From d3113b53c184112a087c612d12b2661ccca65ac1 Mon Sep 17 00:00:00 2001 From: patacongo Date: Sat, 5 Jan 2008 15:36:01 +0000 Subject: P-code library git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@495 42af7a65-404d-4744-a932-0658087f49c3 --- misc/pascal/insn16/libinsn/paddopcode.c | 100 +++++ misc/pascal/insn16/libinsn/paddtmpopcode.c | 100 +++++ misc/pascal/insn16/libinsn/pdasm.c | 562 +++++++++++++++++++++++++++++ misc/pascal/insn16/libinsn/pgen.c | 312 ++++++++++++++++ misc/pascal/insn16/libinsn/pgetopcode.c | 138 +++++++ misc/pascal/insn16/libinsn/preloc.c | 147 ++++++++ 6 files changed, 1359 insertions(+) create mode 100644 misc/pascal/insn16/libinsn/paddopcode.c create mode 100644 misc/pascal/insn16/libinsn/paddtmpopcode.c create mode 100644 misc/pascal/insn16/libinsn/pdasm.c create mode 100644 misc/pascal/insn16/libinsn/pgen.c create mode 100644 misc/pascal/insn16/libinsn/pgetopcode.c create mode 100644 misc/pascal/insn16/libinsn/preloc.c (limited to 'misc/pascal') diff --git a/misc/pascal/insn16/libinsn/paddopcode.c b/misc/pascal/insn16/libinsn/paddopcode.c new file mode 100644 index 000000000..2f4a7bc0a --- /dev/null +++ b/misc/pascal/insn16/libinsn/paddopcode.c @@ -0,0 +1,100 @@ +/********************************************************************** + * paddopcode + * P-Code access utilities + * + * Copyright (C) 2008 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 "keywords.h" +#include "podefs.h" +#include "pinsn16.h" + +#include "paslib.h" +#include "pofflib.h" +#include "pinsn.h" + +/********************************************************************** + * Private Function Prototypes + **********************************************************************/ + +/********************************************************************** + * Global Variables + **********************************************************************/ + +/********************************************************************** + * Private Variables + **********************************************************************/ + +/********************************************************************** + * Private Functions + **********************************************************************/ + +/********************************************************************** + * Global Functions + **********************************************************************/ + +/**********************************************************************/ + +void insn_AddOpCode(poffHandle_t handle, OPTYPE *ptr) +{ + /* Write the opcode which is always present */ + + (void)poffAddProgByte(handle, ptr->op); + + /* Write the 8-bit argument if present */ + + if (ptr->op & o8) + { + (void)poffAddProgByte(handle, ptr->arg1); + } + + /* Write the 16-bit argument if present */ + + if (ptr->op & o16) + { + (void)poffAddProgByte(handle, (ptr->arg2 >> 8)); + (void)poffAddProgByte(handle, (ptr->arg2 & 0xff)); + } +} + +/**********************************************************************/ + +void insn_ResetOpCodeWrite(poffHandle_t handle) +{ + poffResetAccess(handle); +} + +/***********************************************************************/ diff --git a/misc/pascal/insn16/libinsn/paddtmpopcode.c b/misc/pascal/insn16/libinsn/paddtmpopcode.c new file mode 100644 index 000000000..426f69d7e --- /dev/null +++ b/misc/pascal/insn16/libinsn/paddtmpopcode.c @@ -0,0 +1,100 @@ +/********************************************************************** + * paddtmpopcode + * P-Code access utilities + * + * Copyright (C) 2008 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 "keywords.h" +#include "podefs.h" +#include "pinsn16.h" + +#include "paslib.h" +#include "pofflib.h" +#include "pinsn.h" + +/********************************************************************** + * Private Function Prototypes + **********************************************************************/ + +/********************************************************************** + * Global Variables + **********************************************************************/ + +/********************************************************************** + * Private Variables + **********************************************************************/ + +/********************************************************************** + * Private Functions + **********************************************************************/ + +/********************************************************************** + * Global Functions + **********************************************************************/ + +/**********************************************************************/ + +void insn_AddTmpOpCode(poffProgHandle_t progHandle, OPTYPE *ptr) +{ + /* Write the opcode which is always present */ + + (void)poffAddTmpProgByte(progHandle, ptr->op); + + /* Write the 8-bit argument if present */ + + if (ptr->op & o8) + { + (void)poffAddTmpProgByte(progHandle, ptr->arg1); + } + + /* Write the 16-bit argument if present */ + + if (ptr->op & o16) + { + (void)poffAddTmpProgByte(progHandle, (ptr->arg2 >> 8)); + (void)poffAddTmpProgByte(progHandle, (ptr->arg2 & 0xff)); + } +} + +/**********************************************************************/ + +void insn_ResetTmpOpCodeWrite(poffProgHandle_t progHandle) +{ + poffResetProgHandle(progHandle); +} + +/***********************************************************************/ diff --git a/misc/pascal/insn16/libinsn/pdasm.c b/misc/pascal/insn16/libinsn/pdasm.c new file mode 100644 index 000000000..9ee8f4b63 --- /dev/null +++ b/misc/pascal/insn16/libinsn/pdasm.c @@ -0,0 +1,562 @@ +/********************************************************************** + * pdasm.c + * P-Code Disassembler + * + * Copyright (C) 2008 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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. + * + **********************************************************************/ + +#include + +#include "keywords.h" +#include "podefs.h" +#include "pinsn16.h" +#include "pfdefs.h" +#include "pxdefs.h" +#include "paslib.h" + +#include "pinsn.h" + +/***********************************************************************/ + +/* These are all the format codes that apply to opcodes the an arg16 */ + +#define NOARG16 0 +#define HEX 1 +#define DECIMAL 2 +#define UDECIMAL 3 +#define LABEL_DEC 4 +#define xOP 5 +#define lbOP 6 +#define fpOP 7 +#define COMMENT 8 + +/* The following table defines everything that is needed to disassemble + * a P-Code. NOTE: The order of definition in this table must exactly + * match the declaration sequence in pinsn.h. */ + +static const char invOp[] = "Invalid Opcode"; +static const struct +{ + const char *opName; /* Opcode mnemonics */ + ubyte format; /* arg16 format */ +} opTable[256] = +{ + +/******************* OPCODES WITH NO ARGUMENTS ************************/ +/* Program control (No stack arguments) */ + +/* 0x00 */ { "NOP ", NOARG16 }, + +/* Arithmetic & logical & and integer conversions (One stack argument) */ + +/* 0x01 */ { "NEG ", NOARG16 }, +/* 0x02 */ { "ABS ", NOARG16 }, +/* 0x03 */ { "INC ", NOARG16 }, +/* 0x04 */ { "DEC ", NOARG16 }, +/* 0x05 */ { "NOT ", NOARG16 }, + +/* Arithmetic & logical (Two stack arguments) */ + +/* 0x06 */ { "ADD ", NOARG16 }, +/* 0x07 */ { "SUB ", NOARG16 }, +/* 0x08 */ { "MUL ", NOARG16 }, +/* 0x09 */ { "DIV ", NOARG16 }, +/* 0x0a */ { "MOD ", NOARG16 }, +/* 0x0b */ { "SLL ", NOARG16 }, +/* 0x0c */ { "SRL ", NOARG16 }, +/* 0x0d */ { "SRA ", NOARG16 }, +/* 0x0e */ { "OR ", NOARG16 }, +/* 0x0f */ { "AND ", NOARG16 }, + +/* Comparisons (One stack argument) */ + +/* 0x10 */ { "EQUZ ", NOARG16 }, +/* 0x11 */ { "NEQZ ", NOARG16 }, +/* 0x12 */ { "LTZ ", NOARG16 }, +/* 0x13 */ { "GTEZ ", NOARG16 }, +/* 0x14 */ { "GTZ ", NOARG16 }, +/* 0x15 */ { "LTEZ ", NOARG16 }, +/* 0x16 */ { invOp, NOARG16 }, +/* 0x17 */ { invOp, NOARG16 }, + +/* Comparisons (Two stack arguments) */ + +/* 0x18 */ { "EQU ", NOARG16 }, +/* 0x19 */ { "NEQ ", NOARG16 }, +/* 0x1a */ { "LT ", NOARG16 }, +/* 0x1b */ { "GTE ", NOARG16 }, +/* 0x1c */ { "GT ", NOARG16 }, +/* 0x1d */ { "LTE ", NOARG16 }, +/* 0x1e */ { invOp, NOARG16 }, +/* 0x1f */ { "BIT ", NOARG16 }, + +/* Load (One) or Store (Two stack argument) */ + +/* 0x20 */ { "LDI ", NOARG16 }, +/* 0x21 */ { "LDIH", NOARG16 }, +/* 0x22 */ { "LDIB", NOARG16 }, +/* 0x23 */ { "LDIM", NOARG16 }, +/* 0x24 */ { "STI ", NOARG16 }, +/* 0x25 */ { "STIH", NOARG16 }, +/* 0x26 */ { "STIB", NOARG16 }, +/* 0x27 */ { "STIM", NOARG16 }, + +/* Data stack operations */ + +/* 0x29 */ { "DUP ", NOARG16 }, +/* 0x29 */ { "DUPH ", NOARG16 }, +/* 0x2a */ { "PUSHS", NOARG16 }, +/* 0x2b */ { "POPS", NOARG16 }, +/* 0x2c */ { invOp, NOARG16 }, +/* 0x2d */ { invOp, NOARG16 }, +/* 0x2e */ { invOp, NOARG16 }, +/* 0x2f */ { "RET ", NOARG16 }, + +/* 0x30 */ { invOp, NOARG16 }, +/* 0x31 */ { invOp, NOARG16 }, +/* 0x32 */ { invOp, NOARG16 }, +/* 0x33 */ { invOp, NOARG16 }, +/* 0x34 */ { invOp, NOARG16 }, +/* 0x35 */ { invOp, NOARG16 }, +/* 0x36 */ { invOp, NOARG16 }, +/* 0x37 */ { invOp, NOARG16 }, +/* 0x38 */ { invOp, NOARG16 }, + +/* System Functions (No stack arguments) */ + +/* 0x39 */ { invOp, NOARG16 }, +/* 0x3a */ { invOp, NOARG16 }, +/* 0x3b */ { invOp, NOARG16 }, +/* 0x3c */ { invOp, NOARG16 }, +/* 0x3d */ { invOp, NOARG16 }, +/* 0x3e */ { invOp, NOARG16 }, +/* 0x3f */ { "EXIT ", NOARG16 }, + +/************** OPCODES WITH SINGLE BYTE ARGUMENT (arg8) ***************/ + +/* 0x40 */ { invOp, NOARG16 }, +/* 0x41 */ { invOp, NOARG16 }, +/* 0x42 */ { invOp, NOARG16 }, +/* 0x43 */ { invOp, NOARG16 }, +/* 0x44 */ { invOp, NOARG16 }, +/* 0x45 */ { invOp, NOARG16 }, +/* 0x46 */ { invOp, NOARG16 }, +/* 0x47 */ { invOp, NOARG16 }, +/* 0x48 */ { invOp, NOARG16 }, +/* 0x49 */ { invOp, NOARG16 }, +/* 0x4a */ { invOp, NOARG16 }, +/* 0x4b */ { invOp, NOARG16 }, +/* 0x4c */ { invOp, NOARG16 }, +/* 0x4d */ { invOp, NOARG16 }, +/* 0x4e */ { invOp, NOARG16 }, +/* 0x4f */ { invOp, NOARG16 }, + +/* 0x50 */ { invOp, NOARG16 }, +/* 0x51 */ { invOp, NOARG16 }, +/* 0x52 */ { invOp, NOARG16 }, +/* 0x53 */ { invOp, NOARG16 }, +/* 0x54 */ { invOp, NOARG16 }, +/* 0x55 */ { invOp, NOARG16 }, +/* 0x56 */ { invOp, NOARG16 }, +/* 0x57 */ { invOp, NOARG16 }, +/* 0x58 */ { invOp, NOARG16 }, +/* 0x59 */ { invOp, NOARG16 }, +/* 0x5a */ { invOp, NOARG16 }, +/* 0x5b */ { invOp, NOARG16 }, +/* 0x5c */ { invOp, NOARG16 }, +/* 0x5d */ { invOp, NOARG16 }, +/* 0x5e */ { invOp, NOARG16 }, +/* 0x5f */ { invOp, NOARG16 }, + +/* Data stack: arg8 = 8 bit unsigned data (no stack arguments) */ + +/* 0x60 */ { invOp, NOARG16 }, +/* 0x61 */ { invOp, NOARG16 }, +/* 0x62 */ { invOp, NOARG16 }, +/* 0x63 */ { invOp, NOARG16 }, +/* 0x64 */ { invOp, NOARG16 }, +/* 0x65 */ { invOp, NOARG16 }, +/* 0x66 */ { invOp, NOARG16 }, +/* 0x67 */ { invOp, NOARG16 }, +/* 0x68 */ { invOp, NOARG16 }, +/* 0x69 */ { invOp, NOARG16 }, +/* 0x6a */ { invOp, NOARG16 }, +/* 0x6b */ { invOp, NOARG16 }, +/* 0x6c */ { invOp, NOARG16 }, +/* 0x6d */ { invOp, NOARG16 }, +/* 0x6e */ { invOp, NOARG16 }, +/* 0x6f */ { invOp, NOARG16 }, + +/* Floating Point Operations: arg8 = FP op-code */ + +/* 0x70 */ { "FLOAT", fpOP }, +/* 0x71 */ { invOp, NOARG16 }, +/* 0x72 */ { invOp, NOARG16 }, +/* 0x73 */ { invOp, NOARG16 }, +/* 0x74 */ { "PUSHB", NOARG16 }, +/* 0x75 */ { invOp, NOARG16 }, +/* 0x76 */ { invOp, NOARG16 }, +/* 0x77 */ { invOp, NOARG16 }, + +/* 0x78 */ { invOp, NOARG16 }, +/* 0x79 */ { invOp, NOARG16 }, +/* 0x7a */ { invOp, NOARG16 }, +/* 0x7b */ { invOp, NOARG16 }, +/* 0x7c */ { invOp, NOARG16 }, +/* 0x7d */ { invOp, NOARG16 }, +/* 0x7e */ { invOp, NOARG16 }, +/* 0x7f */ { invOp, NOARG16 }, + +/************ OPCODES WITH SINGLE 16-BIT ARGUMENT (arg16) ************/ + +/* 0x80 */ { invOp, NOARG16 }, +/* 0x81 */ { invOp, NOARG16 }, +/* 0x82 */ { invOp, NOARG16 }, +/* 0x83 */ { invOp, NOARG16 }, +/* 0x84 */ { invOp, NOARG16 }, +/* 0x85 */ { invOp, NOARG16 }, +/* 0x86 */ { invOp, NOARG16 }, +/* 0x87 */ { invOp, NOARG16 }, +/* 0x88 */ { invOp, NOARG16 }, +/* 0x89 */ { invOp, NOARG16 }, +/* 0x8a */ { invOp, NOARG16 }, +/* 0x8b */ { invOp, NOARG16 }, +/* 0x8c */ { invOp, NOARG16 }, +/* 0x8d */ { invOp, NOARG16 }, +/* 0x8e */ { invOp, NOARG16 }, +/* 0x8f */ { invOp, NOARG16 }, + +/* Program control: arg16 = unsigned label (One stack argument) */ + +/* 0x90 */ { "JEQUZ", HEX }, +/* 0x91 */ { "JNEQZ", HEX }, +/* 0x92 */ { "JLTZ ", HEX }, +/* 0x93 */ { "JGTEZ", HEX }, +/* 0x94 */ { "JGTZ ", HEX }, +/* 0x95 */ { "JLTEZ", HEX }, + +/* Program control: arg16 = unsigned label (no stack arguments) */ + +/* 0x96 */ { "JMP ", HEX }, +/* 0x97 */ { invOp, NOARG16 }, + +/* Program control: arg16 = unsigned label (One stack argument) */ + +/* 0x98 */ { "JEQU ", HEX }, +/* 0x99 */ { "JNEQ ", HEX }, +/* 0x9a */ { "JLT ", HEX }, +/* 0x9b */ { "JGTE ", HEX }, +/* 0x9c */ { "JGT ", HEX }, +/* 0x9d */ { "JLTE ", HEX }, +/* 0x9e */ { invOp, NOARG16 }, +/* 0x9f */ { invOp, NOARG16 }, + +/* Data stack: arg16 = 16 bit signed data (no stack arguments) */ + +/* Load: arg16 = unsigned base offset (no stack arguments) */ + +/* 0xa0 */ { "LD ", UDECIMAL }, +/* 0xa1 */ { "LDH ", UDECIMAL }, +/* 0xa2 */ { "LDB ", UDECIMAL }, +/* 0xa3 */ { "LDM ", UDECIMAL }, + +/* Store: arg16 = unsigned base offset (One stack arguments) */ + +/* 0xa4 */ { "ST ", UDECIMAL }, +/* 0xa5 */ { "STH ", UDECIMAL }, +/* 0xa6 */ { "STB ", UDECIMAL }, +/* 0xa7 */ { "STM ", UDECIMAL }, + +/* Load Indexed: arg16 = unsigned base offset (One stack arguments) */ + +/* 0xa8 */ { "LDX ", UDECIMAL }, +/* 0xa9 */ { "LDXH ", UDECIMAL }, +/* 0xaa */ { "LDXB ", UDECIMAL }, +/* 0xab */ { "LDXM ", UDECIMAL }, + +/* Store Indexed: arg16 = unsigned base offset (Two stack arguments) */ + +/* 0xac */ { "STX ", UDECIMAL }, +/* 0xad */ { "STXH ", UDECIMAL }, +/* 0xae */ { "STXB ", UDECIMAL }, +/* 0xaf */ { "STXM ", UDECIMAL }, + +/* 0xb0 */ { "LA ", UDECIMAL }, +/* 0xb1 */ { "LAC ", HEX, }, +/* 0xb2 */ { invOp, NOARG16 }, +/* 0xb3 */ { invOp, NOARG16 }, +/* 0xb4 */ { "PUSH ", DECIMAL }, +/* 0xb5 */ { "INDS ", DECIMAL }, +/* 0xb6 */ { invOp, NOARG16 }, +/* 0xb7 */ { invOp, NOARG16 }, +/* 0xb8 */ { "LAX ", UDECIMAL }, + +/* System operations: arg16 = 16-bit library function identifer */ + +/* 0xb9 */ { "LIB ", lbOP, }, +/* 0xba */ { invOp, NOARG16 }, +/* 0xbb */ { invOp, NOARG16 }, +/* 0xbc */ { invOp, NOARG16 }, +/* 0xbd */ { invOp, NOARG16 }, +/* 0xbe */ { invOp, NOARG16 }, + +/* Program control: arg16 = unsigned label (no stack arguments) */ + +/* 0xbf */ { "LABEL", LABEL_DEC }, + +/**** OPCODES WITH BYTE ARGUMENT (arg8) AND 16-BIT ARGUMENT (arg16) ****/ + +/* 0xc0 */ { invOp, NOARG16 }, +/* 0xc1 */ { invOp, NOARG16 }, +/* 0xc2 */ { invOp, NOARG16 }, +/* 0xc3 */ { invOp, NOARG16 }, +/* 0xc4 */ { invOp, NOARG16 }, +/* 0xc5 */ { invOp, NOARG16 }, +/* 0xc6 */ { invOp, NOARG16 }, +/* 0xc7 */ { invOp, NOARG16 }, + +/* Program Control: arg8 = level; arg16 = unsigned label (No stack + * arguments */ + +/* 0xc8 */ { "PCAL ", HEX }, +/* 0xc9 */ { invOp, NOARG16 }, +/* 0xca */ { invOp, NOARG16 }, +/* 0xcb */ { invOp, NOARG16 }, +/* 0xcc */ { invOp, NOARG16 }, +/* 0xcd */ { invOp, NOARG16 }, +/* 0xce */ { invOp, NOARG16 }, +/* 0xcf */ { invOp, NOARG16 }, + +/* 0xd0 */ { invOp, NOARG16 }, +/* 0xd1 */ { invOp, NOARG16 }, +/* 0xd2 */ { invOp, NOARG16 }, +/* 0xd3 */ { invOp, NOARG16 }, +/* 0xd4 */ { invOp, NOARG16 }, +/* 0xd5 */ { invOp, NOARG16 }, +/* 0xd6 */ { invOp, NOARG16 }, +/* 0xd7 */ { invOp, NOARG16 }, +/* 0xd8 */ { invOp, NOARG16 }, +/* 0xd9 */ { invOp, NOARG16 }, +/* 0xda */ { invOp, NOARG16 }, +/* 0xdb */ { invOp, NOARG16 }, +/* 0xdc */ { invOp, NOARG16 }, +/* 0xdd */ { invOp, NOARG16 }, +/* 0xde */ { invOp, NOARG16 }, +/* 0xdf */ { invOp, NOARG16 }, + +/* Load: arg8 = level; arg16 = signed frame offset (no stack arguments) */ + +/* 0xe0 */ { "LDS ", DECIMAL }, +/* 0xe1 */ { "LDSH ", DECIMAL }, +/* 0xe2 */ { "LDSB ", DECIMAL }, +/* 0xe3 */ { "LDSM ", DECIMAL }, + +/* Store: arg8 = level; arg16 = signed frame offset (One stack arguments) */ + +/* 0xe4 */ { "STS ", DECIMAL }, +/* 0xe5 */ { "STSH ", DECIMAL }, +/* 0xe6 */ { "STSB ", DECIMAL }, +/* 0xe7 */ { "STSM ", DECIMAL }, + +/* Load Indexed: arg8 = level; arg16 = signed frame offset (One stack arguments) */ + +/* 0xe8 */ { "LDSX ", DECIMAL }, +/* 0xe9 */ { "LDSXH", DECIMAL }, +/* 0xea */ { "LDSXB", DECIMAL }, +/* 0xeb */ { "LDSXM", DECIMAL }, + +/* Store Indexed: arg8 = level; arg16 = signed frame offset (Two stack arguments) */ + +/* 0xec */ { "STSX ", DECIMAL }, +/* 0xed */ { "STSXH", DECIMAL }, +/* 0xee */ { "STSXB", DECIMAL }, +/* 0xef */ { "STSXM", DECIMAL }, + +/* Load Address: arg8 = level; arg16 = signed frame offset (no stack arguments) */ + +/* 0xf0 */ { "LAS ", DECIMAL }, +/* 0xf1 */ { invOp, NOARG16 }, +/* 0xf2 */ { invOp, NOARG16 }, +/* 0xf3 */ { invOp, NOARG16 }, +/* 0xf4 */ { invOp, NOARG16 }, +/* 0xf5 */ { invOp, NOARG16 }, +/* 0xf6 */ { invOp, NOARG16 }, +/* 0xf7 */ { invOp, NOARG16 }, +/* 0xf8 */ { "LASX ", DECIMAL }, + +/* System Functions: (No stack arguments) + * For SYSIO: arg8 = file number; arg16 = sub-function code + */ + +/* 0xf9 */ { "SYSIO", xOP, }, +/* 0xfa */ { invOp, NOARG16 }, +/* 0xfb */ { invOp, NOARG16 }, +/* 0xfc */ { invOp, NOARG16 }, +/* 0xfd */ { invOp, NOARG16 }, +/* 0xfe */ { invOp, NOARG16 }, + +/* Psuedo-operations: + * For LINE: arg8 = file number; arg16 = line number + */ + +/* 0xff */ { "LINE ", COMMENT }, +}; + +static const char invXOp[] = "Invalid SYSIO"; +static const char *xName[MAX_XOP] = { /* SYSIO opcode mnemonics */ +/* 0x00 */ invXOp, "EOF", "EOLN", "RESET", +/* 0x04 */ "REWRITE", invXOp, invXOp, invXOp, +/* 0x08 */ invXOp, invXOp, invXOp, invXOp, +/* 0x0c */ invXOp, invXOp, invXOp, invXOp, +/* 0x10 */ "READLN", "READPG", "READBIN", "READINT", +/* 0x14 */ "READCHR", "READSTR", "READRL", invXOp, +/* 0x18 */ invXOp, invXOp, invXOp, invXOp, +/* 0x1c */ invXOp, invXOp, invXOp, invXOp, +/* 0x20 */ "WRITELN", "WRITEPG", "WRITEBIN", "WRITEINT", +/* 0x24 */ "WRITECHR", "WRITESTR", "WRITERL" }; + +static const char invLbOp[] = "Invalid runtime code"; +static const char *lbName[MAX_LBOP] = { /* LIB opcode mnemonics */ +/* 0x00 */ "GETENV", "STR2STR", "CSTR2STR", "STR2RSTR", +/* 0x04 */ "CSTR2RSTR", "VAL", "MKSTK", "MKSTKSTR", +/* 0x08 */ "MKSTKC", "STRCAT", "STRCATC", "STRCMP" }; + +static const char invFpOp[] = "Invalid FP Operation"; +static const char *fpName[MAX_FOP] = { +/* 0x00 */ invFpOp, "FLOAT", "TRUNC", "ROUND", +/* 0x04 */ "ADD", "SUB", "MUL", "DIV", +/* 0x08 */ "MOD", invFpOp, "EQU", "NEQ", +/* 0x0c */ "LT", "GTE", "GT", "LTE", +/* 0x10 */ "NEG", "ABS", "SQR", "SQRT", +/* 0x14 */ "SIN", "COS", "ATAN", "LN", +/* 0x18 */ "EXP" }; + +/***********************************************************************/ + +void insn_DisassemblePCode(FILE* lfile, OPTYPE *pop) +{ + /* Indent, comment or label */ + + switch (opTable[pop->op].format) + { + case LABEL_DEC : + fprintf(lfile, "L%04x: ", pop->arg2); + break; + case COMMENT : + fprintf(lfile, "; "); + break; + default : + fprintf(lfile, " "); + } /* end switch */ + + /* Special Case Comment line format */ + + if (opTable[pop->op].format == COMMENT) + { + fprintf(lfile, "%s ", opTable[pop->op].opName); + if (pop->op & o8) + { + fprintf(lfile, "%d", pop->arg1); + if (pop->op & o16) + fprintf(lfile, ":%d", pop->arg2); + } /* end if */ + else if (pop->op & o16) + fprintf(lfile, "%d", pop->arg2); + } /* end if */ + + /* Print normal opCode mnemonic */ + + else + { + fprintf(lfile, "%s ", opTable[pop->op].opName); + + /* Print pop->arg1 (if present) */ + + if (pop->op & o8) fprintf(lfile, "%d", pop->arg1); + + /* Print ar16 (if present) */ + + if (pop->op & o16) + { + switch (opTable[pop->op].format) + { + case HEX : + if (pop->op & o8) fprintf(lfile, ", "); + fprintf(lfile, "0x%04x", pop->arg2); + break; + + case COMMENT : + case DECIMAL : + if (pop->op & o8) fprintf(lfile, ", "); + fprintf(lfile, "%ld", signExtend16(pop->arg2)); + break; + + case UDECIMAL : + if (pop->op & o8) fprintf(lfile, ", "); + fprintf(lfile, "%u", pop->arg2); + break; + + case fpOP : + if ((pop->arg1 & fpMASK) < MAX_FOP) + fprintf(lfile, " %s", fpName[(pop->arg1 & 0x3f)]); + else + fprintf(lfile, " %s", invFpOp); + break; + + case xOP : + if (pop->arg2 < MAX_XOP) + fprintf(lfile, ", %s", xName[pop->arg2]); + else + fprintf(lfile, ", %s", invXOp); + break; + + case lbOP : + if (pop->arg2 < MAX_LBOP) + fprintf(lfile, "%s", lbName[pop->arg2]); + else + fprintf(lfile, "%s", invLbOp); + break; + + case LABEL_DEC : + default : + break; + } /* end switch */ + } /* end if */ + } /* end else */ + + /* Don't forget the newline! */ + + fputc('\n', lfile); + +} /* end dissassemblePcode */ + +/***********************************************************************/ diff --git a/misc/pascal/insn16/libinsn/pgen.c b/misc/pascal/insn16/libinsn/pgen.c new file mode 100644 index 000000000..4be58e108 --- /dev/null +++ b/misc/pascal/insn16/libinsn/pgen.c @@ -0,0 +1,312 @@ +/********************************************************************** + * pgen.c + * P-Code generation logic + * + * Copyright (C) 2008 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 +#include +#include + +#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 "pinsn16.h" /* 16-bit target INSN opcode definitions */ +#include "perr.h" /* Error handling logic */ + +#include "pinsn.h" /* (to verify prototypes in this file) */ + +/********************************************************************** + * Definitions + **********************************************************************/ + +/********************************************************************** + * Global Variables + **********************************************************************/ + +/* See pas.h */ +extern poffHandle_t poffHandle; /* Handle to POFF object */ +extern FILE *lstFile; /* LIST file pointer */ +extern sint16 level; /* Static nesting level */ + +/********************************************************************** + * Private Variables + **********************************************************************/ + +static const uint16 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 */ + oLDIH, /* opLDI -- integer load maps to 16-bit load */ + oLDIB, /* opLDIB */ + oLDIM, /* opLDIM */ + oSTIH, /* opSTI - integer store maps to 16-bit store */ + oSTIB, /* opSTIB */ + oSTIM, /* opSTIM */ + oDUPH, /* opDUP -- integer duplicate maps to 16-bit duplicate */ + 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 */ + oLDH, /* opLD -- integer load maps to 16-bit load */ + oLDH, /* opLDH */ + oLDB, /* opLDB */ + oLDM, /* opLDM */ + oSTH, /* opST -- integer store maps to 16-bit store */ + oSTB, /* opSTB */ + oSTM, /* opSTM */ + oLDXH, /* opLDX -- integer load maps to 16-bit load */ + oLDXB, /* opLDXB */ + oLDXM, /* opLDXM */ + oSTXH, /* opSTX -- integer store maps to 16-bit store */ + oSTXB, /* opSTXB */ + oSTXM, /* opSTXM */ + oLA, /* opLA */ + oLAC, /* opLAC */ + oPUSH, /* opPUSH */ + oINDS, /* opINDS */ + oLAX, /* opLAX */ + oLIB, /* opLIB */ + oLABEL, /* opLABEL */ + oPCAL, /* opPCAL */ + oLDSH, /* opLDS -- integer store maps to 16-bit load */ + oLDSH, /* opLDSH */ + oLDSB, /* opLDSB */ + oLDSM, /* opLDSM */ + oSTSH, /* opSTS -- integer store maps to 16-bit store */ + oSTSB, /* opSTSB */ + oSTSM, /* opSTSM */ + oLDSXH, /* opLDSX -- integer load maps to 16-bit load */ + oLDSXB, /* opLDSXB */ + oLDSXM, /* opLDSXM */ + oSTSXH, /* opSTSX -- integer store maps to 16-bit store */ + oSTSXB, /* opSTSXB */ + oSTSXM, /* opSTSXM */ + oLAS, /* opLAS */ + oLASX, /* opLASX */ + oSYSIO, /* opSYSIO */ + oLINE, /* opLINE */ +}; + +/*********************************************************************** + * Private Function Prototypes + ***********************************************************************/ + +/*********************************************************************** + * Private Functions + ***********************************************************************/ + +static void +insn16_Generate(enum pcode_e opcode, uint16 arg1, sint32 arg2); + +/*********************************************************************** + * Private Functions + ***********************************************************************/ + +/***********************************************************************/ +/* Disassemble an Op-code */ + +#if CONFIG_DEBUG +static inline void +insn16_DisassemblePCode(ubyte opcode, ubyte arg1, uint16 arg2) +{ + OPTYPE op; + + op.op = opcode; + op.arg1 = arg1; + op.arg2 = arg2; + + insn_DisassemblePCode(lstFile, &op); +} +#else +# define insn16_DisassemblePCode(op,a1,a2) +#endif + +/***********************************************************************/ +/* Generate an Op-Code */ + +static void +insn16_Generate(enum pcode_e opcode, uint16 arg1, sint32 arg2) +{ + uint16 insn_opcode = opmap[opcode]; + uint16 arg16; + TRACE(lstFile,"[insn16_Generate:0x%02x->0x%04x]", opcode, insn_opcode); + + poffAddProgByte(poffHandle, insn_opcode); + if (insn_opcode & o8) + { + if (arg1 > 0xff) error(eINTOVF); + poffAddProgByte(poffHandle, (ubyte)arg1); + } /* End if */ + + if (insn_opcode & o16) + { + if ((arg2 < -32768) || (arg2 > 65535)) error(eINTOVF); + arg16 = (uint16)arg2; + poffAddProgByte(poffHandle, (ubyte)(arg16 >> 8)); + poffAddProgByte(poffHandle, (ubyte)(arg16 & 0xff)); + } /* End if */ + + /* Now, add the disassembled PCode to the list file. */ + + insn16_DisassemblePCode(insn_opcode, arg1, arg2); + +} /* end insn16_Generate */ + +/*********************************************************************** + * Public Functions + ***********************************************************************/ + +void +insn_GenerateSimple(enum pcode_e opcode) +{ + insn16_Generate(opcode, 0, 0); +} + +/***********************************************************************/ + +void +insn_GenerateDataOperation(enum pcode_e opcode, sint32 data) +{ + insn16_Generate(opcode, 0, data); +} + +/***********************************************************************/ +/* Data size for a multiple register operation (in bytes) is simply + * represented by that value at the top of the stack. + */ + +void insn_GenerateDataSize(uint32 dwDataSize) +{ + insn16_Generate(opPUSH, 0, dwDataSize); +} + +/***********************************************************************/ + +void +insn_GenerateFpOperation(ubyte fpOpcode) +{ + insn16_Generate(opFLOAT, fpOpcode, 0); +} + +/***********************************************************************/ + +void +insn_GenerateIoOperation(uint16 ioOpcode, uint16 fileNumber) +{ + insn16_Generate(opSYSIO, fileNumber, (sint32)ioOpcode); +} + +/***********************************************************************/ + +void +insn_BuiltInFunctionCall(uint16 libOpcode) +{ + insn16_Generate(opLIB, 0, (sint32)libOpcode); +} + +/***********************************************************************/ + +void +insn_GenerateLevelReference(enum pcode_e opcode, uint16 level, sint32 offset) +{ + insn16_Generate(opcode, level, offset); +} + +/***********************************************************************/ + +void +insn_GenerateProcedureCall(uint16 level, sint32 offset) +{ + insn16_Generate(opPCAL, level, offset); +} + +/***********************************************************************/ + +void +insn_GenerateLineNumber(uint16 includeNumber, uint32 lineNumber) +{ + insn16_Generate(opLINE, includeNumber, lineNumber); +} + +/***********************************************************************/ + +void +insn_SetStackLevel(uint32 level) +{ + /* Do nothing */ +} diff --git a/misc/pascal/insn16/libinsn/pgetopcode.c b/misc/pascal/insn16/libinsn/pgetopcode.c new file mode 100644 index 000000000..b9167a016 --- /dev/null +++ b/misc/pascal/insn16/libinsn/pgetopcode.c @@ -0,0 +1,138 @@ +/********************************************************************** + * pgetopcode.c + * P-Code access utilities + * + * Copyright (C) 2008 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 "keywords.h" +#include "podefs.h" +#include "pinsn16.h" + +#include "paslib.h" +#include "pofflib.h" +#include "pinsn.h" + +/********************************************************************** + * Private Function Prototypes + **********************************************************************/ + +/********************************************************************** + * Global Variables + **********************************************************************/ + +static sint16 g_bEndIn = 0; /* 1 = oEND pcode or EOF received */ + +/********************************************************************** + * Private Variables + **********************************************************************/ + +/********************************************************************** + * Private Functions + **********************************************************************/ + +/********************************************************************** + * Global Functions + **********************************************************************/ + +/**********************************************************************/ + +uint32 insn_GetOpCode(poffHandle_t handle, OPTYPE *ptr) +{ + uint32 opsize = 1; + int c; + + TRACE(stderr, "[insn_GetOpCode]"); + + /* If we are not already at the EOF, read the next character from + * the input stream. + */ + + if (!g_bEndIn) + c = poffGetProgByte(handle); + else + c = EOF; + + /* Check for end of file. We may have previously parsed oEND which + * is a 'logical' end of file for a pascal program (but not a unit) + * or we may be at the physical end of the file wihout encountering + * oEND (typical for a UNIT file). + */ + + if ((g_bEndIn) || (c == EOF)) + { + ptr->op = oEND; + ptr->arg1 = 0; + ptr->arg2 = 0; + } /* end if */ + else + { + ptr->op = c; + g_bEndIn = (ptr->op == oEND); + + if (ptr->op & o8) + { + ptr->arg1 = poffGetProgByte(handle); + opsize++; + } + else + { + ptr->arg1 = 0; + } + + if (ptr->op & o16) + { + ptr->arg2 = (poffGetProgByte(handle) << 8); + ptr->arg2 |= (poffGetProgByte(handle) & 0xff); + opsize += 2; + } + else + { + ptr->arg2 = 0; + } + } + return opsize; +} + +/**********************************************************************/ + +void insn_ResetOpCodeRead(poffHandle_t handle) +{ + poffResetAccess(handle); + g_bEndIn = 0; +} + +/***********************************************************************/ diff --git a/misc/pascal/insn16/libinsn/preloc.c b/misc/pascal/insn16/libinsn/preloc.c new file mode 100644 index 000000000..9db115c28 --- /dev/null +++ b/misc/pascal/insn16/libinsn/preloc.c @@ -0,0 +1,147 @@ +/********************************************************************** + * preloc.c + * Perform P-Code relocations + * + * Copyright (C) 2008 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 "keywords.h" +#include "pdefs.h" +#include "pedefs.h" +#include "podefs.h" +#include "pinsn16.h" + +#include "pofflib.h" +#include "perr.h" +#include "pinsn.h" + +/********************************************************************** + * Definitions + **********************************************************************/ + +/********************************************************************** + * Private Type Definitions + **********************************************************************/ + +/********************************************************************** + * Private Function Prototypes + **********************************************************************/ + +/********************************************************************** + * Global Variables + **********************************************************************/ + +/********************************************************************** + * Private Variables + **********************************************************************/ + +/********************************************************************** + * Private Functions + **********************************************************************/ + +int insn_Relocate(OPTYPE *op, uint32 pcOffset, uint32 roOffset) +{ + switch (op->op) + { + /* Catch each instruction that references the read-only data + * section. + */ + + case oLAC: + /* Add the offset to the read-only data section */ + + op->arg2 += roOffset; + break; + + /* Catch each instruction that references the text section + * data via an offset. + */ + + case oPCAL: /* Procedure / Function calls */ + case oJMP: /* Unconditional jump */ + case oJEQUZ: /* Jump on unary comparisons with zero */ + case oJNEQZ: + case oJLTZ: + case oJGTEZ: + case oJGTZ: + case oJLTEZ: + case oJEQU: /* Jump on binary comparisons */ + case oJNEQ: + case oJLT: + case oJGTE: + case oJGT: + case oJLTE: + /* Add the offset to the text section */ + + op->arg2 += pcOffset; + break; + + /* Return an end of file indication if oEND encountered */ + + case oEND: + return 1; + + /* Otherwise, it is not an interesting opcode */ + default: + break; + } + + /* Return 0 on all opcodes other than oEND */ + + return 0; +} + +/***********************************************************************/ + +void insn_FixupProcedureCall(ubyte *progData, uint32 symValue) +{ + + /* Sanity checking */ + + if (progData[0] != oPCAL) + fatal(ePOFFCONFUSION); + + if (symValue > 0xffff) + fatal(eBADSHORTINT); + + /* Perform the relocation */ + + progData[2] = symValue >> 8; + progData[3] = symValue & 0xff; +} + + +/***********************************************************************/ -- cgit v1.2.3