initial commit

oscar64/include/time.c

@@ -0,0 +1,56 @@
+#include "time.h"
+
+clock_t clock(void)
+{
+	__asm
+	{
+#if defined(__PLUS4__)
+		lda $a5
+		sta accu + 0
+		lda $a4
+		sta accu + 1
+		lda $a3
+		sta accu + 2
+		lda #0
+		sta accu + 3
+#elif defined(__CBMPET__)
+		lda $8f
+		sta accu + 0
+		lda $8e
+		sta accu + 1
+		lda $8d
+		sta accu + 2
+		lda #0
+		sta accu + 3
+#elif defined(__ATARI__)
+loop:
+		lda $14
+		ldx $13
+		ldy $12
+		cmp $14
+		bne loop
+		
+		sta accu + 0
+		stx accu + 1
+		sty accu + 2
+		lda #0
+		sta accu + 3		
+#elif defined(__X16__)
+		jsr $ffde
+		sta accu + 0
+		stx accu + 1
+		sty accu + 2
+		lda #0
+		sta accu + 3
+#else
+		lda $a2
+		sta accu + 0
+		lda $a1
+		sta accu + 1
+		lda $a0
+		sta accu + 2
+		lda #0
+		sta accu + 3
+#endif
+	}
+}