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https://gitlab.com/freepascal.org/fpc/source.git
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f85a8159ef
* rtl/embedded/system.pp: removed (commented out) FPU initialization from initialization of system unit, was dead code anyway because FPC_HAS_FEATURE_FPU is never defined and "feature FPU" does not exist. * rtl/mips/*.inc: don't compile FPU instructions if compiling RTL with -CfNONE or -CfSOFT (however, handling these switches for MIPS targets in compiler needs further fixing). git-svn-id: trunk@28670 -
87 lines
2.6 KiB
PHP
87 lines
2.6 KiB
PHP
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 2002 by Jonas Maebe and David Zhang
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SetJmp and LongJmp implementation for exception handling
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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procedure fpc_longjmp(var s : jmp_buf;value:longint);assembler;nostackframe;[Public,alias:'FPC_LONGJMP'];compilerproc;
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asm
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lw $31,jmp_buf.ra($a0)
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lw $sp,jmp_buf.sp($a0)
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lw $s0,jmp_buf.s0($a0)
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lw $s1,jmp_buf.s1($a0)
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lw $s2,jmp_buf.s2($a0)
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lw $s3,jmp_buf.s3($a0)
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lw $s4,jmp_buf.s4($a0)
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lw $s5,jmp_buf.s5($a0)
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lw $s6,jmp_buf.s6($a0)
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lw $s7,jmp_buf.s7($a0)
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lw $fp,jmp_buf.fp($a0)
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lw $gp,jmp_buf.gp($a0)
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{$if defined(FPUMIPS2) or defined(FPUMIPS3)}
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lw $v0,jmp_buf._fcsr($a0)
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ctc1 $v0,$31
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lwc1 $f20,jmp_buf.f20($a0)
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lwc1 $f21,jmp_buf.f21($a0)
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lwc1 $f22,jmp_buf.f22($a0)
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lwc1 $f23,jmp_buf.f23($a0)
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lwc1 $f24,jmp_buf.f24($a0)
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lwc1 $f25,jmp_buf.f25($a0)
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lwc1 $f26,jmp_buf.f26($a0)
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lwc1 $f27,jmp_buf.f27($a0)
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lwc1 $f28,jmp_buf.f28($a0)
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lwc1 $f29,jmp_buf.f29($a0)
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lwc1 $f30,jmp_buf.f30($a0)
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lwc1 $f31,jmp_buf.f31($a0)
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{$endif FPUMIPS2 or FPUMIPS3}
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// Put value into register $2 as in setjmp
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move $v0,$a1
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bne $a1,$zero,.L1
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nop
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addiu $v0,$zero,1
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.L1:
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end;
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function fpc_setjmp(var S:jmp_buf):longint;assembler;nostackframe;[Public,alias:'FPC_SETJMP'];compilerproc;
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asm
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sw $31,jmp_buf.ra($a0)
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sw $sp,jmp_buf.sp($a0)
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sw $s0,jmp_buf.s0($a0)
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sw $s1,jmp_buf.s1($a0)
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sw $s2,jmp_buf.s2($a0)
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sw $s3,jmp_buf.s3($a0)
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sw $s4,jmp_buf.s4($a0)
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sw $s5,jmp_buf.s5($a0)
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sw $s6,jmp_buf.s6($a0)
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sw $s7,jmp_buf.s7($a0)
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sw $fp,jmp_buf.fp($a0)
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sw $gp,jmp_buf.gp($a0)
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{$if defined(FPUMIPS2) or defined(FPUMIPS3)}
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cfc1 $v0,$31
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sw $v0,jmp_buf._fcsr($a0)
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swc1 $f20,jmp_buf.f20($a0)
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swc1 $f21,jmp_buf.f21($a0)
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swc1 $f22,jmp_buf.f22($a0)
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swc1 $f23,jmp_buf.f23($a0)
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swc1 $f24,jmp_buf.f24($a0)
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swc1 $f25,jmp_buf.f25($a0)
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swc1 $f26,jmp_buf.f26($a0)
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swc1 $f27,jmp_buf.f27($a0)
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swc1 $f28,jmp_buf.f28($a0)
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swc1 $f29,jmp_buf.f29($a0)
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swc1 $f30,jmp_buf.f30($a0)
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swc1 $f31,jmp_buf.f31($a0)
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{$endif FPUMIPS2 or FPUMIPS3}
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move $v0,$zero
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end;
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