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.

1 files changed, 0 insertions, 17 deletions

diff --git a/c/cat.c b/c/cat.c
deleted file mode 100644
index 790cb88..0000000
--- a/c/cat.c
+++ /dev/null
@@ -1,17 +0,0 @@
-#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); }
-    }
-}