Files
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

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Examples tour

The release ships with 27 example programs in examples/. Every one of them is a self-contained demo with comments — they were used as regression tests during development.

Build any example

cd examples/hello
make

That produces hello.exe next to hello.c using examples/example.mk.

Categories

Hello world / basics

  • hello — stdio + conio Turbo-C-style colours
  • argv — argv parsing in crt0
  • conio — conio API smoke test
  • attrprob — probe Sprinter text-attribute byte layout

File I/O

  • cat — read & print TEST.TXT
  • seek — 32-bit lseek over a 100 KB file
  • ls — directory listing via ffirst/fnext
  • filetest — FILE* streams (fopen/fread/fwrite/fclose)
  • statteststat/fstat on files and directories
  • openenv — open() flags + environment variables

Memory & banking

  • malloc — heap stress test (200+ allocations)
  • mem_test — page allocator + bank_read/bank_write
  • banked — banked code in W3 (huge mode)
  • bankedbg — banked code in W1 (big mode)
  • banklocl — bank-local static data and BSS

Mouse

  • mouse — driver in text mode
  • gfx_mous — mouse with custom bitmap cursor in graphics mode

Graphics

  • gfx_demo — 320×256×256: lines, rectangles, fill via accelerator
  • gfx_d16 — 640×256×16: same primitives in 16-color mode
  • gfx_text — bitmap-font text on graphics screen

Misc

  • errno — errno / strerror / perror
  • timedir — date/time + directory listing
  • ptime — POSIX time API (time / localtime / mktime)
  • strtest<string.h> test (from SDCC's z80.lib)
  • stdlib<stdlib.h> test (qsort / rand / strtol / etc.)
  • assrtest — assert()
  • rt_test — runtime helpers (sleep, setjmp, atexit)

Example.mk

Every example uses examples/example.mk. A minimal Makefile looks like:

PROJ_ROOT := $(abspath $(CURDIR)/../..)
EXAMPLE   := my_app
include $(PROJ_ROOT)/examples/example.mk

Optional knobs (set before include):

MEMORY      := huge                       # default tiny
STACK_SIZE  := 4096                       # default ~1278
EXTRA_SRCS  := helper.c util.c            # extra .c files in same dir
EXTRA_FLAGS := --bank 1=engine.c --debug  # pass-through to sprinter-cc

Use this template for your own programs.