d915a14ef0
Mainly focus on files that use BSD 2-Clause license, however the tool I was using mis-identified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
158 lines
3.8 KiB
C
158 lines
3.8 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2001 by Thomas Moestl <tmm@FreeBSD.org>.
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* 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, this list of conditions and the following disclaimer.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 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) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <machine/cpufunc.h>
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#include <machine/frame.h>
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#include <machine/instr.h>
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#include <signal.h>
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#include "__sparc_utrap_private.h"
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#include "fpu_reg.h"
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int
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__emul_insn(struct utrapframe *uf)
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{
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u_long reg, res;
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u_long *addr;
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u_int insn;
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int sig;
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int rd;
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int i;
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sig = 0;
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insn = *(u_int *)uf->uf_pc;
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flushw();
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switch (IF_OP(insn)) {
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case IOP_MISC:
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switch (IF_F3_OP3(insn)) {
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case INS2_POPC:
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if (IF_F3_RS1(insn) != 0) {
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sig = SIGILL;
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break;
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}
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reg = __emul_f3_op2(uf, insn);
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for (i = 0; i < 64; i++)
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res += (reg >> i) & 1;
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__emul_store_reg(uf, IF_F3_RD(insn), res);
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break;
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default:
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sig = SIGILL;
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break;
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}
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break;
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case IOP_LDST:
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switch (IF_F3_OP3(insn)) {
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case INS3_LDQF:
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rd = INSFPdq_RN(IF_F3_RD(insn));
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addr = (u_long *)__emul_f3_memop_addr(uf, insn);
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__fpu_setreg64(rd, addr[0]);
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__fpu_setreg64(rd + 2, addr[1]);
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break;
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case INS3_STQF:
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rd = INSFPdq_RN(IF_F3_RD(insn));
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addr = (u_long *)__emul_f3_memop_addr(uf, insn);
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addr[0] = __fpu_getreg64(rd);
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addr[1] = __fpu_getreg64(rd + 2);
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break;
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default:
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sig = SIGILL;
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break;
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}
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break;
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default:
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sig = SIGILL;
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break;
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}
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return (sig);
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}
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u_long
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__emul_fetch_reg(struct utrapframe *uf, int reg)
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{
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struct frame *frm;
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if (reg == IREG_G0)
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return (0);
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else if (reg < IREG_O0) /* global */
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return (uf->uf_global[reg]);
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else if (reg < IREG_L0) /* out */
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return (uf->uf_out[reg - IREG_O0]);
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else { /* local, in */
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/*
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* The in registers are immediately after the locals in
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* the frame.
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*/
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frm = (struct frame *)(uf->uf_out[6] + SPOFF);
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return (frm->fr_local[reg - IREG_L0]);
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}
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}
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void
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__emul_store_reg(struct utrapframe *uf, int reg, u_long val)
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{
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struct frame *frm;
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if (reg == IREG_G0)
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return;
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if (reg < IREG_O0) /* global */
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uf->uf_global[reg] = val;
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else if (reg < IREG_L0) /* out */
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uf->uf_out[reg - IREG_O0] = val;
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else {
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/*
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* The in registers are immediately after the locals in
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* the frame.
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*/
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frm = (struct frame *)(uf->uf_out[6] + SPOFF);
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frm->fr_local[reg - IREG_L0] = val;
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}
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}
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u_long
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__emul_f3_op2(struct utrapframe *uf, u_int insn)
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{
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if (IF_F3_I(insn) != 0)
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return (IF_SIMM(insn, 13));
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else
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return (__emul_fetch_reg(uf, IF_F3_RS2(insn)));
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}
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u_long
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__emul_f3_memop_addr(struct utrapframe *uf, u_int insn)
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{
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u_long addr;
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addr = __emul_f3_op2(uf, insn) + __emul_fetch_reg(uf, IF_F3_RS1(insn));
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return (addr);
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}
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