Rename bootloader to bios, add actual bootloader

2023-07-31 19:58:32 -07:00
parent 5128fe64b6
commit 18b8ac7ccf
29 changed files with 168 additions and 138 deletions
--- a/sw/bios/devices/board_io.s
+++ b/sw/bios/devices/board_io.s
@@ -0,0 +1,24 @@
+.include "io.inc65"
+
+.importzp sp, sreg
+
+.export _sw_read
+.export _led_set
+
+.autoimport	on
+
+.code
+
+; @out A: The Value of the switches
+; Reads the current values of the switches.
+_sw_read:
+        lda SW
+        ldx #$0
+        rts
+
+; @in A: val
+; @out A: 0 for success, 1 for failure
+; Sets the LEDs
+_led_set:
+        sta LED
+        rts