Files
Sprinter-SDCC/examples/rt_test/rt_test.c
T
snark13 c71e249a4e Add full compiler toolchain, libc, examples and reference docs
First substantive commit: the entire Sprinter C compiler tree on top of
the bare README+gitignore initial commit.

What's in here:
  bin/sprinter-cc        — driver script invoking SDCC + linker + mkexe
  libc/                  — Sprinter-specific libc layer over ESTEX/BIOS
                           (conio, gfx, io, mem, stdio + headers)
  runtime/               — crt0 variants (default/small/banked/minimal)
                           + heap + bank trampolines
  toolchain/             — mkexe (SprintEXE packer, C + tests)
  examples/              — 30 demo programs (gfx, file I/O, env, time, …)
  lib/Makefile           — builds the libc archive (sprinter.lib)
  docs/                  — converted Sprinter manuals + asm reference samples
  third_party/           — solid-c reference compiler dump + sdcc setup script
  release_docs/          — packaging / release notes

gitignore overhaul:
  • Drop dangerous blanket patterns: *.asm (would hide docs/samples/*.asm)
    and *.exe (case-insensitive match was hiding third_party/solid-c/*.EXE
    on macOS APFS).  Replaced with examples/*/*.{asm,exe,…} and lib/*.lib.
  • Restore tracking of toolchain/mkexe/tests/{one,big}.bin — those are
    INPUT fixtures, not build outputs.
  • Collapse the duplicated SDCC/C/Sdcc sections into one section per
    concern (build outputs / vendored / OS-junk).
  • Add .sprinter-cc-*/, build/ (catches lib/build/ too), .claude/.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-03 16:13:21 +03:00

64 lines
1.6 KiB
C

#include <stdio.h>
#include <unistd.h>
#include <setjmp.h>
#include <sprinter_exit.h>
static void bye1(void) { puts("[atexit] bye1 (registered first, runs last)"); }
static void bye2(void) { puts("[atexit] bye2 (registered second)"); }
static void bye3(void) { puts("[atexit] bye3 (registered third, runs first)"); }
static jmp_buf env;
static int attempt;
static void might_fail(int n)
{
printf(" might_fail(%d) running...\n", n);
if (n == 2) {
puts(" -> longjmp(env, 42)");
longjmp(env, 42);
/* not reached */
}
printf(" might_fail(%d) returned normally\n", n);
}
int main(void)
{
puts("Sprinter runtime features test:");
puts("");
/* --- atexit registration --- */
atexit(bye1);
atexit(bye2);
atexit(bye3);
/* --- setjmp / longjmp --- */
puts("setjmp/longjmp:");
int r = setjmp(env);
if (r == 0) {
attempt = 1;
puts(" first arrival from setjmp (r=0)");
might_fail(attempt);
attempt = 2;
might_fail(attempt);
puts(" -- this line is NOT reached");
} else {
printf(" resumed via longjmp, setjmp returned %d (attempt=%d)\n",
r, attempt);
}
/* --- sleep --- */
puts("");
puts("sleep(5): pausing 5 seconds...");
sleep(5);
puts(" done.");
puts("");
puts("Press any key, atexit chain will run after.");
(void)getchar();
/* Use exit() to drive the atexit chain (vs returning from main, which
* doesn't necessarily go through exit() under SDCC). */
exit(0);
return 0;
}