ballz
b7219dccfc
New targets: help (default) — show usage (was the -help/--help equivalent) compile — compile main.c → build/nyuller.prg run — compile + run in oscar64 built-in emulator run-vice — compile + run in VICE x64 (foreground) run-vice-cycle — compile + run in VICE x64sc (cycle-exact) play — compile + launch VICE x64 detached play-cycle — compile + launch VICE x64sc detached kill — kill any detached VICE clean — remove build/ artifacts build/nyuller.d64 — build the .d64 disk image from the .prg Optimization: override with 'make OPT=O3' (or O0/O1/O2/Os/g). Default is -O1 (oscar64 default). The Makefile builds oscar64 automatically if missing, uses c1541 to create the .d64 with verification, and passes -drive8type 1541 to VICE (required for autostart). Removed src/build.sh and updated all docs (README, tasks.md, AGENT_CONTEXT.md, GAME.md, helloworld.c) to reference make.
23 lines
629 B
C
23 lines
629 B
C
// helloworld.c — minimal C64 program in C with Oscar64
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//
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// Builds a .prg that prints "Hello World" on the C64 text screen and exits.
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//
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// Build: make compile
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// Run: make run
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#include <stdio.h>
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int main(void)
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{
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// CHR$(147) is PETSCII "clear screen" — same as printf("\f") in C but
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// emitted as the right byte for the C64's PETSCII character set.
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putchar(147);
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// The p"" prefix tells Oscar64 to emit the string as PETSCII, not ASCII.
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// Without it the C64's character ROM would render garbage because the
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// character generator maps 'H' to PETSCII 8, not ASCII 72.
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printf(p"Hello World\n");
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return 0;
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}
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