diff options
Diffstat (limited to 'user/progABC.c')
-rw-r--r-- | user/progABC.c | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/user/progABC.c b/user/progABC.c deleted file mode 100644 index 0a4b299..0000000 --- a/user/progABC.c +++ /dev/null @@ -1,71 +0,0 @@ -#include <common.h> - -/** -** User function main #1: exit, write -** -** Prints its ID, then loops N times delaying and printing, then exits. -** Verifies the return byte count from each call to write(). -** -** Invoked as: main1 x n -** where x is the ID character -** n is the iteration count -*/ - -USERMAIN(main) -{ - int count = 30; // default iteration count - char ch = '1'; // default character to print - char buf[128]; // local char buffer - - // process the command-line arguments - switch (argc) { - case 3: - count = str2int(argv[2], 10); - // FALL THROUGH - case 2: - ch = argv[1][0]; - break; - default: - sprint(buf, "%s: argc %d, args: ", argv[0], argc); - cwrites(buf); - for (int i = 0; i <= argc; ++i) { - sprint(buf, " %s", argv[argc] ? argv[argc] : "(null)"); - cwrites(buf); - } - cwrites("\n"); - } - - // announce our presence - int n = swritech(ch); - if (n != 1) { - sprint(buf, "== %c, write #1 returned %d\n", ch, n); - cwrites(buf); - } - - // iterate and print the required number of other characters - for (int i = 0; i < count; ++i) { - DELAY(STD); - n = swritech(ch); - if (n != 1) { - sprint(buf, "== %c, write #2 returned %d\n", ch, n); - cwrites(buf); - } - } - - // all done! - exit(0); - - // should never reach this code; if we do, something is - // wrong with exit(), so we'll report it - - char msg[] = "*1*"; - msg[1] = ch; - n = write(CHAN_SIO, msg, 3); /* shouldn't happen! */ - if (n != 3) { - sprint(buf, "User %c, write #3 returned %d\n", ch, n); - cwrites(buf); - } - - // this should really get us out of here - return (42); -} |