From ba2d7ae1d7b319645b10aaa31a7f664f9f80c25c Mon Sep 17 00:00:00 2001 From: user Date: Sat, 18 Jul 2026 00:38:38 +0200 Subject: refactor: c/ -> usr/, compiled program blobs out of the source tree Userland sources live in usr/ (fits the Unix theme better than 'c'). SDCC output .bin blobs land in build/usr/ with the other build artifacts instead of littering the source dir; programs.asm INCBINs them from there. Byte-identical ROM. --- usr/cat.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 usr/cat.c (limited to 'usr/cat.c') diff --git a/usr/cat.c b/usr/cat.c new file mode 100644 index 0000000..790cb88 --- /dev/null +++ b/usr/cat.c @@ -0,0 +1,17 @@ +#include "gbos.h" +/* cat [file]: print a file, or copy stdin to stdout until EOF. */ +void main(void) { + char *argv[4]; + unsigned char argc = argv_parse(argv, 4); + if (argc > 0) { + unsigned char fd = open(argv[0], O_READ); + int ch; + if (fd == EISDIR) { puts("cat: is a directory"); nl(); return; } + if (fd == NOFD) { puts("cat: no such file"); nl(); return; } + while ((ch = fgetc(fd)) >= 0) putc((char)ch); + close(fd); + } else { + char c; + for (;;) { c = readc(); if (c == EOF) break; putc(c); } + } +} -- cgit v1.3.1-sl0p