sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 86 insertions, 0 deletions

diff --git a/device/lib/_rlulonglong.c b/device/lib/_rlulonglong.c
new file mode 100644
index 0000000..191d0a0
--- /dev/null
+++ b/device/lib/_rlulonglong.c
@@ -0,0 +1,86 @@
+/*-------------------------------------------------------------------------
+   _rlulonglong.c - routine for left shift of 64 bit unsigned long long
+
+   Copyright (C) 2012, Philipp Klaus Krause . philipp@informatik.uni-frankfurt.de
+
+   This library 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, or (at your option) any
+   later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License 
+   along with this library; see the file COPYING. If not, write to the
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
+   MA 02110-1301, USA.
+
+   As a special exception, if you link this library with other files,
+   some of which are compiled with SDCC, to produce an executable,
+   this library does not by itself cause the resulting executable to
+   be covered by the GNU General Public License. This exception does
+   not however invalidate any other reasons why the executable file
+   might be covered by the GNU General Public License.
+-------------------------------------------------------------------------*/
+
+#pragma std_c99
+
+#include <stdint.h>
+
+#ifdef __SDCC_LONGLONG
+
+#if defined(__SDCC_hc08) || defined(__SDCC_s08) || defined(__SDCC_stm8) // Big-endian
+
+unsigned long long _rlulonglong(unsigned long long l, char s)
+{
+	uint32_t *const top = (uint32_t *)((char *)(&l) + 0);
+	uint16_t *const middle = (uint16_t *)((char *)(&l) + 4);
+	uint32_t *const bottom = (uint32_t *)((char *)(&l) + 4);
+	uint16_t *const b = (uint16_t *)(&l);
+
+	for(;s >= 16; s-= 16)
+	{
+		b[0] = b[1];
+		b[1] = b[2];
+		b[2] = b[3];
+		b[3] = 0;
+	}
+
+	(*top) <<= s;
+	(*top) |= (((uint32_t)((*middle) & 0xffffu) << s) >> 16);
+	(*bottom) <<= s;
+
+	return(l);
+}
+
+#else // Little-endian
+
+unsigned long long _rlulonglong(unsigned long long l, char s)
+{
+	uint32_t *const top = (uint32_t *)((char *)(&l) + 4);
+	uint16_t *const middle = (uint16_t *)((char *)(&l) + 2);
+	uint32_t *const bottom = (uint32_t *)(&l);
+	uint16_t *const b = (uint16_t *)(&l);
+
+	for(;s >= 16; s-= 16)
+	{
+		b[3] = b[2];
+		b[2] = b[1];
+		b[1] = b[0];
+		b[0] = 0;
+	}
+
+	(*top) <<= s;
+	(*top) |= (((uint32_t)((*middle) & 0xffffu) << s) >> 16);
+	(*bottom) <<= s;
+
+	return(l);
+}
+
+#endif
+
+#endif
+