Add software interface for reading SD card data

Adds functions to wait for data to be read, and to read data form the sd card controller.
2022-04-11 14:03:42 -05:00
parent 87d1457d94
commit f4e16c0c12
4 changed files with 29 additions and 0 deletions
--- a/sw/io.inc65
+++ b/sw/io.inc65
@@ -13,5 +13,6 @@ MM_DATA		= $7fe0

 SD_ARG      = $7ff8
 SD_CMD      = $7ffc
+SD_DATA     = $7ffd

 IRQ_STATUS  = $7fff