From 0894a1e7664504312a9cdfc826eef89030aaaa1b Mon Sep 17 00:00:00 2001
From: Uros Majstorovic <majstor@majstor.org>
Date: Wed, 5 Aug 2020 02:52:42 +0200
Subject: new directory sructure for fe310 fw

---
 code/fe310/bsp/include/sifive/bits.h | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 code/fe310/bsp/include/sifive/bits.h

(limited to 'code/fe310/bsp/include/sifive/bits.h')

diff --git a/code/fe310/bsp/include/sifive/bits.h b/code/fe310/bsp/include/sifive/bits.h
new file mode 100644
index 0000000..bfe656f
--- /dev/null
+++ b/code/fe310/bsp/include/sifive/bits.h
@@ -0,0 +1,36 @@
+// See LICENSE for license details.
+#ifndef _RISCV_BITS_H
+#define _RISCV_BITS_H
+
+#define likely(x) __builtin_expect((x), 1)
+#define unlikely(x) __builtin_expect((x), 0)
+
+#define ROUNDUP(a, b) ((((a)-1)/(b)+1)*(b))
+#define ROUNDDOWN(a, b) ((a)/(b)*(b))
+
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define CLAMP(a, lo, hi) MIN(MAX(a, lo), hi)
+
+#define EXTRACT_FIELD(val, which) (((val) & (which)) / ((which) & ~((which)-1)))
+#define INSERT_FIELD(val, which, fieldval) (((val) & ~(which)) | ((fieldval) * ((which) & ~((which)-1))))
+
+#define STR(x) XSTR(x)
+#define XSTR(x) #x
+
+#if __riscv_xlen == 64
+# define SLL32    sllw
+# define STORE    sd
+# define LOAD     ld
+# define LWU      lwu
+# define LOG_REGBYTES 3
+#else
+# define SLL32    sll
+# define STORE    sw
+# define LOAD     lw
+# define LWU      lw
+# define LOG_REGBYTES 2
+#endif
+#define REGBYTES (1 << LOG_REGBYTES)
+
+#endif
-- 
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