1 files changed, 14 insertions, 0 deletions
diff --git a/usr/ps.c b/usr/ps.c
new file mode 100644
index 0000000..7bfc0de
--- /dev/null
+++ b/usr/ps.c
@@ -0,0 +1,14 @@
+#include "gbos.h"
+/* ps: list live processes (pid, state, command). */
+void main(void) {
+    unsigned char i, buf[3];
+    char name[9];
+    for (i = 0; i < 8; i++) {
+        if (psget(i, buf)) {              /* buf = {pid, state, prog} */
+            putu(buf[0]); putc(' ');
+            putc("-RrBZ"[buf[1]]); putc(' ');
+            progname(buf[2], name);
+            puts(name); nl();
+        }
+    }
+}