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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * Linux/PA-RISC Project (http://www.parisc-linux.org/)
- *
- * Floating-point emulation code
- * Copyright (C) 2001 Hewlett-Packard (Paul Bame) <[email protected]>
- */
- #ifdef __NO_PA_HDRS
- PA header file -- do not include this header file for non-PA builds.
- #endif
- /*
- * These macros are designed to be portable to all machines that have
- * a wordsize greater than or equal to 32 bits that support the portable
- * C compiler and the standard C preprocessor. Wordsize (default 32)
- * and bitfield assignment (default left-to-right, unlike VAX, PDP-11)
- * should be predefined using the constants HOSTWDSZ and BITFRL and
- * the C compiler "-D" flag (e.g., -DHOSTWDSZ=36 -DBITFLR for the DEC-20).
- * Note that the macro arguments assume that the integer being referenced
- * is a 32-bit integer (right-justified on the 20) and that bit 0 is the
- * most significant bit.
- */
- #ifndef HOSTWDSZ
- #define HOSTWDSZ 32
- #endif
- /*########################### Macros ######################################*/
- /*-------------------------------------------------------------------------
- * NewDeclareBitField_Reference - Declare a structure similar to the simulator
- * function "DeclBitfR" except its use is restricted to occur within a larger
- * enclosing structure or union definition. This declaration is an unnamed
- * structure with the argument, name, as the member name and the argument,
- * uname, as the element name.
- *----------------------------------------------------------------------- */
- #define Bitfield_extract(start, length, object) \
- ((object) >> (HOSTWDSZ - (start) - (length)) & \
- ((unsigned)-1 >> (HOSTWDSZ - (length))))
- #define Bitfield_signed_extract(start, length, object) \
- ((int)((object) << start) >> (HOSTWDSZ - (length)))
- #define Bitfield_mask(start, len, object) \
- ((object) & (((unsigned)-1 >> (HOSTWDSZ-len)) << (HOSTWDSZ-start-len)))
- #define Bitfield_deposit(value,start,len,object) object = \
- ((object) & ~(((unsigned)-1 >> (HOSTWDSZ-len)) << (HOSTWDSZ-start-len))) | \
- (((value) & ((unsigned)-1 >> (HOSTWDSZ-len))) << (HOSTWDSZ-start-len))
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