mirror of
https://github.com/hsoft/collapseos.git
synced 2024-12-27 19:48:08 +11:00
13 lines
349 B
Plaintext
13 lines
349 B
Plaintext
|
( Z80 driver for TMS9918. Implements grid protocol. Requires
|
||
|
|
TMS_CTLPORT, TMS_DATAPORT and ~FNT from the Font compiler at
|
||
|
|
B520. Load range B470-472 )
|
||
|
|
CODE _ctl ( a -- sends LSB then MSB )
|
||
|
|
HL POP, chkPS,
|
||
|
|
A L LDrr, TMS_CTLPORT OUTiA,
|
||
|
|
A H LDrr, TMS_CTLPORT OUTiA,
|
||
|
|
;CODE
|
||
|
|
CODE _data
|
||
|
|
HL POP, chkPS,
|
||
|
|
A L LDrr, TMS_DATAPORT OUTiA,
|
||
|
|
;CODE
|