1 files changed, 24 insertions, 0 deletions

diff --git a/macros.inc b/macros.inc
new file mode 100644
index 0000000..78bbfad
--- /dev/null
+++ b/macros.inc
@@ -0,0 +1,24 @@
+DMA:	macro	mode,source,dest,len

+

+	pha

+

+	lda	#@mode

+	sta	DMAP0

+	lda	#@dest

+	sta	BBAD0

+	lda	#@source & $ff

+	sta	A1T0L

+	lda	#{@source >> 8} & $ff

+	sta	A1T0H

+	lda	#{@source >> 16} & $ff

+	sta	A1B0

+	lda	#@len & $ff

+	sta	DAS0L

+	lda	#{@len >> 8} & $ff

+	sta	DAS0H

+	lda	#1

+	sta	MDMAEN

+

+	pla

+

+	endm