hlide fremen
1.3K posts


@FremenHlide This is a board designed to expand the memory of the X68000's sprite controller.
It allows you to increase the number of PCGs that can be defined,but there is currently no compatible software available.
English

@engineerswork1 Hi, Philips ! I worked on a similar project using RP2350B but I kinda abandoned or stalled it because I'm not prolific enough with electronics.
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@NAITOTokihiro ZX0 is enough for me even with the shortest and less faster uncompressor code in bytes.
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Z80の圧縮展開は展開速度が必要ならLZe、遅くてもとにかく最高圧縮を求めるならexmizer 3と私は決め打ちしています。こちらで解説してますのでよろしければ!#PR
codeknowledge.livedoor.blog/archives/12870…
日本語

@oec_Nibbleslab @zan2zanjp Currious about how you implement MZ-700 on FPGA (that's the OneChipBook 12, isn't that?)
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@S_Okue Is there a github link to this version of EmuZ80 running Z280?
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@HighWiz @k2PSyIqxDKciBXA Effectivement, la pile qui roule donne l'impression de grandir à mesure qu'elle approche l'autre pile. Il n'y a pas que les IA pour halluciner.
Français

@FremenHlide @kanegonMZ I had seen that idea somewhere a long time ago, but had completely forgotten about it. Thanks!
This idea makes it so easy to switch data.
English

今構想中なのは1枚基板にしてMZ-700の電源上部に収められるサイズです。CPLDのセルがまだ余っているのでSD基板側のロジックICとGALは入りそう。8255はピンが足りなくって断念。
PAL版ってCGROM容量が倍のやつでしたっけ?(記憶違いかな?)。一応考慮してみま~す(責任は持てない😅)
shige-ruuu@shige_ruuu
@kazx68k いっそのことMZ-700_SDとPCG700を一つにしちゃえ!ついでにPAL版のCG-ROMを挿せるソケットも増設しちゃえ!←無責任な俺(笑) いや、基板1枚だとデカく(広く)なるから二枚重ねの合作状態が良いのか。
日本語

@FremenHlide @kanegonMZ ついこの前までPAL版と2個ROMを並べることを考えていた。でも今日、帰宅ラン中にふと気づいた。容量が倍のROMを利用したら上位BITで切り替えが簡単にできるじゃないかと。ブランクROMにNTSCとPALのデータを両方書き込まないといけないので、基板の配布はちょっと難しくなるかもしれないが。
日本語

@cowcoweverybody @kanegonMZ Just one bigger ROM and to use A12 bit connected to a toggle switch. I used a touch sensor in toggle mode so I could toggle between Western and Japanese characters in real-time.
English

@kanegonMZ 情報ありがとうございます。
あー私の記憶は紹介いただいたのと似たような海外の情報と混同していたみたいですね。
日本版とPAL版の切り替えですか。つまりROMを2個並べる?
技術的にはアドレスデータバス共有でOE端子切替えで行けそうかな?問題は物理的なスペース確保のほうのような気がする。
日本語

@kanegonMZ @cowcoweverybody This ROM is 32KB if I'm not wrong so I mirrored 2048 characters. 1024 is 4 set x 256 characters. PAL and NTSC both define defines 512 characters and extra 512. I added extra 512 to have pseudo 4-level monochrome 80x50 graphics. Here is the third set:

English

@cowcoweverybody PAL版も日本版と同じ容量です。
日本版とROMの切り替えができると便利?という話かな、と。
余談ですが、アトリビュートの未使用1bitを利用して同時に1024個(いや同時は1000個か(^^;)出るように改造していらっしゃる方もいます。
x.com/FremenHlide/st…
hlide fremen@FremenHlide
@bugfire01 @stmlad @akd1500 Can you add 1024? Because on my MZ-700, I can output 1024 different characters. I use VRAM bit D3 along with bit D7 to select a 1024-character font instead of the usual 512-character font. Of course, I replace my CGROM with a bigger ROM.
日本語

@crtmaster Hi, do you think you can add you PR ? I'm also curious how you handle the fact MOTOR pin is 12V unlike MZ-700 5V.
English

@retrotink2 @NoGoodCitizen While I may not be sure, I wonder whether the author wanted a converter from Japanese video video connector (X68000, FM-Towns, etc.) which is a DB15 to VGA/HD15 where there are V and H syncs.
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@NoGoodCitizen The dongles (at least so far) only output RGBS. The V line is not used
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New design is the right size 👌
Modular design to convert HD15 to whatever you need on the other side.


Mike Chi@retrotink2
Will test this in a bit…
English

@NoGoodCitizen @retrotink2 DB15 is wider and has 15 pins in two rows of 7 and 8, while VGA, HD15 or DE15 (names are interchangeable) is a smaller connector that has 3 rows of 5. However, some devices and manuals will inaccurately label VGA connectors as DB15's. As you do.
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@retrotink2 what if i want rgbhv -> rgbs db15 to db15 tho
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@FPGA_MZ R800 is a very poor subset of Z800/Z280. The ones you added don't seem to be the ones from Z800. Are they fancy ones?
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drive.google.com/drive/folders/…
ファイル倉庫です。ch30_omake.sysの新しいのとかを入れております。
Xellent30実機での動作は確認済みですが、ストレージとかいろいろぶっ壊れても構わないよの人柱モードでの運用をどうか宜しくお願い致します。無保証です。
日本語

@twn_2020 Yep, sorry. I was on Gimons threads when I saw the first post mentioning PhantomX. I happen to discover it was mainly an issue with my SD not be compatible with PhantomX. I didn't have the right HDMI cable so I was clueless.
English

@FremenHlide Hello. I think it's not for me, it's for the person who bought it. All I know is that if you disconnect the RPI4B from the PhantomX and connect it to HDMI, you'll see if it's working properly.
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