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collapseos/arch/z80/ti84/blk/606

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ti84: tidy up driver code Pushed all words directly interfacing with ports and memory offsets to low level layers. This saves us the need for keeping those variables in runtime memory.
2020-05-09 22:50:55 +10:00
( two pixel buffers that are 8 pixels wide (1b) by FNTH
ti84: WIP
2020-05-08 20:50:34 +10:00
pixels high. This is where we compose our resulting pixels
blocks when spitting a glyph. )
ti84: use Grid subsystem Also, rename CLRLN to NEWLN and make it clear that it's only called on entering a new line. This way, we can set Z offset in there for the TI-84+ LCD driver.
2020-11-11 12:30:37 +11:00
: LCD_BUF 0 _mem+ ;
ti84: tidy up driver code Pushed all words directly interfacing with ports and memory offsets to low level layers. This saves us the need for keeping those variables in runtime memory.
2020-05-09 22:50:55 +10:00
: _cmd 0x10 ( CMD ) PC! _wait ;
: _data! 0x11 ( DATA ) PC! _wait ;
: _data@ 0x11 ( DATA ) PC@ _wait ;
: LCDOFF 0x02 ( CMD_DISABLE ) _cmd ;
: LCDON 0x03 ( CMD_ENABLE ) _cmd ;
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