FreeCalypso > hg > fc-magnetite

annotate helpers/srec4ram.c @ 361:9e0608dc9170

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l1_cust.c: madc_vbat_inverse() function added for the new FCHG
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 29 Dec 2017 05:51:08 +0000
parents 40b08f6cb2b8
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
92
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * This ad hoc utility is used as part of building RAM-loadable
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3 * firmware images for targets with large RAM. It reads the ramimage.m0
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4 * S-record file produced by TI's hex470 post-linker and re-emits it
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5 * in another SREC form that is suitable for feeding to fc-xram.
40b08f6cb2b8 srec4ram helper utility written
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6 */
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7
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8 #include <sys/types.h>
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9 #include <ctype.h>
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10 #include <stdio.h>
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11 #include <stdlib.h>
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12 #include <string.h>
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13 #include <strings.h>
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14
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15 char *infname;
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16 FILE *inf, *outf;
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17 char srecbuf[80];
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18 u_char srecbin[40], srecout[40];
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19 int lineno;
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20
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21 decode_hex_byte(s)
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22 char *s;
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23 {
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24 register int u, l;
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25
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26 if (!isxdigit(s[0]) || !isxdigit(s[1]))
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27 return(-1);
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28 if (isdigit(s[0]))
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29 u = s[0] - '0';
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30 else if (isupper(s[0]))
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31 u = s[0] - 'A' + 10;
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32 else
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33 u = s[0] - 'a' + 10;
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34 if (isdigit(s[1]))
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35 l = s[1] - '0';
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36 else if (isupper(s[1]))
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37 l = s[1] - 'A' + 10;
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38 else
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39 l = s[1] - 'a' + 10;
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40 return((u << 4) | l);
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41 }
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42
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43 srec2bin()
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44 {
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45 register int i, l, b;
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46
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47 l = decode_hex_byte(srecbuf + 2);
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48 if (l < 1) {
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49 fprintf(stderr, "%s line %d: S-record length octet is bad\n",
40b08f6cb2b8 srec4ram helper utility written
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50 infname, lineno);
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51 exit(1);
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52 }
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53 srecbin[0] = l;
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54 if (l > 35) {
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55 fprintf(stderr,
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56 "%s line %d: S-record is longer than expected\n",
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57 infname, lineno);
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58 exit(1);
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59 }
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60 for (i = 1; i <= l; i++) {
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61 b = decode_hex_byte(srecbuf + i*2 + 2);
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62 if (b < 0) {
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63 fprintf(stderr, "%s line %d: hex decode error\n",
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64 infname, lineno);
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65 exit(1);
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66 }
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67 srecbin[i] = b;
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68 }
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69 return(0);
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70 }
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71
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72 srec_cksum()
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73 {
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74 u_char accum;
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75 register int i, len;
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76
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77 len = srecbin[0] + 1;
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78 accum = 0;
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79 for (i = 0; i < len; i++)
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80 accum += srecbin[i];
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81 if (accum != 0xFF) {
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82 fprintf(stderr, "%s line %d: bad checksum\n", infname, lineno);
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83 exit(1);
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84 }
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85 return(0);
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86 }
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87
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88 emit_output_srec(type, buf)
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89 u_char *buf;
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90 {
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91 int i;
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92 u_char accum = 0;
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93
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94 putc('S', outf);
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95 putc(type, outf);
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96 for (i = 0; i < buf[0]; i++) {
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97 fprintf(outf, "%02X", buf[i]);
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98 accum += buf[i];
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99 }
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100 fprintf(outf, "%02X\n", ~accum & 0xFF);
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101 return 0;
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102 }
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103
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104 transform_s3()
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105 {
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106 int datalen;
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107 u_char *sp, *dp;
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108 int i;
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109
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110 if (srecbin[0] < 6) {
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111 fprintf(stderr,
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112 "%s line %d: S3 record is too short\n",
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113 infname, lineno);
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114 exit(1);
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115 }
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116 datalen = srecbin[0] - 5;
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117 if (datalen & 1) {
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118 fprintf(stderr, "%s line %d: odd data length\n",
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119 infname, lineno);
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120 exit(1);
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121 }
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122 sp = srecbin;
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123 dp = srecout;
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124 for (i = 0; i < 5; i++)
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125 *dp++ = *sp++;
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126 for (i = 0; i < datalen; i += 2) {
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127 dp[0] = sp[1];
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128 dp[1] = sp[0];
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129 sp += 2;
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130 dp += 2;
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131 }
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132 return 0;
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133 }
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134
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135 generate_vectors_record()
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136 {
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137 u_char *dp;
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138 u_long addr;
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139 int i;
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140
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141 srecout[0] = 28 + 5;
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142 srecout[1] = 0x00;
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143 srecout[2] = 0x80;
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144 srecout[3] = 0x00;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 srecout[4] = 0x00;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 dp = srecout + 5;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 for (i = 0; i < 7; i++) {
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 addr = 0x01004000 + i * 4;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 *dp++ = addr;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 *dp++ = addr >> 8;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 *dp++ = addr >> 16;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 *dp++ = addr >> 24;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 }
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 emit_output_srec('3', srecout);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 return 0;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 }
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 generate_jump_record()
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 {
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 srecout[0] = 5;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 srecout[1] = 0x01;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 srecout[2] = 0x00;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 srecout[3] = 0x40;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 srecout[4] = 0x58;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 emit_output_srec('7', srecout);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 return 0;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 }
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 main(argc, argv)
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 char **argv;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 {
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 if (argc < 2 || argc > 3) {
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 fprintf(stderr, "usage: %s input.m0 [output.srec]\n", argv[0]);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 exit(1);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 }
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 infname = argv[1];
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 inf = fopen(infname, "r");
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 if (!inf) {
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 perror(infname);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 exit(1);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 }
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 if (argc > 2) {
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 outf = fopen(argv[2], "w");
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 if (!outf) {
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 perror(argv[2]);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 exit(1);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 }
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 } else
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 outf = stdout;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 for (lineno = 1; ; lineno++) {
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 if (!fgets(srecbuf, sizeof srecbuf, inf)) {
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 fprintf(stderr, "%s: premature EOF\n", infname);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 exit(1);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 }
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 if (srecbuf[0] != 'S') {
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 fprintf(stderr, "%s line %d: not an S-record\n",
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 infname, lineno);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 exit(1);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 }
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 srec2bin();
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 srec_cksum();
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 switch (srecbuf[1]) {
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 case '0':
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 emit_output_srec('0', srecbin);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 continue;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 case '3':
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 transform_s3();
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 emit_output_srec('3', srecout);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 continue;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 case '7':
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 break;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 default:
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 fprintf(stderr, "%s line %d: unexpected S%c record\n",
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 infname, lineno, srecbuf[1]);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 exit(1);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 }
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 break;
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 }
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 generate_vectors_record();
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 generate_jump_record();
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 exit(0);
40b08f6cb2b8 srec4ram helper utility written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 }