Move devices into devices folder

2022-04-16 21:47:54 -05:00
parent c5f1b64cba
commit 238a4b6f98
17 changed files with 10 additions and 9 deletions
--- a/sw/devices/mapper.s
+++ b/sw/devices/mapper.s
@@ -0,0 +1,32 @@
+.include "io.inc65"
+
+.importzp sp, sreg
+
+.export _mapper_enable
+.export _mapper_read, _mapper_write
+
+.autoimport on
+
+.code
+
+
+; void mapper_enable(uint8_t en)
+_mapper_enable:
+	sta MM_CTRL
+	rts
+
+_mapper_read:
+	phx
+	tax
+	lda MM_DATA,x
+	ldx #$00
+	rts
+
+_mapper_write:
+	phx
+	tax
+	jsr popa
+	sta MM_DATA,x
+	plx
+	rts
+