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Oh sure - Hippo C was allegedly the first Mac C compiler but I don’t think anyone is known to have a copy anymore. https://retrocomputing.stackexchange.com/questions/3213/what-was-the-first-c-compiler-for-the-mac#3220 Consular Mac C was also, I think, released in 1984 (I have a copy from 1986)...

Yeah we are well into sophomore year computer science stuff here but … You can’t really resize an array. But you could: Allocate a “probably big enough but not too big” array, then if you need more space, reallocate a new, somewhat bigger array, copy everything over, then dispose of the old...

Agree with YMK, but just for fun/hobby purposes, if the number of it items will be reasonably small, a linked list of structs is probably your answer. Something like this. typedef struct Foo { char name[20]; int size; struct Foo *next; } Foo; … Foo *GetNewFoo(char *name, int...

Right, the Toolbox routines were set up for Pascal-style calling conventions on the stack.

Most of the core parts of the Toolbox were actually written in 68k assembly. But you are right that the standard high-level language with which developers were expected to implement Mac applications in 1984 was indeed Pascal … but it would have been Lisa Workshop Pascal running on a Lisa...

Random belated endorsement for the excellent choice of using C. I resurrected some old Pascal game code I wrote in 1992 (https://macintoshgarden.org/games/beamwars) for an updated “30th anniversary edition” (still coming soon … eventually) and dealing with the Pascal quickly became a giant...

Popupfuncs garden link - from our own @Mu0n I think! https://macintoshgarden.org/apps/popupfuncs Popupfuncs came bundled with another extension called Technicolor which I highly highly recommend - it provides syntax coloring in THINK C 6. Not sure if this link includes Technicolor - if not I...

In general there are compiler settings in the project preferences dialog box that can ameliorate a lot of this (type checking in particular), but yes, moving to Universal Headers will certainly be a breaking change for a lot of code. Most of the changes are fairly trivial but for education...

What is that little daughtercard there? It looks like it wants to support DC-in and Ethernet?

That’s a cool project. Challenge accepted! This is just using direct pixel manipulation, not QuickDraw 3D or any of that — so in theory would run on a real Mac Plus, but is only running fast enough here because it’s on an emulator. Lots of work to make it much smoother and faster, remove...

Of course one can do anything with some combination of hardware and software … but go too far and what one has isn’t really an “SE” anymore! You can’t use all 16MB for RAM without 32-bit addressing. It just isn’t possible, because in 24-bit mode, there are only 16MB of addressable bytes in...

I’m not sure it’s really fair to describe it as idiocy … in 1984 surely nobody was thinking anyone would desire to upgrade their 512k Mac to 8MB! Perhaps it was a different story by 1986 … Anyway I don’t think it’s just a matter of connecting address lines. Making the full...

Wow this is very cool and I was not aware of it.

Those voltages sound fine. I have one of these too, I don’t think this is a PSU issue. Checking for continuity between the accelerator pins and the 68000 and checking the accelerator traces is probably the next stop.

THINK C 6 runs under all flavors of System 7, yes.

Beautiful work guys!

What a great post @Mu0n . Everything you wrote there sounds brilliant! I would LOVE to get access to an archive of all the old MacTutor articles. I have been meaning to track down one of those CDs myself one day. I would quibble with one thing - Mini vMac under Mac II emulation can make the...

I keep meaning to try Retro68 but the edit-compile-run-test loop feels awfully clunky. Every time I want to try my code I have to go through some LaunchAPPL gymnastics? THINK C in an emulator is blazing fast, reliable, and has a built-in debugger. It seems to me like the way to go.

Beautiful! More information please. Where on Reddit? What eBay seller?

@JDW try this https://www.macintoshrepository.org/9613-think-reference-2-0 THINK C came with a very stripped down version of THINK Reference that only included documentation on the C standard library. The Toolbox documentation was a separate, paid product, linked above.