diff options
Diffstat (limited to 'misc/pascal/insn32/libinsn/pgen.c')
-rw-r--r-- | misc/pascal/insn32/libinsn/pgen.c | 765 |
1 files changed, 383 insertions, 382 deletions
diff --git a/misc/pascal/insn32/libinsn/pgen.c b/misc/pascal/insn32/libinsn/pgen.c index d6584147d..a3219d388 100644 --- a/misc/pascal/insn32/libinsn/pgen.c +++ b/misc/pascal/insn32/libinsn/pgen.c @@ -1,382 +1,383 @@ -/**********************************************************************
- * pgen.c
- * P-Code generation logic
- *
- * Copyright (C) 2008 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- **********************************************************************/
-
-/**********************************************************************
- * Included Files
- **********************************************************************/
-
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-
-#include "config.h" /* Configuration */
-#include "keywords.h" /* Standard types */
-#include "pdefs.h" /* Common types */
-#include "pofflib.h" /* POFF library definitions */
-#include "podefs.h" /* Logical opcode definitions */
-#include "pedefs.h" /* Error codes */
-#include "pinsn32.h" /* 32-bit target INSN opcode definitions */
-#include "perr.h" /* Error handling logic */
-
-#include "pinsn.h" /* (to verify prototypes in this file) */
-
-/**********************************************************************
- * Definitions
- **********************************************************************/
-
-#define INVALID_INCLUDE (-1)
-
-/**********************************************************************
- * Global Variables
- **********************************************************************/
-
-extern poffHandle_t poffHandle; /* Handle to POFF object */
-extern FILE *lstFile; /* LIST file pointer */
-extern sint16 level; /* Static nesting level */
-
-/**********************************************************************
- * Private Variables
- **********************************************************************/
-
-static const ubyte opmap[NUM_OPCODES] =
-{
- oNOP, /* opNOP */
- oNEG, /* opNEG */
- oABS, /* opABS */
- oINC, /* opINC */
- oDEC, /* opDEC */
- oNOT, /* opNOT */
- oADD, /* opADD */
- oSUB, /* opSUB */
- oMUL, /* opMUL */
- oDIV, /* opDIV */
- oMOD, /* opMOD */
- oSLL, /* opSLL */
- oSRL, /* opSRL */
- oSRA, /* opSRA */
- oOR, /* opOR */
- oAND, /* opAND */
- oEQUZ, /* opEQUZ */
- oNEQZ, /* opNEQZ */
- oLTZ, /* opLTZ */
- oGTEZ, /* opGTEZ */
- oGTZ, /* opGTZ */
- oLTEZ, /* opLTEZ */
- oEQU, /* opEQU */
- oNEQ, /* opNEQ */
- oLT, /* opLT */
- oGTE, /* opGTE */
- oGT, /* opGT */
- oLTE, /* opLTE */
- oBIT, /* opBIT */
- oLDI, /* opLDI */
- oLDIB, /* opLDIB */
- oLDIM, /* opLDIM */
- oSTI, /* opSTI */
- oSTIB, /* opSTIB */
- oSTIM, /* opSTIM */
- oDUP, /* opDUP */
- oPUSHS, /* opPUSHS */
- oPOPS, /* opPOPS */
- oRET, /* opRET */
- oEND, /* opEND */
- oFLOAT, /* opFLOAT */
- oJEQUZ, /* opJEQUZ */
- oJNEQZ, /* opJNEQZ */
- oJMP, /* opJMP */
- oJEQU, /* opJEQU */
- oJNEQ, /* opJNEQ */
- oJLT, /* opJLT */
- oJGTE, /* opJGTE */
- oJGT, /* opJGT */
- oJLTE, /* opJLTE */
- oLD, /* opLD */
- oLDH, /* opLDH */
- oLDB, /* opLDB */
- oLDM, /* opLDM */
- oST, /* opST */
- oSTB, /* opSTB */
- oSTM, /* opSTM */
- oLDX, /* opLDX */
- oLDXB, /* opLDXB */
- oLDXM, /* opLDXM */
- oSTX, /* opSTX */
- oSTXB, /* opSTXB */
- oSTXM, /* opSTXM */
- oLA, /* opLA */
- oLAC, /* opLAC */
- oPUSH, /* opPUSH */
- oINDS, /* opINDS */
- oLAX, /* opLAX */
- oLIB, /* opLIB */
- oLABEL, /* opLABEL */
- oPCAL, /* opPCAL */
- oLDS, /* opLDS */
- oLDSH, /* opLDSH */
- oLDSB, /* opLDSB */
- oLDSM, /* opLDSM */
- oSTS, /* opSTS */
- oSTSB, /* opSTSB */
- oSTSM, /* opSTSM */
- oLDSX, /* opLDSX */
- oLDSXB, /* opLDSXB */
- oLDSXM, /* opLDSXM */
- oSTSX, /* opSTSX */
- oSTSXB, /* opSTSXB */
- oSTSXM, /* opSTSXM */
- oLAS, /* opLAS */
- oLASX, /* opLASX */
- oSYSIO, /* opSYSIO */
- oLINE, /* opLINE */
-};
-
-static uint16 g_nCurrentIncludeNumber = INVALID_INCLUDE;
-
-/***********************************************************************
- * Private Function Prototypes
- ***********************************************************************/
-
-/***********************************************************************
- * Private Functions
- ***********************************************************************/
-
-static void
-insn32_GenerateSimple(ubyte opcode);
-static void
-insn32_GenerateDataOperation(ubyte opcode, uint32 data);
-static void
-insn32_Generate(enum pcode_e opcode, uint32 arg);
-
-/***********************************************************************
- * Private Functions
- ***********************************************************************/
-
-/***********************************************************************/
-/* Disassemble an Op-code */
-
-#if CONFIG_DEBUG
-static inline void
-insn32_DisassemblePCode(ubyte opcode, uint32 arg)
-{
- OPTYPE op;
-
- op.op = opcode;
- op.arg = arg;
-
- insn_DisassemblePCode(lstFile, &op);
-}
-#else
-# define insn32_DisassemblePCode(op,a)
-#endif
-
-/***********************************************************************/
-static inline void
-insn32_DisassembleOpcode(ubyte opcode, uint32 data)
-{
-#if CONFIG_DEBUG
- OPTYPE op;
- op.op = opcode;
- op.arg = data;
- insn32_DisassemblePCode(opcode, 0);
-#endif
-}
-
-/***********************************************************************/
-/* Generate an Op-Code */
-
-static void
-insn32_GenerateSimple(ubyte opcode)
-{
- TRACE(lstFile,"[insn32_GenerateSimple:0x%02x]", opcode);
-
- /* Write the 8-bit opcode */
-
- poffAddProgByte(poffHandle, opcode);
-
- /* Now, add the disassembled PCode to the list file. */
-
- insn32_DisassembleOpcode(opcode, 0);
-}
-
-/***********************************************************************/
-
-static void
-insn32_GenerateDataOperation(ubyte opcode, uint32 data)
-{
- union
- {
- ubyte b[4];
- uint32 w;
- } udata;
-
- TRACE(lstFile,"[insn32_GenerateDataOperation:0x%02x:0x%07x]", opcode, data);
-
- /* Write the 8-bit opcode */
-
- poffAddProgByte(poffHandle, opcode);
-
- /* Write the 32-bit opcode */
-
- udata.w = data;
- (void)poffAddProgByte(poffHandle, udata.b[opB1]);
- (void)poffAddProgByte(poffHandle, udata.b[opB2]);
- (void)poffAddProgByte(poffHandle, udata.b[opB3]);
- (void)poffAddProgByte(poffHandle, udata.b[opB4]);
-
- /* Now, add the disassembled PCode to the list file. */
-
- insn32_DisassembleOpcode(opcode, data);
-}
-
-/***********************************************************************/
-
-static void
-insn32_Generate(enum pcode_e opcode, uint32 arg)
-{
- ubyte insn_opcode = opmap[opcode];
-
- TRACE(lstFile,"[insn32_Generate:0x%02x->0x%02x]", opcode, insn_opcode);
-
- if (insn_opcode & o32)
- {
- insn32_GenerateDataOperation(insn_opcode, arg);
- }
- else
- {
- insn32_GenerateSimple(insn_opcode);
-
- /* We ignore the argument... what if one was provided? */
-
- if (arg != 0)
- {
- warn(eARGIGNORED);
- }
- }
-}
-
-/***********************************************************************
- * Public Functions
- ***********************************************************************/
-
-void
-insn_GenerateSimple(enum pcode_e opcode)
-{
- insn32_Generate(opcode, 0);
-}
-
-/***********************************************************************/
-
-void
-insn_GenerateDataOperation(enum pcode_e opcode, sint32 data)
-{
- insn32_Generate(opcode, (uint32)data);
-}
-
-/***********************************************************************/
-/* Data size for the next multiple register operation (in bytes) is
- * retained in the DC register.
- */
-
-void insn_GenerateDataSize(uint32 dwDataSize)
-{
- insn32_GenerateDataOperation(oSDC, dwDataSize);
-}
-
-/***********************************************************************/
-
-void
-insn_GenerateFpOperation(ubyte fpOpcode)
-{
- insn32_GenerateDataOperation(oFLOAT, fpOpcode);
-}
-
-/***********************************************************************/
-
-void
-insn_GenerateIoOperation(uint16 ioOpcode, uint16 fileNumber)
-{
- uint32 arg = (uint32)fileNumber << 16 | (uint32)ioOpcode;
- insn32_GenerateDataOperation(oSYSIO, arg);
-}
-
-/***********************************************************************/
-
-void
-insn_BuiltInFunctionCall(uint16 libOpcode)
-{
- insn32_GenerateDataOperation(oLIB, (uint32)libOpcode);
-}
-
-/***********************************************************************/
-
-void
-insn_GenerateLevelReference(enum pcode_e opcode, uint16 level, sint32 offset)
-{
- /* Note that level is ignored. We used the level set by the
- * preceding call to insn_SetStackLevel().
- */
-
- insn32_Generate(opcode, (uint32)offset);
-}
-
-/***********************************************************************/
-
-void
-insn_GenerateProcedureCall(uint16 level, sint32 offset)
-{
- insn32_GenerateDataOperation(oPCAL, (uint32)offset);
-}
-
-/***********************************************************************/
-
-void
-insn_GenerateLineNumber(uint16 includeNumber, uint32 lineNumber)
-{
- if (includeNumber != g_nCurrentIncludeNumber)
- {
- g_nCurrentIncludeNumber = includeNumber;
- insn32_GenerateDataOperation(oINCLUDE, includeNumber);
- }
- insn32_GenerateDataOperation(oLINE, lineNumber);
-}
-
-/***********************************************************************/
-
-void
-insn_SetStackLevel(uint32 level)
-{
- insn32_GenerateDataOperation(oSLSP, level);
-}
+/********************************************************************** + * pgen.c + * P-Code generation logic + * + * Copyright (C) 2008-2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + **********************************************************************/ + +/********************************************************************** + * Included Files + **********************************************************************/ + +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <errno.h> + +#include "config.h" /* Configuration */ +#include "keywords.h" /* Standard types */ +#include "pdefs.h" /* Common types */ +#include "pofflib.h" /* POFF library definitions */ +#include "podefs.h" /* Logical opcode definitions */ +#include "pedefs.h" /* Error codes */ +#include "pinsn32.h" /* 32-bit target INSN opcode definitions */ +#include "perr.h" /* Error handling logic */ + +#include "pinsn.h" /* (to verify prototypes in this file) */ + +/********************************************************************** + * Definitions + **********************************************************************/ + +#define INVALID_INCLUDE (-1) + +/********************************************************************** + * Global Variables + **********************************************************************/ + +extern poffHandle_t poffHandle; /* Handle to POFF object */ +extern FILE *lstFile; /* LIST file pointer */ +extern int16_t level; /* Static nesting level */ + +/********************************************************************** + * Private Variables + **********************************************************************/ + +static const uint8_t opmap[NUM_OPCODES] = +{ + oNOP, /* opNOP */ + oNEG, /* opNEG */ + oABS, /* opABS */ + oINC, /* opINC */ + oDEC, /* opDEC */ + oNOT, /* opNOT */ + oADD, /* opADD */ + oSUB, /* opSUB */ + oMUL, /* opMUL */ + oDIV, /* opDIV */ + oMOD, /* opMOD */ + oSLL, /* opSLL */ + oSRL, /* opSRL */ + oSRA, /* opSRA */ + oOR, /* opOR */ + oAND, /* opAND */ + oEQUZ, /* opEQUZ */ + oNEQZ, /* opNEQZ */ + oLTZ, /* opLTZ */ + oGTEZ, /* opGTEZ */ + oGTZ, /* opGTZ */ + oLTEZ, /* opLTEZ */ + oEQU, /* opEQU */ + oNEQ, /* opNEQ */ + oLT, /* opLT */ + oGTE, /* opGTE */ + oGT, /* opGT */ + oLTE, /* opLTE */ + oBIT, /* opBIT */ + oLDI, /* opLDI */ + oLDIB, /* opLDIB */ + oLDIM, /* opLDIM */ + oSTI, /* opSTI */ + oSTIB, /* opSTIB */ + oSTIM, /* opSTIM */ + oDUP, /* opDUP */ + oPUSHS, /* opPUSHS */ + oPOPS, /* opPOPS */ + oRET, /* opRET */ + oEND, /* opEND */ + oFLOAT, /* opFLOAT */ + oJEQUZ, /* opJEQUZ */ + oJNEQZ, /* opJNEQZ */ + oJMP, /* opJMP */ + oJEQU, /* opJEQU */ + oJNEQ, /* opJNEQ */ + oJLT, /* opJLT */ + oJGTE, /* opJGTE */ + oJGT, /* opJGT */ + oJLTE, /* opJLTE */ + oLD, /* opLD */ + oLDH, /* opLDH */ + oLDB, /* opLDB */ + oLDM, /* opLDM */ + oST, /* opST */ + oSTB, /* opSTB */ + oSTM, /* opSTM */ + oLDX, /* opLDX */ + oLDXB, /* opLDXB */ + oLDXM, /* opLDXM */ + oSTX, /* opSTX */ + oSTXB, /* opSTXB */ + oSTXM, /* opSTXM */ + oLA, /* opLA */ + oLAC, /* opLAC */ + oPUSH, /* opPUSH */ + oINDS, /* opINDS */ + oLAX, /* opLAX */ + oLIB, /* opLIB */ + oLABEL, /* opLABEL */ + oPCAL, /* opPCAL */ + oLDS, /* opLDS */ + oLDSH, /* opLDSH */ + oLDSB, /* opLDSB */ + oLDSM, /* opLDSM */ + oSTS, /* opSTS */ + oSTSB, /* opSTSB */ + oSTSM, /* opSTSM */ + oLDSX, /* opLDSX */ + oLDSXB, /* opLDSXB */ + oLDSXM, /* opLDSXM */ + oSTSX, /* opSTSX */ + oSTSXB, /* opSTSXB */ + oSTSXM, /* opSTSXM */ + oLAS, /* opLAS */ + oLASX, /* opLASX */ + oSYSIO, /* opSYSIO */ + oLINE, /* opLINE */ +}; + +static uint16_t g_nCurrentIncludeNumber = INVALID_INCLUDE; + +/*********************************************************************** + * Private Function Prototypes + ***********************************************************************/ + +/*********************************************************************** + * Private Functions + ***********************************************************************/ + +static void +insn32_GenerateSimple(uint8_t opcode); +static void +insn32_GenerateDataOperation(uint8_t opcode, uint32_t data); +static void +insn32_Generate(enum pcode_e opcode, uint32_t arg); + +/*********************************************************************** + * Private Functions + ***********************************************************************/ + +/***********************************************************************/ +/* Disassemble an Op-code */ + +#if CONFIG_DEBUG +static inline void +insn32_DisassemblePCode(uint8_t opcode, uint32_t arg) +{ + OPTYPE op; + + op.op = opcode; + op.arg = arg; + + insn_DisassemblePCode(lstFile, &op); +} +#else +# define insn32_DisassemblePCode(op,a) +#endif + +/***********************************************************************/ +static inline void +insn32_DisassembleOpcode(uint8_t opcode, uint32_t data) +{ +#if CONFIG_DEBUG + OPTYPE op; + op.op = opcode; + op.arg = data; + insn32_DisassemblePCode(opcode, 0); +#endif +} + +/***********************************************************************/ +/* Generate an Op-Code */ + +static void +insn32_GenerateSimple(uint8_t opcode) +{ + TRACE(lstFile,"[insn32_GenerateSimple:0x%02x]", opcode); + + /* Write the 8-bit opcode */ + + poffAddProgByte(poffHandle, opcode); + + /* Now, add the disassembled PCode to the list file. */ + + insn32_DisassembleOpcode(opcode, 0); +} + +/***********************************************************************/ + +static void +insn32_GenerateDataOperation(uint8_t opcode, uint32_t data) +{ + union + { + uint8_t b[4]; + uint32_t w; + } udata; + + TRACE(lstFile,"[insn32_GenerateDataOperation:0x%02x:0x%07x]", opcode, data); + + /* Write the 8-bit opcode */ + + poffAddProgByte(poffHandle, opcode); + + /* Write the 32-bit opcode */ + + udata.w = data; + (void)poffAddProgByte(poffHandle, udata.b[opB1]); + (void)poffAddProgByte(poffHandle, udata.b[opB2]); + (void)poffAddProgByte(poffHandle, udata.b[opB3]); + (void)poffAddProgByte(poffHandle, udata.b[opB4]); + + /* Now, add the disassembled PCode to the list file. */ + + insn32_DisassembleOpcode(opcode, data); +} + +/***********************************************************************/ + +static void +insn32_Generate(enum pcode_e opcode, uint32_t arg) +{ + uint8_t insn_opcode = opmap[opcode]; + + TRACE(lstFile,"[insn32_Generate:0x%02x->0x%02x]", opcode, insn_opcode); + + if (insn_opcode & o32) + { + insn32_GenerateDataOperation(insn_opcode, arg); + } + else + { + insn32_GenerateSimple(insn_opcode); + + /* We ignore the argument... what if one was provided? */ + + if (arg != 0) + { + warn(eARGIGNORED); + } + } +} + +/*********************************************************************** + * Public Functions + ***********************************************************************/ + +void +insn_GenerateSimple(enum pcode_e opcode) +{ + insn32_Generate(opcode, 0); +} + +/***********************************************************************/ + +void +insn_GenerateDataOperation(enum pcode_e opcode, int32_t data) +{ + insn32_Generate(opcode, (uint32_t)data); +} + +/***********************************************************************/ +/* Data size for the next multiple register operation (in bytes) is + * retained in the DC register. + */ + +void insn_GenerateDataSize(uint32_t dwDataSize) +{ + insn32_GenerateDataOperation(oSDC, dwDataSize); +} + +/***********************************************************************/ + +void +insn_GenerateFpOperation(uint8_t fpOpcode) +{ + insn32_GenerateDataOperation(oFLOAT, fpOpcode); +} + +/***********************************************************************/ + +void +insn_GenerateIoOperation(uint16_t ioOpcode, uint16_t fileNumber) +{ + uint32_t arg = (uint32_t)fileNumber << 16 | (uint32_t)ioOpcode; + insn32_GenerateDataOperation(oSYSIO, arg); +} + +/***********************************************************************/ + +void +insn_BuiltInFunctionCall(uint16_t libOpcode) +{ + insn32_GenerateDataOperation(oLIB, (uint32_t)libOpcode); +} + +/***********************************************************************/ + +void +insn_GenerateLevelReference(enum pcode_e opcode, uint16_t level, int32_t offset) +{ + /* Note that level is ignored. We used the level set by the + * preceding call to insn_SetStackLevel(). + */ + + insn32_Generate(opcode, (uint32_t)offset); +} + +/***********************************************************************/ + +void +insn_GenerateProcedureCall(uint16_t level, int32_t offset) +{ + insn32_GenerateDataOperation(oPCAL, (uint32_t)offset); +} + +/***********************************************************************/ + +void +insn_GenerateLineNumber(uint16_t includeNumber, uint32_t lineNumber) +{ + if (includeNumber != g_nCurrentIncludeNumber) + { + g_nCurrentIncludeNumber = includeNumber; + insn32_GenerateDataOperation(oINCLUDE, includeNumber); + } + insn32_GenerateDataOperation(oLINE, lineNumber); +} + +/***********************************************************************/ + +void +insn_SetStackLevel(uint32_t level) +{ + insn32_GenerateDataOperation(oSLSP, level); +} |