fix sign extension, support branch delay slot

1 files changed, 5 insertions, 6 deletions

diff --git a/msim/main.c b/msim/main.c
index f8a0999..13f6383 100644
--- a/msim/main.c
+++ b/msim/main.c
@@ -2,7 +2,6 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <merror.h>
-#include <signal.h>
 
 #include "fault.h"
 #include "sim.h"
@@ -11,7 +10,7 @@ static void help(void) {
 	printf("usage: msim [options] executable\n\n");
 	printf("options:\n");
 	printf("\t-h\t\tprints this help messaage\n");
-	printf("\t-c\t\tdisable runtime memory checks (allows segfault)\n");
+	printf("\t-j\t\tdisable jump delay slot\n");
 	printf("\t-d\t\truns the debugger\n");
 }
 
@@ -21,18 +20,18 @@ int main(int argc, char **argv) {
 	struct simulator_args args = {
 		.executable = NULL,
 		.debug = false,
-		.memchk = true,
+		.jdelay = true,
 	};
 
 	int c;
 
-	while ((c = getopt(argc, argv, "hcd")) != 1) {
+	while ((c = getopt(argc, argv, "hjd")) != 1) {
 		switch (c) {
 		case 'h':
 			help();
 			return M_SUCCESS;
-		case 'c':
-			args.memchk = false;
+		case 'j':
+			args.jdelay = false;
 			break;
 		case 'd':
 			args.debug = true;