Add quick uart irq test

2023-11-28 17:45:20 -08:00
parent db4848b6fe
commit 3524892f80
6 changed files with 163 additions and 1 deletions
--- a/sw/test_code/uart_irq_test/main.s
+++ b/sw/test_code/uart_irq_test/main.s
@@ -0,0 +1,35 @@
+.export _init, nmi_int, irq_int
+
+.autoimport
+
+.import _init_interrupt_controller
+
+.zeropage
+
+finish: .res 1
+
+.code
+
+nmi_int:
+irq_int:
+    lda #$6d
+    sta $00
+
+_init:
+    ldx #$ff
+    txs
+
+    LDA     #<(__STACKSTART__ + __STACKSIZE__)
+    STA     sp
+    LDA     #>(__STACKSTART__ + __STACKSIZE__)
+    STA     sp+1
+
+    ; enable interrupt 0
+    lda #$00
+    jsr pusha
+    lda #$1
+    jsr _enable_irq
+
+    cli
+
+@end:   bra @end