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annotate src/lwasm.h @ 54:360d53062bb9
Fixed typo in instruction table and added END directive
author | lost |
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date | Sun, 04 Jan 2009 20:38:12 +0000 |
parents | 21ae0fab469b |
children | 8e32696380f3 |
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0 | 1 /* |
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2 lwasm.h |
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3 Copyright © 2008 William Astle |
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4 |
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5 This file is part of LWASM. |
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6 |
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7 LWASM is free software: you can redistribute it and/or modify it under the |
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8 terms of the GNU General Public License as published by the Free Software |
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9 Foundation, either version 3 of the License, or (at your option) any later |
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10 version. |
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11 |
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12 This program is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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15 more details. |
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16 |
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17 You should have received a copy of the GNU General Public License along with |
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18 this program. If not, see <http://www.gnu.org/licenses/>. |
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19 |
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20 Contains the main defs used by the assembler |
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21 */ |
0 | 22 |
23 | |
24 #ifndef __lwasm_h_seen__ | |
25 #define __lwasm_h_seen__ | |
26 | |
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27 #include "expr.h" |
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28 |
0 | 29 #define OUTPUT_DECB 0 // DECB multirecord format |
30 #define OUTPUT_RAW 1 // raw sequence of bytes | |
21 | 31 #define OUTPUT_OBJ 2 // proprietary object file format |
46 | 32 #define OUTPUT_RAWREL 3 // raw bytes where ORG causes a SEEK in the file |
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33 |
26 | 34 // structure for tracking errors |
35 typedef struct lwasm_error_s lwasm_error_t; | |
36 struct lwasm_error_s | |
37 { | |
38 char *mess; // the actual error message | |
39 lwasm_error_t *next; // ptr to next error | |
40 }; | |
41 | |
21 | 42 // structure for keeping track of lines |
43 typedef struct lwasm_line_s lwasm_line_t; | |
44 struct lwasm_line_s { | |
45 char *text; // the actual text of the line | |
46 int lineno; // line number within the file | |
47 char *filename; // file name reference | |
48 lwasm_line_t *next; // next line | |
49 lwasm_line_t *prev; // previous line | |
26 | 50 lwasm_error_t *err; // error messages |
28 | 51 int fsize; // forced size (0 = no forced size) |
37
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52 char *sym; // scratch area to record the presence of a symbol |
42 | 53 unsigned char *bytes; // actual bytes emitted |
54 int codelen; // number of bytes emitted | |
55 int codesize; // the size of the code buffer | |
44 | 56 int codeaddr; // address the code goes at |
46 | 57 int nocodelen; // for "RMB" type instructions |
49
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58 int addrset; // set if this instruction sets the assembly address |
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59 int symaddr; // set if this instruction sets a symbol addr with EQU or the like |
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60 }; |
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61 |
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62 // for keeping track of symbols |
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63 typedef struct lwasm_symbol_ent_s lwasm_symbol_ent_t; |
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64 struct lwasm_symbol_ent_s |
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65 { |
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66 char *sym; // the symbol |
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67 int context; // the context number of the symbol (-1 for global) |
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68 int value; // the value of the symbol |
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69 lwasm_symbol_ent_t *next; // next symbol in the table |
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70 lwasm_symbol_ent_t *prev; // previous symbol in the table |
21 | 71 }; |
0 | 72 |
73 // keep track of current assembler state | |
74 typedef struct { | |
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75 int dpval; // current dp value (setdp) |
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76 int addr; // current address |
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77 int context; // context counter (for local symbols) |
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78 int errorcount; // error count |
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79 int passnum; // which pass are we on? |
21 | 80 int execaddr; // execution address for the program (END ....) |
81 int pragmas; // what pragmas are in effect? | |
82 | |
83 lwasm_line_t *lineshead; // first line of source code | |
84 lwasm_line_t *linestail; // last line of source code | |
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85 |
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86 lwasm_symbol_ent_t *symhead; // first entry in symbol table |
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87 lwasm_symbol_ent_t *symtail; // last entry in symbol table |
21 | 88 |
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89 const char *infile; // input file |
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90 const char *outfile; // output file |
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91 const char *listfile; // output listing file |
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92 int outformat; // output format type |
21 | 93 char **filelist; // files that have been read |
94 int filelistlen; // number of files in the list | |
54
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95 |
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96 int endseen; // set to true if "end" has been seen |
0 | 97 } asmstate_t; |
98 | |
99 #define PRAGMA_NOINDEX0TONONE 1 | |
100 | |
26 | 101 #ifndef __lwasm_c_seen__ |
102 #define __lwasm_E__ extern | |
103 #else | |
104 #define __lwasm_E__ | |
105 #endif | |
106 | |
38 | 107 __lwasm_E__ int debug_level; |
108 | |
26 | 109 __lwasm_E__ int register_error(asmstate_t *as, lwasm_line_t *l, int pass, const char *fmt, ...); |
38 | 110 __lwasm_E__ void debug_message(int level, const char *fmt, ...); |
26 | 111 |
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112 __lwasm_E__ void lwasm_emit(asmstate_t *as, lwasm_line_t *l, int b); |
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113 __lwasm_E__ void lwasm_emitop(asmstate_t *as, lwasm_line_t *l, int o); |
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114 __lwasm_E__ int lwasm_lookupreg2(const char *reglist, char **str); |
32 | 115 __lwasm_E__ int lwasm_lookupreg3(const char *rlist, const char **str); |
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116 |
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117 __lwasm_E__ lwasm_expr_stack_t *lwasm_evaluate_expr(asmstate_t *as, lwasm_line_t *l, const char *inp, const char **outp); |
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118 |
26 | 119 #undef __lwasm_E__ |
120 | |
121 | |
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122 #ifndef __symbol_c_seen__ |
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123 #define __lwasm_E__ extern |
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124 #else |
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125 #define __lwasm_E__ |
0 | 126 #endif |
127 | |
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128 __lwasm_E__ int lwasm_register_symbol(asmstate_t *as, lwasm_line_t *l, char *sym, int val); |
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129 __lwasm_E__ lwasm_symbol_ent_t *lwasm_find_symbol(asmstate_t *as, char *sym, int scontext); |
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130 __lwasm_E__ int lwasm_set_symbol(asmstate_t *as, char *sym, int scontext, int val); |
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131 |
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132 #undef __lwasm_E__ |
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133 |
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134 |
0 | 135 |
136 #endif //__lwasm_h_seen__ |