9 Commits

Author	SHA1	Message	Date
Wayne Warthen	1cb5f0b3b4	NABU Code Cleanup	2024-05-23 11:00:51 -07:00
Wayne Warthen	7c41ef6fc9	Implement System Timer for NABU	2024-05-10 15:44:51 -07:00
Wayne Warthen	e0414bca05	NABU Stuff ... - Implement Interrupt Mode 2 (Mode 1 is still default) - Implement interrupt driven keyboard support - Improve UART keyboard driver to support interrupt driven flow control	2024-05-10 11:13:34 -07:00
Wayne Warthen	2a6a3f36c2	Update nabu.asm ... Ongoing work on NABU interrupt processing. Co-Authored-By: Les Bird <lesbird65@gmail.com>	2024-05-06 18:57:14 -07:00
Wayne Warthen	4946b313e1	Update nabu.asm ... - Fix R16 register addressing	2024-05-06 13:10:44 -07:00
Wayne Warthen	dd93a178fa	Update nabu.asm ... - Initialize PSG I/O ports for NABU	2024-05-06 11:15:45 -07:00
Wayne Warthen	3f63c92fd5	HBIOS Cleaning ... - Rearranged HBIOS code to improve colocation of related code. - Implemented macros to improve control over assembly diagnostic output. - Improved handling of diagnostic LEDs. - Improved application boot bank management. - Implemented application boot for Z280 systems. - Moved Z280_BNKSEL into proxy. -	2024-04-30 14:18:59 -07:00
Wayne Warthen	67d23dc540	Tweaks to NABU Support ... - Include NABU in pre-built ROMs - AY sound driver works (but poorly)	2024-04-16 17:03:30 -07:00
Les Bird	438df9a80b	NABU Personal Computer integration - nabu.asm and nabukb.asm contain code to support the NABU hardware.	2024-04-15 20:21:09 -06:00