MIPS: math-emu: Add support for the MIPS R6 RINT FPU instruction
MIPS R6 introduced the following instruction: Floating-Point Round to Integral Scalar floating-point round to integral floating point value. RINT.fmt: FPR[fd] = round_int(FPR[fs]) Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10958/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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83d43305a1
Коммит
400bd2e413
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@ -1791,6 +1791,18 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
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break;
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break;
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}
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}
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case frint_op: {
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union ieee754sp fs;
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if (!cpu_has_mips_r6)
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return SIGILL;
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SPFROMREG(fs, MIPSInst_FS(ir));
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rv.l = ieee754sp_tlong(fs);
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rv.s = ieee754sp_flong(rv.l);
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goto copcsr;
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}
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case fabs_op:
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case fabs_op:
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handler.u = ieee754sp_abs;
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handler.u = ieee754sp_abs;
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goto scopuop;
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goto scopuop;
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@ -2037,6 +2049,18 @@ copcsr:
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break;
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break;
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}
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}
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case frint_op: {
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union ieee754dp fs;
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if (!cpu_has_mips_r6)
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return SIGILL;
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DPFROMREG(fs, MIPSInst_FS(ir));
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rv.l = ieee754dp_tlong(fs);
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rv.d = ieee754dp_flong(rv.l);
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goto copcsr;
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}
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case fabs_op:
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case fabs_op:
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handler.u = ieee754dp_abs;
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handler.u = ieee754dp_abs;
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goto dcopuop;
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goto dcopuop;
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