collapseos/arch/z80/sms/blk
Virgil Dupras be52fb1383 sms/vdp: fix bad mirroring
On the real machine, I ended up at some point getting a weird "bottom
mirroring" issue. It turns out that it was because when I revamped my
VDP flags in an earlier commit, I hadn't read the whole technical
notes about register $02 and falsely thought that B0 was ignored. No
it's not. When set, it mirrors the bottom 8 rows.
2020-11-09 14:56:25 -05:00
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605 sms/vdp: fix bad mirroring 2020-11-09 14:56:25 -05:00
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607 sms/vdp: clear rest of line on line feed 2020-11-08 16:43:37 -05:00
608 sms/vdp: clear rest of line on line feed 2020-11-08 16:43:37 -05:00
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622 sms/spi: sample DO when CLK is high 2020-11-08 10:24:36 -05:00
625 sms: CPORT_CTL is write-only! 2020-11-08 08:43:24 -05:00
626 sms: CPORT_CTL is write-only! 2020-11-08 08:43:24 -05:00