Quote from: Longshot on Yesterday at 13:17@SerErris :
I think I have accurately specified the number of the T cycle in an M cycle but I did not go into detail about the M cycles of the Z80A (I use the same references)
I also explain that the Opcode Fetch is done during M1 a little before when I describe the opcode fetch.
The cycle indicated TW in the IO REQ is the 3rd of cycle T of cycle M, even if T3 in the nomenclature is the 4th.
Even if the objective of the document is not to further describe the internal workings of the Z80A, I thank you for the precision and I have clarified the cycle number M
QuoteA cycle M consists of several T cycles, one of which has the particularity of taking into account the signal sent to the Wait pin by an external component. This wait cycle is commonly named Tw. At this Tw cycle it honors an active High signal and runs Wait cycles until this line getting down again.
QuoteA cycle M consists of several T cycles, one of which has the particularity of taking into account the signal sent to the /WAIT pin by an external component. This wait cycle is commonly named Tw. At this Tw cycle it honors an active low signal on /WAIT and runs wait cycles until this line getting up again.
Quote from: Longshot on Yesterday at 13:17What is this project you are currently working on regarding Vortex?I do need to reverse envineer the ROM that is actually scrambled utilizing the M1 line. So depending on the M1 cycle it does scramble (actually descramble) or does not descramble the ROM. So if you read the ROM just normally (dump it, or read it with CPC) you will get all databytes scrambled and it is unusable.
Quote from: HAL6128 on Yesterday at 20:28Hm, maybe I was a little too fast with my assumption. I thought that the MegaFlash could also replace the Lower ROM, but it seems that it doesn't. So, the Firmware ROM ( X-MEM - CPCWiki ) won't be usable (which initialize ROMs 0-31).I prefer cubemdos because most easy to use... I'm using a cpc6128 and a megaflash that could be able to replace the rom 0 (but not the dos rom 7) . But seems that cubemdos and 32rombooster rom can't live togheter ...
How about using UniDOS as an IDE interface driver? Which interface do you use?
Quote from: dodogildo on Yesterday at 14:48Yeah, Bollaware is great!Quote from: GUNHED on Yesterday at 13:54And I remember the games from Bollaware:Wow both are great!!
- Back Land
- FresFighter
Quote from: HAL6128 on 14:34, 01 May 24Don't know about the Problem, but instead of using the old Booster Rom you could try the more modern Firmware Rom 3.15 / 3.16?Can you tell me more please?
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