Fix signed issue with immediate jump ops

1 files changed, 6 insertions, 1 deletions

diff --git a/src/uxn-core.s b/src/uxn-core.s
index ba05cc9..f110b61 100644
--- a/src/uxn-core.s
+++ b/src/uxn-core.s
@@ -854,16 +854,19 @@ jci:
     ldrb    r5, [r0], #1
     ldrb    r3, [r0], #1
     orr     r3, r3, r5, lsl #8
+    lsl     r3, r3, #16
+    asr     r3, r3, #16
     wpop8   r4
     cmp     r4, #0
     addne   r0, r3
-    addeq   r0, #2
     b       uxn_decode
 
 jmi:
     ldrb    r5, [r0], #1
     ldrb    r3, [r0], #1
     orr     r3, r3, r5, lsl #8
+    lsl     r3, r3, #16
+    asr     r3, r3, #16
     add     r0, r3
     b       uxn_decode
 
@@ -871,6 +874,8 @@ jsi:
     ldrb    r5, [r0], #1
     ldrb    r3, [r0], #1
     orr     r3, r3, r5, lsl #8
+    lsl     r3, r3, #16
+    asr     r3, r3, #16
     mov     r4, r0
     rpush16 r4
     add     r0, r3