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/necho.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 usr/necho.c (limited to 'usr/necho.c') diff --git a/usr/necho.c b/usr/necho.c new file mode 100644 index 0000000..99551d4 --- /dev/null +++ b/usr/necho.c @@ -0,0 +1,13 @@ +#include "netlib.h" +/* necho: send a SLIP-framed packet over the link port and print the reply. + Talks to a host gateway (tools/gateway.py) that echoes frames back. */ + +void main(void) { + char buf[64]; + unsigned char len; + puts("net: send 'hello from gbos'"); nl(); + slip_send("hello from gbos", 15); + len = slip_recv(buf, 63); + buf[len] = 0; + puts("net: recv '"); puts(buf); puts("'"); nl(); +} -- cgit v1.3.1-sl0p