boxswap

resources/test/instructions.asm

@@ -27,16 +27,16 @@
     ASL $abcd  ; ASL Absolute
     ASL $abcd,X; ASL AbsoluteX
 
-    BCC $ab    ; BCC Immediate
-    BCS $ab    ; BCS Immediate
-    BEQ $ab    ; BEQ Immediate
+    BCC $71    ; BCC Immediate
+    BCS $71    ; BCS Immediate
+    BEQ $71    ; BEQ Immediate
 
     BIT $ab    ; BIT ZeroPage
     BIT $abcd  ; BIT Absolute
 
-    BMI $ab    ; BMI Immediate
-    BNE $ab    ; BNI Immediate
-    BPL $ab    ; BPL Immediate
+    BMI $7b    ; BMI Immediate
+    BNE $7b    ; BNI Immediate
+    BPL $7b    ; BPL Immediate
 
     BRK        ; BRK
 
@@ -151,4 +151,39 @@
     ROR $abcd,X; ROR AbsoluteX
 
     RTI        ; Interrupt Return
-    RTS        ; Subroutine Return
+    RTS        ; Subroutine Return
+
+    SBC #$ab   ; SBC Immediate
+    SBC $ab    ; SBC ZeroPage
+    SBC $ab,X  ; SBC ZeroPageX
+    SBC $abcd  ; SBC Absolute
+    SBC $abcd,X; SBC AbsoluteX
+    SBC ($ab,X); SBC IndirectX
+    SBC ($ab),Y; SBC IndirectY
+
+    SEC        ; SEC
+    SED        ; SED
+    SEI        ; SEI
+
+    STA $ab    ; STA ZeroPage
+    STA $ab,X  ; STA ZeroPageX
+    STA $abcd  ; STA Absolute
+    STA $abcd,X; STA AbsoluteX
+    STA $abcd,Y; STA AbsoluteY
+    STA ($ab,X); STA IndirectX
+    STA ($ab),Y; STA IndirectY
+
+    STX $ab    ; STX ZeroPage
+    STX $ab,Y  ; STX ZeroPageY
+    STX $abcd  ; STX Absolute
+
+    STY $ab    ; STY ZeroPage
+    STY $ab,X  ; STY ZeroPageX
+    STY $abcd  ; STY Absolute
+
+    TAX        ; TAX
+    TAY        ; TAY
+    TSX        ; TSX
+    TXA        ; TXA
+    TXS        ; TXS
+    TYA        ; TYA

resources/test/labels.asm

@@ -0,0 +1,8 @@
+    * = $4000
+    .fill start - *, $00
+start:
+    LDA #$ab
+    ROR
+    LDX #$ba
+    TXA
+    JMP start