RomWBW

Commit Graph

Author	SHA1	Message	Date
b1ackmai1er	25a9ce046f	Option to move Fonts out of HBIOS area to ROM Bank 3 The FONTS_INLINE equate controls whether the fonts are included in the HBIOS area as per existing behaviour or whether they are placed in the currently unused ROM bank 3. In the case where we use bank 3 for font storage, the HBIOS is built with the font data located at 0x8000 onwards. The build process splits this off for relocation to the correct image position. Unlzsa, the TMS and VGA driver have been updated to access the font data from either location, whether compressed or not. Moving the font data to bank 3 results in significant savings in HBIOS space. If you are happy with this approach, I will continue developing and roll changes into other display drivers and do some hardware testing. Further on, as mentioned, I would like to look see if i can get the decompressor to decompress one byte at a time and move the CCP cache to bank 3 as well. Regards Phil	1 year ago
Wayne Warthen	f9ed5651e6	KBD Interrupt Processing Cleanup - I finally realized there was a much simpler way to setup the instance data pointer (IY) for the interrupt handler. This implements the change and reduces the complexity of the code. - Related to PR #460	1 year ago
Wayne Warthen	7606abb8f3	Follow-up on KBD Interrupt Support Related to PR #460	1 year ago
b1ackmai1er	5d92341189	PS2 Interrupt driven keyboard for Duo For keyboard interface on I/O Multi board. Default is disabled. Requires interrupt #2 jumper set on I/O Multiboard, which is pin 11-12 in P5. Has limitations around port settings. Do not have a video card on my Duo so have been forcing a video driver to load and testing with PIP CON:=UR2: . Let me know what you think.	1 year ago
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. -	2 years ago
Wayne Warthen	2d8c37307d	Improve Video Hardware Reset - This change avoids clearing the screen every time an OS reset occurs. A non-destructive VDC reset is now performed that leaves the screen contents and cursor position unchanged. - If an application overwrites the video RAM, then the screen may contain garbage upon return to OS. However, the console will still be functional and the user can just press enter a few times to clear the screen.	2 years ago
Wayne Warthen	074f2cfdb2	Fix for ROMless Restart Registration of terminal emulation was failing under ROMless operation after a (R)estart was performed at the Boot Loader. See <https://groups.google.com/g/retro-comp/c/bILDMVI97vo/m/Oj8sXdr7DAAJ>.	2 years ago
Wayne Warthen	72cdbdd4ad	Documentation Updates Inspired by Martin R - Implemented a crude mechanism to output config settings during a build which can be imported into the User Guide appendix.	2 years ago
Wayne Warthen	9358299f14	Z280 Workaround for VGARC Z280 is having an issue with OTDR instruction when loading the font for VGARC. For now, the use of OTDR has been eliminated.	3 years ago
Wayne Warthen	d445c4a015	Disable LZSA Compression for Z280 - The LZSA2 decompressor code is failing mysteriously on Z280 CPUs. I have simply disabled it in the Z280 primary configuration file.	3 years ago
Wayne Warthen	e32002545b	VGARC Improvements, Doc Fix - Added ability to enable VGARC and front panel in default config without I/O conflicts (does not support having both types of hardware present at the same time). - Fixed documentation error in issue #345 reported by @MorfeoMatrixx.	3 years ago
Wayne Warthen	7ac88efac1	Support for VGARC Initial support for Bill Shen's VGARC video/keyboard module for RCBus.	3 years ago

12 Commits (9e757f859fb53e08994e2b562291bd52d672a074)