FreeCalypso > hg > freecalypso-tools
annotate ringtools/fc-e1gen.c @ 926:6a0aa8d36d06
rvinterf backslash escape: introduce libprint
The new helper function library named libprint is meant to replace
the badly misnamed libg23, and will soon contain functions for
printing all of the same kinds of GPF TST packets that are now handled
in libg23. However, we are also moving safe_print_trace() from libasync
to this new library, and changing it to emit our new backslash escape
format.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 23 May 2023 03:47:46 +0000 |
parents | 2133c475f5bd |
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rev | line source |
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1 /* |
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2 * This program is an experimental compiler for TI's Melody E1 format |
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3 * based on the description given in the L1M_AS001_1.pdf document |
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4 * found in the Peek/FGW drop. |
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5 */ |
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6 |
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7 #include <sys/types.h> |
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8 #include <stdio.h> |
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9 #include <stdlib.h> |
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10 #include <ctype.h> |
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11 #include <string.h> |
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12 #include <strings.h> |
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13 |
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14 #define MAX_FIELDS 17 |
33
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15 |
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16 char *infname, *outfname; |
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17 FILE *inf, *outf; |
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18 char linebuf[512], *fields[MAX_FIELDS+1]; |
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19 int lineno, nfields; |
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20 |
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21 int global_osc_set; |
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22 int start_time, osc_mask; |
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23 u_short osc_words[8][4]; |
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24 |
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25 get_input_line() |
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26 { |
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27 char *cp; |
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28 int n; |
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29 |
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30 if (!fgets(linebuf, sizeof linebuf, inf)) { |
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31 fprintf(stderr, "%s: unexpected EOF\n", infname); |
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32 exit(1); |
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33 } |
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34 cp = index(linebuf, '\n'); |
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35 if (!cp) { |
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36 fprintf(stderr, "%s line %d: too long or missing newline\n", |
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37 infname, lineno); |
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38 exit(1); |
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39 } |
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40 *cp = '\0'; |
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41 /* parse it into fields */ |
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42 cp = linebuf; |
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43 n = 0; |
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44 for (;;) { |
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45 while (isspace(*cp)) |
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46 cp++; |
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47 if (*cp == '\0' || *cp == '#') |
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48 break; |
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49 if (n >= MAX_FIELDS) { |
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50 fprintf(stderr, "%s line %d: too many fields\n", |
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51 infname, lineno); |
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52 exit(1); |
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53 } |
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54 fields[n++] = cp; |
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55 while (*cp && !isspace(*cp)) |
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56 cp++; |
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57 if (*cp) |
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58 *cp++ = '\0'; |
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59 } |
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60 fields[n] = 0; |
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61 nfields = n; |
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62 } |
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63 |
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64 input_number(str, min, max) |
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65 char *str; |
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66 { |
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67 char *endp; |
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68 long val; |
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69 |
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70 val = strtol(str, &endp, 10); |
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71 if (*endp) { |
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72 fprintf(stderr, |
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73 "%s line %d: \"%s\" is not a valid decimal number\n", |
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74 infname, lineno, str); |
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75 exit(1); |
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76 } |
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77 if (val < min || val > max) { |
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78 fprintf(stderr, "%s line %d: number %ld is out of range\n", |
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79 infname, lineno, val); |
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80 exit(1); |
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81 } |
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82 return val; |
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83 } |
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84 |
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85 input_paren_number(str, min, max) |
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86 char *str; |
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87 { |
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88 char *cp; |
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89 |
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90 if (str[0] != '(') { |
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91 badparen: fprintf(stderr, |
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92 "%s line %d: bad parenthesized argument \"%s\"\n", |
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93 infname, lineno, str); |
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94 exit(1); |
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95 } |
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96 cp = index(str, ')'); |
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97 if (!cp || cp[1]) |
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98 goto badparen; |
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99 *cp = '\0'; |
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100 return input_number(str + 1, min, max); |
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101 } |
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102 |
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103 handle_time_line() |
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104 { |
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105 if (nfields != 2) { |
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106 fprintf(stderr, "%s line %d: time header takes 1 argument\n", |
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107 infname, lineno); |
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108 exit(1); |
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109 } |
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110 start_time = input_number(fields[1], 1, 255); |
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111 } |
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112 |
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113 check_req_field(n) |
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114 { |
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115 if (n >= nfields) { |
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116 fprintf(stderr, "%s line %d: too few fields\n", |
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117 infname, lineno); |
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118 exit(1); |
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119 } |
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120 } |
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121 |
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122 process_osc_line() |
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123 { |
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124 int p = 1; |
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125 int oscn, osc_bit; |
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126 u_short word0, word1, word2, word3; |
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127 int amp, freq, length; |
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128 int tremT0, tremFreq; |
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129 int sustain, t1, t2, t3, t5; |
175
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130 int bit0; |
33
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131 |
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132 check_req_field(p); |
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133 oscn = input_number(fields[p], 0, 7); |
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134 p++; |
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135 osc_bit = 1 << oscn; |
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136 if (osc_mask & osc_bit) { |
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137 fprintf(stderr, "%s line %d: osc %d defined more than once\n", |
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138 infname, lineno, oscn); |
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139 exit(1); |
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140 } |
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141 osc_mask |= osc_bit; |
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142 |
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143 /* basic part */ |
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144 check_req_field(p); |
175
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145 if (fields[p][0] == '(') { |
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146 bit0 = input_paren_number(fields[p], 0, 1); |
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147 p++; |
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148 check_req_field(p); |
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149 } else |
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150 bit0 = 0; |
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151 if (!strcmp(fields[p], "df")) { |
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152 p++; |
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153 check_req_field(p); |
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154 freq = input_number(fields[p], -8192, 8191) & 0x3FFF; |
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155 p++; |
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156 check_req_field(p); |
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157 amp = input_number(fields[p], 0, 1023); |
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158 p++; |
175
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159 word0 = freq << 2 | 2 | bit0; |
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160 word1 = amp << 6; |
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161 } else { |
175
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162 word0 = bit0; |
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163 if (!strcmp(fields[p], "sq1")) { |
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164 p++; |
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165 word0 |= 4; |
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166 check_req_field(p); |
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167 } |
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168 if (!strcmp(fields[p], "sq2")) { |
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169 p++; |
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170 word0 |= 8; |
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171 check_req_field(p); |
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172 } |
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173 amp = input_number(fields[p], 0, 63); |
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174 p++; |
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175 check_req_field(p); |
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176 freq = input_number(fields[p], 0, 63); |
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177 p++; |
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178 word0 |= (freq << 10) | (amp << 4); |
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179 check_req_field(p); |
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180 length = input_number(fields[p], 0, 1023); |
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181 p++; |
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182 word1 = length << 6; |
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183 } |
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184 |
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185 /* optional 3rd word */ |
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186 if (p < nfields && !strcmp(fields[p], "trem")) { |
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187 p++; |
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188 word1 |= 0x10; |
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189 check_req_field(p); |
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190 tremT0 = input_number(fields[p], 0, 7); |
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191 p++; |
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192 check_req_field(p); |
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193 tremFreq = input_number(fields[p], -16, 15) & 31; |
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194 p++; |
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195 word2 = (tremFreq << 11) | (tremT0 << 8); |
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196 } |
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197 |
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198 /* optional 4th word */ |
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199 if (p < nfields && !strcmp(fields[p], "env")) { |
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200 p++; |
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201 word1 |= 0x20; |
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202 check_req_field(p); |
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203 sustain = input_number(fields[p], 0, 15); |
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204 p++; |
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205 check_req_field(p); |
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206 t1 = input_number(fields[p], 0, 7); |
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207 p++; |
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208 check_req_field(p); |
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209 t2 = input_number(fields[p], 0, 7); |
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210 p++; |
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211 check_req_field(p); |
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212 t3 = input_number(fields[p], 0, 7); |
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213 p++; |
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214 check_req_field(p); |
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215 t5 = input_number(fields[p], 0, 7); |
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216 p++; |
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217 word3 = (t1 << 13) | (t2 << 10) | (t3 << 7) | (t5 << 4) | |
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218 sustain; |
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219 } |
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220 |
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221 if (p != nfields) { |
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222 fprintf(stderr, "%s line %d: unexpected extra fields\n", |
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223 infname, lineno); |
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224 } |
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225 osc_words[oscn][0] = word0; |
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226 osc_words[oscn][1] = word1; |
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227 osc_words[oscn][2] = word2; |
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228 osc_words[oscn][3] = word3; |
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229 } |
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230 |
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231 read_osc_lines() |
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232 { |
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233 osc_mask = 0; |
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234 for (;;) { |
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235 get_input_line(); |
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236 if (!nfields) |
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237 break; |
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238 if (!strcmp(fields[0], "osc")) { |
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239 process_osc_line(); |
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240 continue; |
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241 } |
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242 fprintf(stderr, "%s line %d: osc line expected\n", |
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243 infname, lineno); |
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244 exit(1); |
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245 } |
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246 } |
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247 |
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248 emit_16bit_word(word) |
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249 u_short word; |
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250 { |
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251 putc(word & 0xFF, outf); |
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252 putc(word >> 8, outf); |
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253 } |
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254 |
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255 emit_record() |
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256 { |
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257 int oscn, osc_bit; |
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258 |
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259 putc(start_time, outf); |
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260 putc(osc_mask, outf); |
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261 for (oscn = 0; oscn < 8; oscn++) { |
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262 osc_bit = 1 << oscn; |
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263 if (!(osc_mask & osc_bit)) |
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264 continue; |
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265 emit_16bit_word(osc_words[oscn][0]); |
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266 emit_16bit_word(osc_words[oscn][1]); |
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267 if (osc_words[oscn][1] & 0x10) |
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268 emit_16bit_word(osc_words[oscn][2]); |
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269 if (osc_words[oscn][1] & 0x20) |
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270 emit_16bit_word(osc_words[oscn][3]); |
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271 } |
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272 } |
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273 |
172
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274 handle_global_osc_set() |
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275 { |
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276 int p; |
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277 int oscn, osc_bit; |
175
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278 int dummy_time_byte; |
172
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279 |
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280 do |
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281 get_input_line(); |
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282 while (!nfields); |
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283 if (strcmp(fields[0], "osc-set")) { |
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284 fprintf(stderr, "%s line %d: osc-set line expected\n", |
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285 infname, lineno); |
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286 exit(1); |
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287 } |
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288 if (nfields < 2) { |
175
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289 emptyerr: fprintf(stderr, "%s line %d: osc-set must be non-empty\n", |
172
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290 infname, lineno); |
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291 exit(1); |
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292 } |
175
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293 p = 1; |
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294 if (fields[p][0] == '(') { |
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295 dummy_time_byte = input_paren_number(fields[p], 0, 255); |
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296 p++; |
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297 if (nfields < 3) |
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298 goto emptyerr; |
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299 } else |
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300 dummy_time_byte = 0; |
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301 for (; p < nfields; p++) { |
172
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302 oscn = input_number(fields[p], 0, 7); |
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303 osc_bit = 1 << oscn; |
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304 global_osc_set |= osc_bit; |
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305 } |
175
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306 putc(dummy_time_byte, outf); |
172
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307 putc(global_osc_set, outf); |
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308 } |
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309 |
33
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310 main(argc, argv) |
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311 char **argv; |
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312 { |
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313 if (argc != 3) { |
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314 fprintf(stderr, "usage: %s src-file e1-bin-file\n", argv[0]); |
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315 exit(1); |
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316 } |
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317 if (strcmp(argv[1], "-")) { |
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318 infname = argv[1]; |
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319 inf = fopen(infname, "r"); |
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320 if (!inf) { |
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321 perror(infname); |
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322 exit(1); |
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323 } |
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324 } else { |
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325 infname = "stdin"; |
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326 inf = stdin; |
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327 } |
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328 outfname = argv[2]; |
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329 outf = fopen(outfname, "w"); |
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330 if (!outf) { |
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331 perror(outfname); |
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332 exit(1); |
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333 } |
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334 |
172
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335 handle_global_osc_set(); |
33
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336 /* main loop */ |
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337 for (;;) { |
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338 do |
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339 get_input_line(); |
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340 while (!nfields); |
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341 if (!strcmp(fields[0], "time")) { |
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342 handle_time_line(); |
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343 read_osc_lines(); |
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344 emit_record(); |
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345 } else if (!strcmp(fields[0], "end")) { |
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346 emit_16bit_word(0); |
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347 exit(0); |
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348 } else { |
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349 fprintf(stderr, "%s line %d: expected time or end\n", |
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|
350 infname, lineno); |
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351 exit(1); |
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352 } |
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353 } |
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354 } |