* gameboy.xml: remove misleading comment
Sachen 4B-003 was recently added
Signed-off-by: Tauwasser <tauwasser@tauwasser.eu>
* gameboy: fix Super Game Boy VRAM transfer
A basic implementation of VRAM transfer. It fixes a number of games and removes
the SGB border hack. However, it's very likely that the bahvior is much more
complex. The old implementation was good enough for the majority of games,
so this should suffice until such time when SGB is implemented on top of SNES.
The attribute data was resized to 4096 bytes, so a whole VRAM transfer can take place
even though only 4050 bytes are used. The idea is that the whole 4096 bytes are
_probably_ transferred to WRAM and a game might theoretically upload a small executable
and use that data. However, running native SNES code is currently unsupported anyway.
Signed-off-by: Tauwasser <tauwasser@tauwasser.eu>
* gameboy: various code style/comment fixes
- return GB_MBC_NONE instead of magic 0 value
- add MLT_REQ case in sgb code and mention where it's actually handled
- add PAL_PRI to list of known SGB commands (not implemented)
- fix two comments
Signed-off-by: Tauwasser <tauwasser@tauwasser.eu>
* gameboy: coding style fixes for gb_lcd
Signed-off-by: Tauwasser <tauwasser@tauwasser.eu>
* Sort software part menu in internal UI (was ordered by hash)
This preserves the option priority behaviour from 0.187 when setting the
instance option to the desired part.
Note that software part selection from internal UI doesn't actually
work. For example with zorba:cpm, no matter which part you select,
you'll always end up with flop1 in A: and flop2 in B:. This actually
did work properly in 0.187, so something has gone wrong in between.
* Fix some Cocoa debugger desync issues
- Scroll to selection on gaining focus by keyboard (e.g. tab) only
- Fixes jump on clicking a memory or disasm view that you've scrolled
- Fix clock speed for dual POKEY (MT #6631)
- Produce error message when nonexistent file specified rather than create a spurious empty file and segfault trying to read it
- made ds5002fp store internal ram and sfr registers to nvram as they're battery backed
- this includes the 'configuration' details which are actually programmable, so don't belong in the 'MACHINE_CONFIG' section but rather as part of the default NVRAM
- as the exact format of the NVRAM storage is not known, and as not to break compatibility with the 'wrally' set Gaelco offer these bytes are now configured in the ROM LOADING like default NVRAM. Slightly awkward, but probably the best way.
- made the SRAM (external to DS5002FP, but still powered by the same battery) also save content, some games actually use it to store scores etc. as well as the game code.
- cleaned up the Touch and Go Dallas dump, and added some preconfigured internal RAM so that it actually loads the score data from the SRAM properly
- prepared all other drivers for the adding of the SRAM dumps, removing old 'never going to work' simulation code in the process. To do this a wrapper / interface device for the Gaelco Dallas + SRAM box was created.
out of whatsnew
Alligator Hunt was dumped and works, but not yet added, want to verify on a 2nd PCB first as the process does corrupt some bytes and a couple had to be handfixed, so the only way to know for sure is multiple dumps.
