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collapseos/arch/z80
Virgil Dupras 7d568bd782 sms: simplify and solidify ports-related drivers
Add _TRA!, _THA!, _TRB!, _THB! routines to easily handle those pins'
value without stepping on other pins like the drivers previously
did. For SDC driver, it's going to be important soon because it turns
out that I can't get away with "always on" CS, so I'll need a scheme
where it's important that TH/TR pins have stable values.
2020-11-02 18:53:57 -05:00
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rc2014 Complete overhaul of recipes 2020-10-30 20:39:39 -04:00
sms sms: simplify and solidify ports-related drivers 2020-11-02 18:53:57 -05:00
ti84 Complete overhaul of recipes 2020-10-30 20:39:39 -04:00
trs80 Complete overhaul of recipes 2020-10-30 20:39:39 -04:00
z80mbc2 Complete overhaul of recipes 2020-10-30 20:39:39 -04:00