fix minor bug which also frees up r4

2025-07-15 12:53:02 -04:00
parent 4920c3b92b
commit 42ad32b0cc
1 changed files with 5 additions and 4 deletions
--- a/src/misc/50count.asm
+++ b/src/misc/50count.asm
@@ -9,22 +9,23 @@ prog:
    imm6 0x1
    load r0, r2         ; value to increment by

-    ; r1+r2=(r3 & r4)
+    ; r1+r2=r3
    add                 ; add r1 + value
-    load r3, r4         ; over-write upper MSB to store a copy
    load r3, r2         ; store result in r2

    imm6 0x32
    load r0, r1         
    sub                 ; 50 - r2 = remainder

+    ; r3 (C) holds the difference between 50 and our result
+
    imm6 prog.result
    beqz                ; if r3 == 0 branch to [r0]

-    load r4, r1         
+    load r2, r1         
    imm6 prog.loop
    ba                  ; else, copy result to r1 and loop

 .result:
-    out r4
+    out r2
    halt