Divmmc Entry Points 1

From SpecNext official Wiki
Revision as of 12:11, 3 November 2024 by Sol HSA (talk | contribs) (Created page with "{{NextRegister |Number=$BB |Readable=Yes |Writable=Yes |ShortDesc=DivMMC automap control }} bit 7 = 1 to enable automap on addresses 0x3DXX (instruction fetch, instant, ROM3...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
Number $BB
Readable Yes
Writable Yes
Short Description DivMMC automap control
 bit 7 = 1 to enable automap on addresses 0x3DXX (instruction fetch, instant, ROM3) > TRDOS (soft reset = 1)
 bit 6 = 1 to disable automap on addresses 0x1FF8-0x1FFF (instruction fetch, delayed)  (soft reset = 1)
 bit 5 = 1 to enable automap on address 0x056A (instruction fetch, delayed, ROM3)   \ tape traps  (soft reset = 0)
 bit 4 = 1 to enable automap on address 0x04D7 (instruction fetch, delayed, ROM3)   / nextzxos (better compatibility)  (soft reset = 0)
 bit 3 = 1 to enable automap on address 0x0562 (instruction fetch, delayed, ROM3)   \ tape traps  (soft reset = 1)
 bit 2 = 1 to enable automap on address 0x04C6 (instruction fetch, delayed, ROM3)   / esxdos + original divmmc  (soft reset = 1)
 bit 1 = 1 to enable automap on address 0x0066 (instruction fetch + button, instant) (soft reset = 0)
 bit 0 = 1 to enable automap on address 0x0066 (instruction fetch + button, delayed)  (soft reset = 1)

soft reset = 0xCD