Recent content by Snial

Thanks for the reply, by a direct cable. The iMac G4 connects to the internet via Airport. On boot up, the LC's ethernet socket's LED blinks green then goes off for about 0.5s, then stays green. I couldn't see any flickering when I tried to ping from the iMac G4 on (as I imagine) eth0, the...

Hi folks, I have an Apple Ethernet PDS card: "Ethernet LC Twisted Pair Card: ASSY 820-0532-B". The LCII (really a Performa 400) has System 7.1 + Extensions: Apple Ethernet LC (10 Base T socket); EtherTalk Prep; EtherTalk Phase 2; Network Extension all installed. I have MacTCP and Network...

Do you have an original 64K ROM or a 128K ROM? There's a Mac GUI post about boot up on a 64K ROM which describes the memory size test: basically it checks a 128K mirror address and if it's not a mirror it assumes it's 512K - it doesn't actually check all the RAM properly. I think it means you'd...

Aaaah. I only had the single speaker from the other cannibalised PB1400. That was a fun project though. I bought it fairly cheaply from a French guy on eBay (I'm a UK member) as spares / repairs. It didn't work, but that was fine as I figured there might be enough bits and pieces to improve my...

I swapped my original 1400CS display for a cannibalised 1400C display (much better). There's certainly an issue with some speaker setups. My 1400c had speaker distortion, but a 68KMLA member said it wasn't the speaker, but a motherboard fault. This implies that it could be fixable. Re hinges...

I've updated Atomac (which I pronounce "A-tommuk", rather than "Atom-Ack" or "Atto-Mac", so that it sounds more like "Atomic"). I 'fixed' the problem of missing keypresses, by hacking the Atom ROM to ignore flyback scans when scanning the keyboard. Nevertheless, because I now run frames at...

Yes, and I know how to use it :-) ! Yes. I already know a few things I can do: THINK C 5 doesn't support inline functions. The central get byte function was originally inline, but for compiling purposes I just deleted that. I would replace it with a #define macro. This would improve all the...

Fun indeed! Here's the first 'improvement', Atomac was originally written to run under CodeWarrior for PPC. Here I've converted it to run under Think C 5 for 68K. Keyboard scanning doesn't quite work at the full rate (some keys are missed) and every kind of Reset apart from the normal Reset...

A long time ago, I wrote an emulator for the Acorn Atom, a 1MHz 6502 home computer with a rather strange version of Basic and integrated macro assembler (yes). It's the grandad of the Archimedes, so you can see quite a bit of their first ARM computers in this machine. Actually, I took an X11...

NuMac Emulation Progress & The MiniMixedModeManager (MinxedMan) So, I've made a bit of progress on the NuMac Emulation. I've built a new copy of the PCE Mac Plus emulator, but more importantly, I now have a working M88K gcc compiler (3.3.6) via the GXemul emulator, which emulates the Luna88K...

I think they meant that even the PPC 601's Instruction set could execute DSP math faster than the 840's DSP chip could, but basically that meant it had a fast Multiply and Accumulate instruction; load/store multiple and load/store with address update, perhaps with different strides (but I'm not...

NuMacSE Prototype Emulator It'd be quite interesting to create a quick-and dirty NuMacSE based emulator as a first step. Gary Davidian's first M88K emulator ran a Mac SE ROM, because obviously it's easier to write a 68000 emulator than a 68020 emulator. Only when its feasibility was proved was...

Hey, we're now 1/3 of the way to a NuMac Chipset :-) !