90a1684b89
Note about the -tcc file:
HAVE_FLOAT_ASM defines if there's assembly support for float
instructions.
HAVE_FLOAT defines if there's floating point arithmetic support.
This is important for TinyCC because the assembler and the C
compiler are split. TinyCC can HAVE_FLOAT but no assembler support
for them.
* lib/riscv64-mes-gcc/setjmp.c,
lib/riscv64-mes-tcc/setjmp.c: New files.
98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
|
|
* GNU Mes --- Maxwell Equations of Software
|
|
* Copyright © 2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
|
* Copyright © 2021 W. J. van der Laan <laanwj@protonmail.com>
|
|
* Copyright © 2023 Ekaitz Zarraga <ekaitz@elenq.tech>
|
|
*
|
|
* This file is part of GNU Mes.
|
|
*
|
|
* GNU Mes 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 3 of the License, or (at
|
|
* your option) any later version.
|
|
*
|
|
* GNU Mes 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 GNU Mes. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <setjmp.h>
|
|
#include <stdlib.h>
|
|
|
|
void
|
|
longjmp (jmp_buf env, int val)
|
|
{
|
|
val = val == 0 ? 1 : val;
|
|
asm(
|
|
"ld s0, a0,0\n\t"
|
|
"ld s1, a0,8\n\t"
|
|
"ld s2, a0,16\n\t"
|
|
"ld s3, a0,24\n\t"
|
|
"ld s4, a0,32\n\t"
|
|
"ld s5, a0,40\n\t"
|
|
"ld s6, a0,48\n\t"
|
|
"ld s7, a0,56\n\t"
|
|
"ld s8, a0,64\n\t"
|
|
"ld s9, a0,72\n\t"
|
|
"ld s10,a0,80\n\t"
|
|
"ld s11,a0,88\n\t"
|
|
"ld sp, a0,96\n\t"
|
|
"ld ra, a0,104\n\t"
|
|
#if HAVE_FLOAT_ASM && HAVE_FLOAT && ! __riscv_float_abi_soft
|
|
"fld fs0, a0,112\n\t"
|
|
"fld fs1, a0,120\n\t"
|
|
"fld fs2, a0,128\n\t"
|
|
"fld fs3, a0,136\n\t"
|
|
"fld fs4, a0,144\n\t"
|
|
"fld fs5, a0,152\n\t"
|
|
"fld fs6, a0,160\n\t"
|
|
"fld fs7, a0,168\n\t"
|
|
"fld fs8, a0,176\n\t"
|
|
"fld fs9, a0,184\n\t"
|
|
"fld fs10,a0,192\n\t"
|
|
"fld fs11,a0,200\n\t"
|
|
#endif
|
|
);
|
|
}
|
|
|
|
int
|
|
setjmp (jmp_buf env)
|
|
{
|
|
asm(
|
|
"sd a0, s0,0\n\t"
|
|
"sd a0, s1,8\n\t"
|
|
"sd a0, s2,16\n\t"
|
|
"sd a0, s3,24\n\t"
|
|
"sd a0, s4,32\n\t"
|
|
"sd a0, s5,40\n\t"
|
|
"sd a0, s6,48\n\t"
|
|
"sd a0, s7,56\n\t"
|
|
"sd a0, s8,64\n\t"
|
|
"sd a0, s9,72\n\t"
|
|
"sd a0, s10,80\n\t"
|
|
"sd a0, s11,88\n\t"
|
|
"sd a0, sp,96\n\t"
|
|
"sd a0, ra,104\n\t"
|
|
#if HAVE_FLOAT_ASM && HAVE_FLOAT && ! __riscv_float_abi_soft
|
|
"fsd a0, fs0,112\n\t"
|
|
"fsd a0, fs1,120\n\t"
|
|
"fsd a0, fs2,128\n\t"
|
|
"fsd a0, fs3,136\n\t"
|
|
"fsd a0, fs4,144\n\t"
|
|
"fsd a0, fs5,152\n\t"
|
|
"fsd a0, fs6,160\n\t"
|
|
"fsd a0, fs7,168\n\t"
|
|
"fsd a0, fs8,176\n\t"
|
|
"fsd a0, fs9,184\n\t"
|
|
"fsd a0, fs10,192\n\t"
|
|
"fsd a0, fs11,200\n\t"
|
|
#endif
|
|
);
|
|
return 0;
|
|
}
|
|
|