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, 12 insertions, 0 deletions

diff --git a/usr/args.c b/usr/args.c
new file mode 100644
index 0000000..c6f4db3
--- /dev/null
+++ b/usr/args.c
@@ -0,0 +1,12 @@
+#include "gbos.h"
+/* args: an argc/argv demo. Splits its argument string into argv[] and prints
+   argc plus each argument. Try: `args one two three` */
+void main(void) {
+    char *argv[8];
+    unsigned char argc = argv_parse(argv, 8);
+    unsigned char i;
+    puts("argc="); putu(argc); nl();
+    for (i = 0; i < argc; i++) {
+        puts("argv["); putu(i); puts("]="); puts(argv[i]); nl();
+    }
+}