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Add emuext pragma and associated instructions. This provides two emulator specific instructions ("log" and "debug") enabled by the "emuext" pragma. This is from a patch provided by tim Lindner <tlindner@macmess.org>. From Tim's submission: ---- I stole the whole patch from Erik Gavriluk. I hope he doesn't mind. :) The two instructions are "debug" and "log". They are enabled with pragmas. I also added them to the manual. Hopefully all is well. ---- Said Erik Gavriluk <erik@bombfactory.com> in response: ...happy to see them picked up in mainline (if you choose to do so)....
author William Astle <lost@l-w.ca>
date Thu, 01 Nov 2018 23:00:00 -0600
parents 5d401d1eb3e9
children
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1 /*
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2 debug.c
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3
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4 Copyright © 2010 William Astle
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5
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6 This file is part of LWTOOLS.
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7
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8 LWTOOLS is free software: you can redistribute it and/or modify it under the
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9 terms of the GNU General Public License as published by the Free Software
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10 Foundation, either version 3 of the License, or (at your option) any later
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11 version.
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12
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13 This program is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 more details.
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17
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18 You should have received a copy of the GNU General Public License along with
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19 this program. If not, see <http://www.gnu.org/licenses/>.
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20 */
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21
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22 #ifndef LWASM_NODEBUG
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23
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24 #include <stdio.h>
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25 #include <string.h>
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26 #include <stdarg.h>
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27 #include <time.h>
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28
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29 #include "lwasm.h"
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30 #include "instab.h"
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31
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32 /*
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33
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34 Various debug utilities
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35
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36 */
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37 void dump_state(asmstate_t *as)
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38 {
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39 line_t *cl;
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40 // exportlist_t *ex;
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41 // struct symtabe *s;
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42 // importlist_t *im;
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43 struct line_expr_s *le;
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44 lwasm_error_t *e;
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45
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46 debug_message(as, 100, "Lines:");
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47
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48 for (cl = as -> line_head; cl; cl = cl -> next)
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49 {
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50 debug_message(as, 100, "%p INSN %d (%s) LEN %d DLEN %d PRAGMA %x", cl, cl -> insn, (cl -> insn >= 0) ? instab[cl -> insn].opcode : "<none>", cl -> len, cl -> dlen, cl -> pragmas);
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51 debug_message(as, 100, " ADDR: %s", lw_expr_print(cl -> addr));
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52 debug_message(as, 100, " DADDR: %s", lw_expr_print(cl -> daddr));
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53 debug_message(as, 100, " PB: %02X; LINT: %X; LINT2: %X", cl -> pb, cl -> lint, cl -> lint2);
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54 for (le = cl -> exprs; le; le = le -> next)
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55 {
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56 debug_message(as, 100, " EXPR %d: %s", le -> id, lw_expr_print(le -> expr));
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57 }
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58 if (cl -> outputl > 0)
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59 {
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60 int i;
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61 for (i = 0; i < cl -> outputl; i++)
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62 {
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63 debug_message(as, 100, " OBYTE %02X: %02X", i, cl -> output[i]);
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64 }
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65 }
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66 for (e = cl -> err; e; e = e -> next)
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67 {
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68 debug_message(as, 100, " ERR: %s", e -> mess);
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69 }
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70 for (e = cl -> warn; e; e = e -> next)
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71 {
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72 debug_message(as, 100, " WARN: %s", e -> mess);
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73 }
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74 }
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75 }
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76
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77 void real_debug_message(asmstate_t *as, int level, const char *fmt, ...)
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78 {
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79 va_list args;
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80
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81 if (as -> debug_level < level)
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82 return;
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83
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84 if (as -> debug_file == NULL)
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85 as -> debug_file = stderr;
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86
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87 va_start(args, fmt);
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88
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89 fprintf(as -> debug_file, "DEBUG %03d (%ld): ", level, (long)time(NULL));
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90 vfprintf(as -> debug_file, fmt, args);
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91 fputc('\n', as -> debug_file);
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92
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93 va_end(args);
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94 }
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95
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96 #endif