| adapt ECB CVDU to ROMWBW RC2014 [message #8252] |
Wed, 27 January 2021 12:03  |
quarterturn
Messages: 86
Registered: April 2018
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I've purchased a MOS8658 video chip in the hopes of getting it to provide a console for my RC2014 RCZ180_nat ROMWBW system. The CVDU is of course for ECB, not RC2014, so some modifications will be necessary to the make it work.
I've got the following at the end of Config/RCZ180_nat.asm:
CRTACT .EQU TRUE ; ACTIVATE CRT (VDU,CVDU,PROPIO,ETC) AT STARTUP
CVDUENABLE .EQU TRUE ; CVDU: ENABLE CVDU VIDEO/KBD DRIVER (CVDU.ASM)
tasm eventually emits errors like:
kbd.asm line 0182: Label not found: (KBDTRACE)
kbd.asm line 0208: Label not found: (KBDTRACE)
kbd.asm line 0234: Label not found: (KBDTRACE)
kbd.asm line 0475: Label not found: (KBD_MAPEXT)
presumably as it's wanting to pull in PS/2 keyboard libraries not in cfg_rcz180.asm. I'd like to focus first on video output, so how would I go about commenting out whatever's getting pulled in via cvdu.asm? Comment out everything 'KBD' related?
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| Re: adapt ECB CVDU to ROMWBW RC2014 [message #8315 is a reply to message #8254] |
Thu, 11 February 2021 12:56  |
quarterturn
Messages: 86
Registered: April 2018
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Member |
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I've got the digital part of the card built and burned a new ROM with the suggested changes. I'll either have to mod it to raise CE at address 0xE4 or find where that is in ROMWBW and make it one of the addresses supported by the proto card.
EDIT:
The base address is defined at the top of cvdu.asm. My card will decode 0x80 to 0x8F, I guess, to avoid hardware mods to the proto board.
[Updated on: Thu, 11 February 2021 13:21] Report message to a moderator |
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