* Copyright (C) 2004, 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
+ * Copyright (C) 2007,2008 Øyvind Harboe *
+ * oyvind.harboe@zylin.com *
+ * *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
#ifndef TYPES_H
#define TYPES_H
+#ifdef HAVE_CONFIG_H
#include "config.h"
+#endif
#ifndef u8
typedef unsigned char u8;
typedef unsigned int u32;
#endif
-#ifdef WORDS_BIGENDIAN /* big endian host */
-
-#define le_to_h_u32(x) (u32)(x[0] | x[1] << 8 | x[2] << 16 | x[3] << 24)
-#define le_to_h_u16(x) (u16)(x[0] | x[1] << 8)
-#define be_to_h_u32(x) (*(u32*)(x))
-#define be_to_h_u16(x) (*(u16*)(x))
-
-#define h_u32_to_le(buf, val) \
- do { \
- buf[3] = (val & 0xff000000) >> 24; \
- buf[2] = (val & 0x00ff0000) >> 16; \
- buf[1] = (val & 0x0000ff00) >> 8; \
- buf[0] = (val & 0x000000ff); \
- } while (0)
-
-#define h_u16_to_le(buf, val) \
- do { \
- buf[0] = (val & 0xff000) >> 8; \
- buf[1] = (val & 0x00ff); \
- } while (0)
-
-#define h_u32_to_be(buf, val) do { *(u32*)(buf) = (val); } while (0)
-#define h_u16_to_be(buf, val) do { *(u16*)(buf) = (val); } while (0)
-
-#else /* little endian host */
-#define le_to_h_u32(x) (*(u32*)(x))
-#define le_to_h_u16(x) (*(u16*)(x))
-#define be_to_h_u32(x) (u32)(x[3] | x[2] << 8 | x[1] << 16 | x[0] << 24)
-#define be_to_h_u16(x) (u16)(x[1] | x[0] << 8)
-
-#define h_u32_to_le(buf, val) do { *(u32*)(buf) = (val); } while (0)
-#define h_u16_to_le(buf, val) do { *(u16*)(buf) = (val); } while (0)
-
-#define h_u32_to_be(buf, val) \
- do { \
- buf[0] = (val & 0xff000000) >> 24; \
- buf[1] = (val & 0x00ff0000) >> 16; \
- buf[2] = (val & 0x0000ff00) >> 8; \
- buf[3] = (val & 0x000000ff); \
- } while (0)
-
-#define h_u16_to_be(buf, val) \
- do { \
- buf[0] = (val & 0xff000) >> 8; \
- buf[1] = (val & 0x00ff); \
- } while (0)
+#ifndef u64
+typedef unsigned long long u64;
#endif
+typedef struct jtag_tap_s jtag_tap_t;
+
+#ifdef HAVE_STDBOOL_H
+#include <stdbool.h>
+#else /* HAVE_STDBOOL_H */
+#define __bool_true_false_are_defined 1
+
+#ifndef __cplusplus
+
+#define false 0
+#define true 1
+
+#define bool _Bool
+typedef int _Bool;
+#endif /* __cplusplus */
+
+#endif /* HAVE_STDBOOL_H */
+
+/* DANGER!!!! here be dragons!
+ *
+ * Leave these fn's as byte accesses because it is safe
+ * across architectures. Clever usage of 32 bit access
+ * will create problems on some hosts.
+ *
+ * Note that the "buf" pointer in memory is probably unaligned.
+ *
+ * Were these functions to be re-written to take a 32 bit wide or 16 bit wide
+ * memory access shortcut, then on some CPU's, i.e. ARM7, the 2 lsbytes of the address are
+ * ignored for 32 bit access, whereas on other CPU's a 32 bit wide unaligned memory access
+ * will cause an exception, and lastly on x86, an unaligned "greater than bytewide"
+ * memory access works as if aligned. So what follows below will work for all
+ * platforms and gives the compiler leeway to do its own platform specific optimizations.
+ *
+ * Again, note that the "buf" pointer in memory is probably unaligned.
+ */
+
+
+static inline u32 le_to_h_u32(const u8* buf)
+{
+ return (u32)(buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24);
+}
+
+static inline u16 le_to_h_u16(const u8* buf)
+{
+ return (u16)(buf[0] | buf[1] << 8);
+}
+
+static inline u32 be_to_h_u32(const u8* buf)
+{
+ return (u32)(buf[3] | buf[2] << 8 | buf[1] << 16 | buf[0] << 24);
+}
+
+static inline u16 be_to_h_u16(const u8* buf)
+{
+ return (u16)(buf[1] | buf[0] << 8);
+}
+
+static inline void h_u32_to_le(u8* buf, int val)
+{
+ buf[3] = (u8) (val >> 24);
+ buf[2] = (u8) (val >> 16);
+ buf[1] = (u8) (val >> 8);
+ buf[0] = (u8) (val >> 0);
+}
+
+static inline void h_u32_to_be(u8* buf, int val)
+{
+ buf[0] = (u8) (val >> 24);
+ buf[1] = (u8) (val >> 16);
+ buf[2] = (u8) (val >> 8);
+ buf[3] = (u8) (val >> 0);
+}
+
+static inline void h_u16_to_le(u8* buf, int val)
+{
+ buf[1] = (u8) (val >> 8);
+ buf[0] = (u8) (val >> 0);
+}
+
+static inline void h_u16_to_be(u8* buf, int val)
+{
+ buf[0] = (u8) (val >> 8);
+ buf[1] = (u8) (val >> 0);
+}
+
#endif /* TYPES_H */
projects / openocd / blobdiff