X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=ROM2%2Fhelpers.c;fp=ROM2%2Fhelpers.c;h=283ca30a37531b355a050157cfa5b261c9fe87f8;hb=4f35424978e202fff48c2331eee9fd01e3da244f;hp=0000000000000000000000000000000000000000;hpb=3ab9c6bfa526db3e2d5c9ac5bbbef0517b977364;p=uccvend-snackrom.git

diff --git a/ROM2/helpers.c b/ROM2/helpers.c
new file mode 100644
index 0000000..283ca30
--- /dev/null
+++ b/ROM2/helpers.c
@@ -0,0 +1,45 @@
+#include "vend.h"
+
+/* some IO addresses require buffering, so we create some generic buffering
+ * functions here
+ */
+
+/* create port-specific #defines: */
+#define buffered_port(p) \
+	u8   addr_##p##_buffer = 0; \
+	\
+	void __inline__ outb_##p(u8 b) { \
+		addr_##p##_buffer = b; \
+		outb(p, b); \
+	} \
+	\
+	void __inline__ bset_##p(u8 mask) { \
+		bset((addr_t)&addr_##p##_buffer, mask); \
+		outb(p, addr_##p##_buffer); \
+	} \
+	\
+	void __inline__ bclr_##p(u8 mask) { \
+		bclr((addr_t)&addr_##p##_buffer, mask); \
+		outb(p, addr_##p##_buffer); \
+	} 
+
+void __inline__ outb(addr_t addr, u8 byte) {
+	/* FIXME hmmm */
+	/* asm? */
+}
+
+void __inline__ bset(addr_t addr, u8 mask) {
+	/* FIXME again. asm? */
+}
+
+void __inline__ bclr(addr_t addr, u8 mask) {
+	/* FIXME again. asm? */
+}
+
+void delay(u16 ms) {
+	/* FIXME fill me in */
+}
+
+/* ports declared here must be defined with buffered_port_h() in vend.h too */
+buffered_port(3800);
+