rom4x/notes/rom5_zeros.txt
2017-02-15 09:38:59 -08:00

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Inventory of zeros of 5 bytes or more in the IIc Plus ROM
Main Bank
C1FB - 5 bytes
C4EE - 12 bytes
C5F3 - 5 bytes
C6FB - 5 bytes
C9A1 - 9 bytes
CFF9 - 7 bytes - ROM 5X switcher
Aux Bank
C572 - 8 bytes
C7FB - 8 bytes
C7FC - 7 bytes
CE00 - 512 bytes not usable (MIG space)
D134 - 76 bytes
D516 - 234 bytes - ROM 5X boot
D6CE - 306 bytes - ROM 5X misc routines
DB63 - 157 bytes - ROM 5X reset
DE00 - 512 bytes not usable (second view of MIG)
F72D - 16 bytes not usable (some kind of data table)
F7ED - 19 bytes
FB3C - 196 bytes - FBE2 ROM 5X dispatch
- Future: classic beep
FC3C - 12 bytes
FCC9 - 55 bytes
FE96 - 352 bytes - but reserve 65816 vectors
- Future ROM 5X accelerator enhancements