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Annotation of tme/ic/sparc/cy7c601.c, revision 1.1

1.1     ! root        1: /* $Id: cy7c601.c,v 1.2 2006/11/15 22:29:09 fredette Exp $ */
        !             2: 
        !             3: /* ic/m68k/cy7c601.c - implementation of Cypress SPARC CY7C601 emulation: */
        !             4: 
        !             5: /*
        !             6:  * Copyright (c) 2005 Matt Fredette
        !             7:  * All rights reserved.
        !             8:  *
        !             9:  * Redistribution and use in source and binary forms, with or without
        !            10:  * modification, are permitted provided that the following conditions
        !            11:  * are met:
        !            12:  * 1. Redistributions of source code must retain the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer.
        !            14:  * 2. Redistributions in binary form must reproduce the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer in the
        !            16:  *    documentation and/or other materials provided with the distribution.
        !            17:  * 3. All advertising materials mentioning features or use of this software
        !            18:  *    must display the following acknowledgement:
        !            19:  *      This product includes software developed by Matt Fredette.
        !            20:  * 4. The name of the author may not be used to endorse or promote products
        !            21:  *    derived from this software without specific prior written permission.
        !            22:  *
        !            23:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            24:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
        !            25:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
        !            26:  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
        !            27:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
        !            28:  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
        !            29:  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
        !            31:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
        !            32:  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            33:  * POSSIBILITY OF SUCH DAMAGE.
        !            34:  */
        !            35: 
        !            36: #include <tme/common.h>
        !            37: _TME_RCSID("$Id: cy7c601.c,v 1.2 2006/11/15 22:29:09 fredette Exp $");
        !            38: 
        !            39: /* includes: */
        !            40: #include "sparc-impl.h"
        !            41: 
        !            42: /* the format three opcode map: */
        !            43: #define _TME_SPARC_EXECUTE_OPMAP tme_sparc_opcodes_cy7c601
        !            44: const _tme_sparc32_format3 _TME_SPARC_EXECUTE_OPMAP[] = {
        !            45: 
        !            46:   /* op=2: arithmetic, logical, shift, and remaining: */
        !            47: 
        !            48:   /* 000000 */ tme_sparc32_add,
        !            49:   /* 000001 */ tme_sparc32_and,
        !            50:   /* 000010 */ tme_sparc32_or,
        !            51:   /* 000011 */ tme_sparc32_xor,
        !            52:   /* 000100 */ tme_sparc32_sub,
        !            53:   /* 000101 */ tme_sparc32_andn,
        !            54:   /* 000110 */ tme_sparc32_orn,
        !            55:   /* 000111 */ tme_sparc32_xnor,
        !            56:   /* 001000 */ tme_sparc32_addx,
        !            57:   /* 001001 */ NULL,
        !            58:   /* 001010 */ tme_sparc32_illegal, /* the CY7C601 does not implement umul */
        !            59:   /* 001011 */ tme_sparc32_illegal, /* the CY7C601 does not implement smul */
        !            60:   /* 001100 */ tme_sparc32_subx,
        !            61:   /* 001101 */ NULL,
        !            62:   /* 001110 */ tme_sparc32_illegal, /* the CY7C601 does not implement udiv */
        !            63:   /* 001111 */ tme_sparc32_illegal, /* the CY7C601 does not implement sdiv */
        !            64:   /* 010000 */ tme_sparc32_addcc,
        !            65:   /* 010001 */ tme_sparc32_andcc,
        !            66:   /* 010010 */ tme_sparc32_orcc,
        !            67:   /* 010011 */ tme_sparc32_xorcc,
        !            68:   /* 010100 */ tme_sparc32_subcc,
        !            69:   /* 010101 */ tme_sparc32_andncc,
        !            70:   /* 010110 */ tme_sparc32_orncc,
        !            71:   /* 010111 */ tme_sparc32_xnorcc,
        !            72:   /* 011000 */ tme_sparc32_addxcc,
        !            73:   /* 011001 */ NULL,
        !            74:   /* 011010 */ tme_sparc32_illegal, /* the CY7C601 does not implement umulcc */
        !            75:   /* 011011 */ tme_sparc32_illegal, /* the CY7C601 does not implement smulcc */
        !            76:   /* 011100 */ tme_sparc32_subxcc,
        !            77:   /* 011101 */ NULL,
        !            78:   /* 011110 */ tme_sparc32_illegal, /* the CY7C601 does not implement udivcc */
        !            79:   /* 011111 */ tme_sparc32_illegal, /* the CY7C601 does not implement sdivcc */
        !            80:   /* 100000 */ tme_sparc32_taddcc,
        !            81:   /* 100001 */ tme_sparc32_tsubcc,
        !            82:   /* 100010 */ tme_sparc32_taddcctv,
        !            83:   /* 100011 */ tme_sparc32_tsubcctv,
        !            84:   /* 100100 */ tme_sparc32_mulscc,
        !            85:   /* 100101 */ tme_sparc32_sll,
        !            86:   /* 100110 */ tme_sparc32_srl,
        !            87:   /* 100111 */ tme_sparc32_sra,
        !            88:   /* 101000 */ tme_sparc32_rdasr,
        !            89:   /* 101001 */ tme_sparc32_rdpsr,
        !            90:   /* 101010 */ tme_sparc32_rdwim,
        !            91:   /* 101011 */ tme_sparc32_rdtbr,
        !            92:   /* 101100 */ NULL,
        !            93:   /* 101101 */ NULL,
        !            94:   /* 101110 */ NULL,
        !            95:   /* 101111 */ NULL,
        !            96:   /* 110000 */ tme_sparc32_wrasr,
        !            97:   /* 110001 */ tme_sparc32_wrpsr,
        !            98:   /* 110010 */ tme_sparc32_wrwim,
        !            99:   /* 110011 */ tme_sparc32_wrtbr,
        !           100:   /* 110100 */ tme_sparc32_fpop1,
        !           101:   /* 110101 */ tme_sparc32_fpop2,
        !           102:   /* 110110 */ tme_sparc32_cpop1,
        !           103:   /* 110111 */ tme_sparc32_cpop2,
        !           104:   /* 111000 */ tme_sparc32_jmpl,
        !           105:   /* 111001 */ tme_sparc32_rett,
        !           106:   /* 111010 */ tme_sparc32_ticc,
        !           107:   /* 111011 */ tme_sparc32_flush,
        !           108:   /* 111100 */ tme_sparc32_save_restore,
        !           109:   /* 111101 */ tme_sparc32_save_restore,
        !           110:   /* 111110 */ NULL,
        !           111:   /* 111111 */ NULL,
        !           112: 
        !           113:   /* op=3: memory instructions: */
        !           114: 
        !           115:   /* 000000 */ tme_sparc32_ld,
        !           116:   /* 000001 */ tme_sparc32_ldb,
        !           117:   /* 000010 */ tme_sparc32_ldh,
        !           118:   /* 000011 */ tme_sparc32_ldd,
        !           119:   /* 000100 */ tme_sparc32_st,
        !           120:   /* 000101 */ tme_sparc32_stb,
        !           121:   /* 000110 */ tme_sparc32_sth,
        !           122:   /* 000111 */ tme_sparc32_std,
        !           123:   /* 001000 */ NULL,
        !           124:   /* 001001 */ tme_sparc32_ldb,
        !           125:   /* 001010 */ tme_sparc32_ldh,
        !           126:   /* 001011 */ NULL,
        !           127:   /* 001100 */ NULL,
        !           128:   /* 001101 */ tme_sparc32_ldstub,
        !           129:   /* 001110 */ NULL,
        !           130:   /* 001111 */ tme_sparc32_swap,
        !           131:   /* 010000 */ tme_sparc32_lda,
        !           132:   /* 010001 */ tme_sparc32_ldba,
        !           133:   /* 010010 */ tme_sparc32_ldha,
        !           134:   /* 010011 */ tme_sparc32_ldda,
        !           135:   /* 010100 */ tme_sparc32_sta,
        !           136:   /* 010101 */ tme_sparc32_stba,
        !           137:   /* 010110 */ tme_sparc32_stha,
        !           138:   /* 010111 */ tme_sparc32_stda,
        !           139:   /* 011000 */ NULL,
        !           140:   /* 011001 */ tme_sparc32_ldba,
        !           141:   /* 011010 */ tme_sparc32_ldha,
        !           142:   /* 011011 */ NULL,
        !           143:   /* 011100 */ NULL,
        !           144:   /* 011101 */ tme_sparc32_ldstuba,
        !           145:   /* 011110 */ NULL,
        !           146:   /* 011111 */ tme_sparc32_swapa,
        !           147:   /* 100000 */ tme_sparc32_ldf,
        !           148:   /* 100001 */ tme_sparc32_ldfsr,
        !           149:   /* 100010 */ NULL,
        !           150:   /* 100011 */ tme_sparc32_lddf,
        !           151:   /* 100100 */ tme_sparc32_stf,
        !           152:   /* 100101 */ tme_sparc32_stfsr,
        !           153:   /* 100110 */ tme_sparc32_stdfq,
        !           154:   /* 100111 */ tme_sparc32_stdf,
        !           155:   /* 101000 */ NULL,
        !           156:   /* 101001 */ NULL,
        !           157:   /* 101010 */ NULL,
        !           158:   /* 101011 */ NULL,
        !           159:   /* 101100 */ NULL,
        !           160:   /* 101101 */ NULL,
        !           161:   /* 101110 */ NULL,
        !           162:   /* 101111 */ NULL,
        !           163:   /* 110000 */ tme_sparc32_ldc,
        !           164:   /* 110001 */ tme_sparc32_ldcsr,
        !           165:   /* 110010 */ NULL,
        !           166:   /* 110011 */ tme_sparc32_lddc,
        !           167:   /* 110100 */ tme_sparc32_stc,
        !           168:   /* 110101 */ tme_sparc32_stcsr,
        !           169:   /* 110110 */ tme_sparc32_stdcq,
        !           170:   /* 110111 */ tme_sparc32_stdc,
        !           171:   /* 111000 */ NULL,
        !           172:   /* 111001 */ NULL,
        !           173:   /* 111010 */ NULL,
        !           174:   /* 111011 */ NULL,
        !           175:   /* 111100 */ NULL,
        !           176:   /* 111101 */ NULL,
        !           177:   /* 111110 */ NULL,
        !           178:   /* 111111 */ NULL,
        !           179: };
        !           180: 
        !           181: /* make the executor for the CY7C601: */
        !           182: #undef  TME_SPARC_VERSION
        !           183: #define TME_SPARC_VERSION(ic)  (7)
        !           184: #undef  TME_SPARC_NWINDOWS
        !           185: #define TME_SPARC_NWINDOWS(ic) (8)
        !           186: #define _TME_SPARC_EXECUTE_NAME _tme_sparc_execute_cy7c601
        !           187: #include "sparc-execute.c"
        !           188: 
        !           189: /* this returns the version of an FPU for an cy7c601: */
        !           190: static tme_uint32_t
        !           191: _tme_sparc_fpu_ver_cy7c601(struct tme_sparc *ic, const char *fpu_name, char **_output)
        !           192: {
        !           193:   tme_uint32_t ver;
        !           194: 
        !           195:   /* if we're returning a usage: */
        !           196:   if (_output != NULL) {
        !           197:     tme_output_append_error(_output, 
        !           198:                            "{ l64812/act8847 | l64814 | tms390-c602A | wtl3171/cy7c602 }");
        !           199:     return (TME_SPARC_FSR_VER_missing);
        !           200:   }
        !           201: 
        !           202:   if (TME_ARG_IS(fpu_name, "l64812/act8847")) {
        !           203:     ver = 0;
        !           204:   }
        !           205:   else if (TME_ARG_IS(fpu_name, "l64814")) {
        !           206:     ver = 1;
        !           207:   }
        !           208:   else if (TME_ARG_IS(fpu_name, "tms390-c602A")) {
        !           209:     ver = 2;
        !           210:   }
        !           211:   else if (TME_ARG_IS(fpu_name, "wtl3171/cy7c602")) {
        !           212:     ver = 3;
        !           213:   }
        !           214:   else {
        !           215:     return (TME_SPARC_FSR_VER_missing);
        !           216:   }
        !           217: 
        !           218:   ic->tme_sparc_fpu_flags
        !           219:     = (TME_SPARC_FPU_FLAG_NO_QUAD
        !           220:        | TME_SPARC_FPU_FLAG_NO_FMUL_WIDER
        !           221:        | TME_SPARC_FPU_FLAG_OK_REG_MISALIGNED);
        !           222:   return (ver * _TME_FIELD_MASK_FACTOR(TME_SPARC_FSR_VER));
        !           223: }
        !           224: 
        !           225: /* this creates and returns a new cy7c601: */
        !           226: TME_ELEMENT_X_NEW_DECL(tme_ic_,sparc,cy7c601) {
        !           227:   struct tme_sparc *ic;
        !           228:   tme_uint32_t psr;
        !           229: 
        !           230:   /* allocate the sparc structure: */
        !           231:   ic = tme_new0(struct tme_sparc, 1);
        !           232:   ic->tme_sparc_element = element;
        !           233: 
        !           234:   /* fill in the cy7c601-specific parts of the structure: */
        !           235:   psr = 0;
        !           236:   TME_FIELD_MASK_DEPOSITU(psr, TME_SPARC32_PSR_IMPL, 1);
        !           237:   TME_FIELD_MASK_DEPOSITU(psr, TME_SPARC32_PSR_VER, 1);
        !           238:   ic->tme_sparc32_ireg_psr = psr;
        !           239:   ic->tme_sparc_version = TME_SPARC_VERSION(ic);
        !           240:   ic->tme_sparc_nwindows = TME_SPARC_NWINDOWS(ic);
        !           241:   ic->_tme_sparc_execute = _tme_sparc_execute_cy7c601;
        !           242:   ic->_tme_sparc_fpu_ver = _tme_sparc_fpu_ver_cy7c601;
        !           243:   ic->_tme_sparc_bus_fault = tme_sparc32_bus_fault;
        !           244:   ic->_tme_sparc_fetch_slow = tme_sparc32_fetch_slow;
        !           245: 
        !           246:   /* call the common sparc new function: */
        !           247:   return (tme_sparc_new(ic, args, extra, _output));
        !           248: }
        !           249: 
        !           250: #undef  TME_SPARC_VERSION
        !           251: #define TME_SPARC_VERSION(ic) _TME_SPARC_VERSION(ic)
        !           252: #undef  TME_SPARC_NWINDOWS
        !           253: #define TME_SPARC_NWINDOWS(ic) _TME_SPARC_NWINDOWS(ic)
        !           254: #undef _TME_SPARC_EXECUTE_NAME
        !           255: #undef _TME_SPARC_EXECUTE_OPMAP

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