integrate sd controller and super simple tb

2024-03-10 11:31:07 -07:00
parent 81382925f8
commit da41e60ee7
8 changed files with 228 additions and 23 deletions
--- a/sw/test_code/sd_controller_test/main.s
+++ b/sw/test_code/sd_controller_test/main.s
@@ -0,0 +1,21 @@
+.export _init, _nmi_int, _irq_int
+
+.segment  "VECTORS"
+
+.addr      _nmi_int    ; NMI vector
+.addr      _init       ; Reset vector
+.addr      _irq_int    ; IRQ/BRK vector
+
+SD_CONTROLLER = $e000
+CLK_DIV = $20
+
+.code
+
+_nmi_int:
+_irq_int:
+
+_init:
+        lda #$08
+        sta SD_CONTROLLER
+
+@end:   bra @end