5 Commits

Author	SHA1	Message	Date
Virgil Dupras	97a46a7b9b	emul/z80: decouple SDC and SPI ... My idea of plugging a RC2014 bridge directly onto a Sega Master System cartridge doesn't work. The SMS eats all I/O addr space, we can't use it. Therefore, this naive idea, in the emulator, of reusing sdc.c in sms.c as-is, doesn't work either. I'll have to find another way of communicating to a SPI device on the SMS. I'll probably do it through a controller port. Meanwhile, I need to decouple SPI from SDC in the emulator code so that I can reuse sdc.c. This is what is done here.	2020-10-29 15:01:25 -04:00
Virgil Dupras	705d68deec	Move most of the high layer of comp core into the low one ... With KEY and EMIT being switch words, most of the high layer can be defined before drivers. In addition to this change, I've compacted core blocks which were becoming quite sparse.	2020-10-28 18:18:00 -04:00
Virgil Dupras	6947fea2a8	emul/z80: add SD card support to SMS ... It works (in emulation, but soon on real hardware!), but the LIST command is awkward due to tight screen estate...	2020-10-25 16:53:58 -04:00
Virgil Dupras	490eceab6d	emul/z80: flatten directory structure ... I'm about to reuse sdc.c in sms.c and the old directory structure was becoming awkward.	2020-10-25 15:58:00 -04:00
Virgil Dupras	efe4b13a4e	Move /emul to /emul/z80 ... I'm planning on adding other subfolders. 8086 for example...	2020-10-24 16:50:22 -04:00