedfe000 --- fee00000 --- fee02000 --- fee04000 --- fee06000 --- fee08000 --- fee0a000 --- fee0c000 --- fee0e000 --- fee10000 --- fee12000 --- fee14000 --- fee16000 --- fee18000 --- fee1a000 --- fee1c000 --- fee1e000 --- fee20000 --- fee22000 --- fee24000 --- fee26000 --- fee28000 --- fee2a000 --- fee2c000 --- fee2e000 --- fee30000 --- fee32000 --- fee34000 --- fee36000 --- fee38000 --- fee3a000 --- fee3c000 --- fee3e000 --- fee40000 --- fee42000 --- fee44000 --- fee46000 --- fee48000 --- fee4a000 --- fee4c000 --- fee4e000 --- fee50000 --- fee52000 --- fee54000 --- fee56000 --- fee58000 --- fee5a000 --- fee5c000 --- fee5e000 --- fee60000 --- fee62000 --- fee64000 --- fee66000 --- fee68000 --- fee6a000 --- fee6c000 --- fee6e000 --- fee70000 --- fee72000 --- fee74000 --- fee76000 --- fee78000 --- fee7a000 --- fee7c000 --- fee7e000 --- fee80000 --- fee82000 --- fee84000 --- fee86000 --- fee88000 --- fee8a000 --- fee8c000 --- fee8e000 --- fee90000 --- fee92000 --- fee94000 --- fee96000 --- fee98000 --- fee9a000 --- fee9c000 --- fee9e000 --- feea0000 --- feea2000 --- feea4000 --- feea6000 --- feea8000 --- feeaa000 --- feeac000 --- feeae000 --- feeb0000 --- feeb2000 --- feeb4000 --- feeb6000 --- feeb8000 --- feeba000 --- feebc000 --- feebe000 --- feec0000 --- feec2000 --- feec4000 --- feec6000 --- feec8000 --- feeca000 --- feecc000 --- feece000 --- feed0000 --- feed2000 --- feed4000 --- feed6000 --- feed8000 --- feeda000 --- feedc000 --- feede000 --- feee0000 --- feee2000 --- feee4000 --- feee6000 --- feee8000 --- feeea000 --- feeec000 --- feeee000 --- feef0000 --- feef2000 --- feef4000 --- feef6000 --- feef8000 --- feefa000 --- feefc000 --- feefe000 --- fef00000 62000000 scc - kb/mouse fef02000 62002000 scc - serial fef04000 64000000 eeprom fef06000 64000800 fef08000 61001000 fef0a000 61001400 fef0c000 --- fef0e000 65002000 lance ethernet fef10000 --- fef12000 66002000 fef14000 --- fef16000 61000000 fef18000 61000400 fef1a000 61000800 fef1c000 61000c00 fef1e000 50300000 fef20000 --- fef22000 --- fef24000 --- fef26000 --- fef28000 --- fef2a000 --- fef2c000 --- fef2e000 --- fef30000 --- fef32000 --- fef34000 --- fef36000 --- fef38000 --- fef3a000 --- fef3c000 --- fef3e000 --- fef40000 --- fef42000 --- fef44000 --- fef46000 --- fef48000 --- fef4a000 --- fef4c000 --- fef4e000 --- fef50000 --- fef52000 --- fef54000 --- fef56000 --- fef58000 --- fef5a000 --- fef5c000 --- fef5e000 --- fef60000 00ffe000 fef62000 --- fef64000 00ffa000 fef66000 60000000 fef68000 --- fef6a000 --- fef6c000 --- fef6e000 --- fef70000 --- fef72000 00ffc000 fef74000 00ffa000 fef76000 --- fef78000 --- fef7a000 00ffa000 fef7c000 --- fef7e000 --- fef80000 6f000000 printer fef82000 65002000 lance ethernet fef84000 66000000 fef86000 66000000 fef88000 66000000 fef8a000 66000000 fef8c000 --- fef8e000 --- fef90000 --- fef92000 --- fef94000 --- fef96000 --- fef98000 --- fef9a000 --- fef9c000 --- fef9e000 --- fefa0000 --- fefa2000 --- fefa4000 --- fefa6000 --- fefa8000 --- fefaa000 --- fefac000 --- fefae000 --- fefb0000 --- fefb2000 --- fefb4000 --- fefb6000 --- fefb8000 --- fefba000 --- fefbc000 --- fefbe000 --- fefc0000 --- fefc2000 --- fefc4000 --- fefc6000 --- fefc8000 --- fefca000 --- fefcc000 --- fefce000 --- fefd0000 --- fefd2000 --- fefd4000 --- fefd6000 --- fefd8000 --- fefda000 --- fefdc000 --- fefde000 --- fefe0000 63000000 fefe2000 63002000 fefe4000 63004000 fefe6000 63006000 fefe8000 63008000 fefea000 6300a000 fefec000 6300c000 fefee000 6300e000 feff0000 63010000 feff2000 63012000 feff4000 63014000 feff6000 63016000 feff8000 63018000 feffa000 6301a000 feffc000 6301c000 feffe000 6301e000 fff00000 00ff8000 fff02000 00ff6000 fff04000 00ff4000 fff06000 00e06000 fff08000 00e08000 fff0a000 00e0a000 fff0c000 00e0c000 fff0e000 00e0e000 fff10000 00e10000 fff12000 00e12000 fff14000 00e14000 fff16000 00e16000 fff18000 00e18000 fff1a000 00e1a000 fff1c000 00e1c000 fff1e000 00e1e000 fff20000 00e20000 fff22000 00e22000 fff24000 00e24000 fff26000 00e26000 fff28000 00e28000 fff2a000 00e2a000 fff2c000 00e2c000 fff2e000 00e2e000 fff30000 00e30000 fff32000 00e32000 fff34000 00e34000 fff36000 00e36000 fff38000 00e38000 fff3a000 00e3a000 fff3c000 00e3c000 fff3e000 00e3e000 fff40000 00e40000 fff42000 00e42000 fff44000 00e44000 fff46000 00e46000 fff48000 00e48000 fff4a000 00e4a000 fff4c000 00e4c000 fff4e000 00e4e000 fff50000 00e50000 fff52000 00e52000 fff54000 00e54000 fff56000 00e56000 fff58000 00e58000 fff5a000 00e5a000 fff5c000 00e5c000 fff5e000 00e5e000 fff60000 00e60000 fff62000 00e62000 fff64000 00e64000 fff66000 00e66000 fff68000 00e68000 fff6a000 00e6a000 fff6c000 00e6c000 fff6e000 00e6e000 fff70000 00e70000 fff72000 00e72000 fff74000 00e74000 fff76000 00e76000 fff78000 00e78000 fff7a000 00e7a000 fff7c000 00e7c000 fff7e000 00e7e000 fff80000 00e80000 fff82000 00e82000 fff84000 00e84000 fff86000 00e86000 fff88000 00e88000 fff8a000 00e8a000 fff8c000 00e8c000 fff8e000 00e8e000 fff90000 00e90000 fff92000 00e92000 fff94000 00e94000 fff96000 00e96000 fff98000 00e98000 fff9a000 00e9a000 fff9c000 00e9c000 fff9e000 00e9e000 fffa0000 00ea0000 fffa2000 00ea2000 fffa4000 00ea4000 fffa6000 00ea6000 fffa8000 00ea8000 fffaa000 00eaa000 fffac000 00eac000 fffae000 00eae000 fffb0000 00eb0000 fffb2000 00eb2000 fffb4000 00eb4000 fffb6000 00eb6000 fffb8000 00eb8000 fffba000 00eba000 fffbc000 00ebc000 fffbe000 00ebe000 fffc0000 00ec0000 fffc2000 00ec2000 fffc4000 00ec4000 fffc6000 00ec6000 fffc8000 00ec8000 fffca000 00eca000 fffcc000 00ecc000 fffce000 00ece000 fffd0000 00ed0000 fffd2000 00ed2000 fffd4000 00ed4000 fffd6000 00ed6000 fffd8000 00ed8000 fffda000 00eda000 fffdc000 00edc000 fffde000 00ede000 fffe0000 00ee0000 fffe2000 00ee2000 fffe4000 00ee4000 fffe6000 00ee6000 fffe8000 00ee8000 fffea000 00eea000 fffec000 00eec000 fffee000 00eee000 ffff0000 00ef0000 ffff2000 00ef2000 ffff4000 00ef4000 ffff6000 00ef6000 ffff8000 00ef8000 ffffa000 00efa000 ffffc000 00efc000 ffffe000 00ffc000
Tom's Computer Info / tom@mmto.org