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127 lines
4.4 KiB
C
127 lines
4.4 KiB
C
/* $Id: recode-ic.c,v 1.3 2010/02/07 14:33:47 fredette Exp $ */
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/* libtme/recode-ic.c - generic support for recode ICs: */
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/*
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* Copyright (c) 2008 Matt Fredette
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Matt Fredette.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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
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* WARRANTIES 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) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <tme/common.h>
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_TME_RCSID("$Id: recode-ic.c,v 1.3 2010/02/07 14:33:47 fredette Exp $");
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#if TME_HAVE_RECODE
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/* includes: */
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#include "recode-impl.h"
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/* this initializes a new recode ic: */
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void
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tme_recode_ic_new(struct tme_recode_ic *ic,
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tme_recode_thunk_off_t size_run)
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{
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/* initialize some pointers to NULL: */
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ic->tme_recode_ic_flags_groups = NULL;
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ic->tme_recode_ic_conds_groups = NULL;
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/* initialize the dummy guest register information for the
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non-register source and destination operands: */
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(ic->tme_recode_ic_reginfo + TME_RECODE_OPERAND_ZERO)->tme_recode_reginfo_all
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= (TME_RECODE_REGINFO_TYPE_FIXED
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| !TME_RECODE_REGINFO_TAGS_VALID);
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(ic->tme_recode_ic_reginfo + TME_RECODE_OPERAND_IMM)->tme_recode_reginfo_all
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= (TME_RECODE_REGINFO_TYPE_FIXED
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| !TME_RECODE_REGINFO_TAGS_VALID);
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/* allocate the memory for building and running thunks: */
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tme_recode_host_thunks_alloc(ic, size_run);
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/* call the host function: */
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tme_recode_host_ic_new(ic);
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/* set the initial thunk offset of the first variable thunk: */
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ic->tme_recode_ic_thunk_off_variable
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= tme_recode_build_to_thunk_off(ic, ic->tme_recode_ic_thunk_build_next);
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}
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#ifdef TME_RECODE_DEBUG
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#include <stdio.h>
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/* this returns an opcode name: */
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const char *
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tme_recode_opcode_dump(unsigned int opcode)
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{
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switch (opcode) {
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case TME_RECODE_OPCODE_ANDN: return ("andn");
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case TME_RECODE_OPCODE_ORN: return ("orn");
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case TME_RECODE_OPCODE_XORN: return ("xorn");
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case TME_RECODE_OPCODE_SUB: return ("sub");
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case TME_RECODE_OPCODE_SUBC: return ("subc");
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case TME_RECODE_OPCODE_AND: return ("and");
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case TME_RECODE_OPCODE_OR: return ("or");
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case TME_RECODE_OPCODE_XOR: return ("xor");
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case TME_RECODE_OPCODE_ADD: return ("add");
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case TME_RECODE_OPCODE_ADDC: return ("addc");
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case TME_RECODE_OPCODE_SHLL: return ("shll");
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case TME_RECODE_OPCODE_SHRL: return ("shrl");
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case TME_RECODE_OPCODE_SHRA: return ("shra");
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case TME_RECODE_OPCODE_EXTZ: return ("extz");
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case TME_RECODE_OPCODE_EXTS: return ("exts");
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case TME_RECODE_OPCODE_GUEST: return ("guest");
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case TME_RECODE_OPCODE_DEFC: return ("defc");
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case TME_RECODE_OPCODE_IF: return ("if");
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case TME_RECODE_OPCODE_ELSE: return ("else");
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case TME_RECODE_OPCODE_ENDIF: return ("endif");
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default: return ("?opcode?");
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}
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}
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/* this dumps a tme_recode_uguest_t: */
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void
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tme_recode_uguest_dump(tme_recode_uguest_t val)
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{
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unsigned int resid;
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printf("0x");
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resid = sizeof(val);
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do {
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resid -= sizeof(unsigned int);
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printf("%0*x",
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(int) (sizeof(unsigned int) * 2),
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(unsigned int) (val >> (resid * 8)));
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} while (resid > 0);
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}
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#endif /* TME_RECODE_DEBUG */
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#endif /* TME_HAVE_RECODE */
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