ENC264J600 driver

- initial prototype, based on Plipbox framework
  - handles some oddities with the current CPLD by software
    workarounds, i.e. needs future changes to go along
    with updated JED
  - lots of TODO still pending

Driver/enc624j6net/compiler.h

@@ -0,0 +1,33 @@
+#ifndef __COMPILER_H
+#define __COMPILER_H
+
+#ifdef __SASC
+/* Implementation notes:
+**
+** SAS/C complains if a module contains only "static" and "extern" functions
+** that there would be no exported symbol. Therefore, the PUBLIC macro
+** is defined empty for SAS/C but should be "extern" if possible (for
+** instance with GNU CC).
+*/
+#  define ASM     __asm              /* define registers for function args */
+#  define REG(x)  register __ ## x   /* specify a register in arglist */
+#  define INLINE  __inline           /* inline this function */
+#  define STDARGS __stdargs          /* pass args to this function on stack */
+#  define REGARGS __regargs          /* pass args to this function in regs */
+#  define SAVEDS  __saveds           /* setup data segment reg. on entry */
+#  define FAR     __far              /* reference this object in far mode */
+#  define MIN     __builtin_min      /* min{} function */
+#  define MAX     __builtin_max      /* max{} function */
+#  define PUTREG __builtin_putreg    /* set a register to a certain value */
+#  define REG_D0 0                   /* reg. number for PUTREG() */
+#  define REG_D1 1                   /* reg. number for PUTREG() */
+extern void PUTREG(int, long);       /* prototype */
+#  define PUBLIC                     /* define a globally visible function */
+#  define PRIVATE static             /* define a locally visible function */
+#  define GLOBAL extern
+#else
+#  error Please define the above macros for your compiler
+#endif
+
+#endif
+