dsa lib bugfixes

2025-06-26 20:53:51 +01:00
parent 7c63340888
commit ae92510fb8
5 changed files with 88 additions and 20 deletions
@@ -65,7 +65,19 @@ print_word:
    ldw bpr, rg0, 8
    ldw current, rg1

-    stw rg0, rg1
+    addi rg1, 3
+
+    stb rg0, rg1
+    subi rg1, 1
+    shr rg0, 8
+    stb rg0, rg1
+    subi rg1, 1
+    shr rg0, 8
+    stb rg0, rg1
+    subi rg1, 1
+    shr rg0, 8
+    stb rg0, rg1
+
    addi rg1, 4
    jmp _end

@@ -175,18 +187,24 @@ print_newline:
    push bpr
    mov spr, bpr

+    // load variables into registers
    ldw display, rg0
    ldw current, rg1
+
+    // get the offset from the display base
    sub rg1, rg0, rg0

    lwi 80, rg2
+    pusha 3
    push rg0
    push rg2
    call maths::divmod
-    pop rg2
-    addi rg2, 80
-    ldw display, rg1
-    add rg1, rg2, rg1
+    pop zero  // result
+    pop rg3 // remainder
+    popa 3
+
+    sub rg1, rg3, rg2
+    addi rg2, 80, rg1

    // _end saves the display state
    jmp _end