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7164aacfce
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembly code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This can be very confusing when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. So let's standardize on the __ASSEMBLER__ macro that is provided by the compilers now. This is almost a completely mechanical patch (done with a simple "sed -i" statement), with one comment tweaked manually in arch/m68k/include/asm/mac_baboon.h (which was missing underscores). Signed-off-by: Thomas Huth <thuth@redhat.com> Acked-by: Greg Ungerer <gerg@linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/20250611114056.118309-3-thuth@redhat.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
146 lines
4.2 KiB
C
146 lines
4.2 KiB
C
/*
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* fp_emu.h
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*
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* Copyright Roman Zippel, 1997. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, and the entire permission notice in its entirety,
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* including the disclaimer of warranties.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* ALTERNATIVELY, this product may be distributed under the terms of
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* the GNU General Public License, in which case the provisions of the GPL are
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* required INSTEAD OF the above restrictions. (This clause is
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* necessary due to a potential bad interaction between the GPL and
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* the restrictions contained in a BSD-style copyright.)
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _FP_EMU_H
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#define _FP_EMU_H
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#ifdef __ASSEMBLER__
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#include <asm/asm-offsets.h>
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#endif
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#include <asm/math-emu.h>
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#ifndef __ASSEMBLER__
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#define IS_INF(a) ((a)->exp == 0x7fff)
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#define IS_ZERO(a) ((a)->mant.m64 == 0)
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#define fp_set_sr(bit) ({ \
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FPDATA->fpsr |= 1 << (bit); \
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})
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#define fp_set_quotient(quotient) ({ \
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FPDATA->fpsr &= 0xff00ffff; \
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FPDATA->fpsr |= ((quotient) & 0xff) << 16; \
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})
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/* linkage for several useful functions */
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/* Normalize the extended struct, return 0 for a NaN */
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#define fp_normalize_ext(fpreg) ({ \
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register struct fp_ext *reg asm ("a0") = fpreg; \
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register int res asm ("d0"); \
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\
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asm volatile ("jsr fp_conv_ext2ext" \
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: "=d" (res) : "a" (reg) \
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: "a1", "d1", "d2", "memory"); \
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res; \
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})
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#define fp_copy_ext(dest, src) ({ \
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*dest = *src; \
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})
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#define fp_monadic_check(dest, src) ({ \
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fp_copy_ext(dest, src); \
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if (!fp_normalize_ext(dest)) \
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return dest; \
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})
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#define fp_dyadic_check(dest, src) ({ \
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if (!fp_normalize_ext(dest)) \
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return dest; \
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if (!fp_normalize_ext(src)) { \
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fp_copy_ext(dest, src); \
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return dest; \
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} \
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})
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extern const struct fp_ext fp_QNaN;
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extern const struct fp_ext fp_Inf;
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#define fp_set_nan(dest) ({ \
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fp_set_sr(FPSR_EXC_OPERR); \
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*dest = fp_QNaN; \
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})
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/* TODO check rounding mode? */
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#define fp_set_ovrflw(dest) ({ \
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fp_set_sr(FPSR_EXC_OVFL); \
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dest->exp = 0x7fff; \
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dest->mant.m64 = 0; \
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})
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#define fp_conv_ext2long(src) ({ \
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register struct fp_ext *__src asm ("a0") = src; \
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register int __res asm ("d0"); \
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\
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asm volatile ("jsr fp_conv_ext2long" \
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: "=d" (__res) : "a" (__src) \
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: "a1", "d1", "d2", "memory"); \
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__res; \
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})
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#define fp_conv_long2ext(dest, src) ({ \
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register struct fp_ext *__dest asm ("a0") = dest; \
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register int __src asm ("d0") = src; \
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\
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asm volatile ("jsr fp_conv_ext2long" \
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: : "d" (__src), "a" (__dest) \
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: "a1", "d1", "d2", "memory"); \
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})
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#else /* __ASSEMBLER__ */
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/*
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* set, reset or clear a bit in the fp status register
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*/
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.macro fp_set_sr bit
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bset #(\bit&7),(FPD_FPSR+3-(\bit/8),FPDATA)
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.endm
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.macro fp_clr_sr bit
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bclr #(\bit&7),(FPD_FPSR+3-(\bit/8),FPDATA)
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.endm
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.macro fp_tst_sr bit
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btst #(\bit&7),(FPD_FPSR+3-(\bit/8),FPDATA)
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.endm
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#endif /* __ASSEMBLER__ */
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#endif /* _FP_EMU_H */
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