5 Commits

Author	SHA1	Message	Date
Virgil Dupras	ce10320030	emul/z80/sms: add SPI exchange through controller port ... Theoretically, it works. I can access an emulated SD card on it. Will it work on real hardware? I've also made SMS emulation faster. It was unbearably slow for SDC access.	2020-10-29 19:42:19 -04:00
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	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