1 files changed, 28 insertions, 0 deletions
diff --git a/progs/instr2opcode.c b/progs/instr2opcode.c
new file mode 100644
index 0000000..bbf9a91
--- /dev/null
+++ b/progs/instr2opcode.c
@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <string.h>
+
+#include "alpha.h"
+
+int main(int argc, char * argv[]) {
+	int i;
+	int found = 0;
+
+	if (argc < 2) {
+		fputs("Must enter an instruction to search for.\n", stderr);
+		return -1;
+	}
+
+	for (i = 0; i < alpha_num_opcodes; i++) {
+		if (strcasecmp(alpha_opcodes[i].name, argv[1]) == 0) {
+			printf("%3d: %18s - opcode %#04X\n", i, alpha_opcodes[i].name, AXP_OP(alpha_opcodes[i].opcode));
+			found = 1;
+		}
+	}
+
+	if (!found) {
+		puts("Sorry, instruction not found.");
+		return -1;
+	}
+
+	return 0;
+}