Add dumb multiplier code test

2023-12-02 20:31:59 -08:00
parent 2f8290bfb0
commit 184c58b962
5 changed files with 179 additions and 0 deletions
--- a/sw/test_code/multiplier_test/main.s
+++ b/sw/test_code/multiplier_test/main.s
@@ -0,0 +1,73 @@
+.MACPACK generic
+
+.export _init, _nmi_int, _irq_int
+
+MULTIPLIER_BASE = $eff0
+
+MULTIPLIER_AL = MULTIPLIER_BASE + 0
+MULTIPLIER_AH = MULTIPLIER_BASE + 1
+MULTIPLIER_BL = MULTIPLIER_BASE + 2
+MULTIPLIER_BH = MULTIPLIER_BASE + 3
+
+MULTIPLIER_OLL = MULTIPLIER_BASE + 4
+MULTIPLIER_OLH = MULTIPLIER_BASE + 5
+MULTIPLIER_OHL = MULTIPLIER_BASE + 6
+MULTIPLIER_OHH = MULTIPLIER_BASE + 7
+
+GOLDEN_OUTPUT_0 = $03
+GOLDEN_OUTPUT_1 = $0a
+GOLDEN_OUTPUT_2 = $08
+GOLDEN_OUTPUT_3 = $00
+
+.zeropage
+finish: .res 1
+
+.data
+
+output: .res 4
+
+.code
+
+_nmi_int:
+_irq_int:
+
+_init:
+    ldx #$ff
+    txs
+
+    lda #$01
+    sta MULTIPLIER_AL
+    lda #$02
+    sta MULTIPLIER_AH
+
+    lda #$03
+    sta MULTIPLIER_BL
+    lda #$04
+    sta MULTIPLIER_BH
+
+    ldx #$00
+L1: lda MULTIPLIER_OLL,x
+    sta output,x
+    inx
+    cpx #$4
+    bne L1
+
+    lda output
+    cmp #GOLDEN_OUTPUT_0
+    bne fail
+    lda output+1
+    cmp #GOLDEN_OUTPUT_1
+    bne fail
+    lda output+2
+    cmp #GOLDEN_OUTPUT_2
+    bne fail
+    lda output+3
+    cmp #GOLDEN_OUTPUT_3
+    bne fail
+
+    lda #$6d
+    sta finish    
+
+fail:
+    lda #$bd
+    sta finish