From 122c5a91a71a0dd5e3494b84434db836164324f6 Mon Sep 17 00:00:00 2001
From: Erick <ahmederick00@gmail.com>
Date: Fri, 4 Feb 2022 01:58:28 +0100
Subject: [PATCH] add jump register

---
 tyvm.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tyvm.c b/tyvm.c
index 784969e..dfdd0f9 100644
--- a/tyvm.c
+++ b/tyvm.c
@@ -64,7 +64,7 @@ enum opcodes {      // [name, value]
     OP_NOT,         // bitwise not,
     OP_LDI,         // indirect load, 1010
     OP_STI,         // indirect store,
-    OP_JMP,         // jump,
+    OP_JMP,         // jump, 1100
     OP_RES,         // reserved opcode,
     OP_LEA,         // load effective address,
     OP_TRAP,        // execute trap,
@@ -195,7 +195,12 @@ int main(int argc, const char* argv[]) {
                 //{STI};
                 break;
             case OP_JMP:
-                //{JMP};
+                uint16_t BaseR = (instr >> 6) & 0x7;
+
+                reg[RG_PC] = reg[BaseR];
+
+                update_flags(dr);
+
                 break;
             case OP_LEA:
                 //{LEA};