1 | /*
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2 | =============================================================================
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3 | asgvce.c -- MIDAS-VII -- assign voice / enter notes into score
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4 | Version 12 -- 1988-10-03 -- D.N. Lynx Crowe
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5 | =============================================================================
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6 | */
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7 |
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8 | #undef DEBUGGER /* define to enable debug trace */
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9 |
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10 | #define DEBUGIT 0
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11 |
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12 | #include "debug.h"
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13 |
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14 | #include "biosdefs.h"
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15 | #include "stddefs.h"
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16 | #include "graphdef.h"
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17 | #include "hwdefs.h"
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18 | #include "smdefs.h"
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19 | #include "sclock.h"
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20 | #include "score.h"
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21 | #include "slice.h"
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22 | #include "vsdd.h"
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23 |
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24 | #include "midas.h"
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25 | #include "scfns.h"
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26 | #include "scdsp.h"
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27 |
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28 | #if DEBUGIT
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29 | extern short debugsw;
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30 | #endif
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31 |
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32 | /* |
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33 |
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34 | */
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35 |
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36 | extern int16_t clksrc; /* clock source */
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37 | extern int16_t curasg; /* current assignment table */
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38 | extern int16_t legato; /* "legato" mode flag */
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39 | extern int16_t lstbgnc; /* last note begin entry count */
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40 | extern int16_t lstendc; /* last note end entry count */
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41 | extern int16_t lstflag; /* last note list end flag */
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42 | extern int16_t ndisp; /* current display number */
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43 | extern int16_t newflag; /* new data entered while t_ctr EQ t_cur */
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44 | extern int16_t nkdown; /* number of keys down */
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45 | extern int16_t recsw; /* record/play switch */
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46 | extern int16_t sd; /* score display direction */
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47 | extern int16_t se; /* score execution direction */
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48 | extern int16_t stepenb; /* step enable */
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49 | extern int16_t stepint; /* note interval */
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50 | extern int16_t stepwgt; /* note weight */
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51 | extern int16_t velflag; /* velocity display enable flag */
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52 |
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53 | extern int16_t grpmode[]; /* group mode table */
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54 | extern int16_t grpstat[]; /* group status table */
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55 | extern int16_t ins2grp[]; /* instrument to group assigments */
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56 | extern int16_t vce2grp[]; /* voice to group map */
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57 | extern int16_t lastvce[]; /* last voice assigned in each group */
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58 | extern int16_t lastvel[]; /* last velocity seen by each group */
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59 | extern int16_t tuntab[]; /* current tuning table */
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60 | extern int16_t vce2trg[]; /* voice to trigger map (-1 EQ NULL) */
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61 |
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62 | extern int16_t stepfrm[][17]; /* steps per frame table */
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63 |
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64 | extern uint16_t *obj8; /* score display object pointer */
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65 |
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66 | extern struct gdsel *gdstbc[]; /* group status table - center slice */
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67 |
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68 | extern struct n_entry *lstbgns[NLSTENTS]; /* note begin pointers */
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69 | extern struct n_entry *lstends[NLSTENTS]; /* note end pointers */
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70 |
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71 | extern struct nevent *nefree; /* pointer to free note entries */
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72 | extern struct nevent *nelist; /* pointer to note entry list */
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73 |
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74 | extern struct nevent nevents[NNEVTS]; /* note event list */
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75 |
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76 | /* |
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77 |
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78 | */
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79 |
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80 | /*
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81 | =============================================================================
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82 | clrnl() -- clear note list
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83 | =============================================================================
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84 | */
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85 |
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86 | void clrnl(void)
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87 | {
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88 | register int16_t i;
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89 |
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90 | DB_ENTR("clrnl");
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91 |
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92 | for (i = 0; i < NNEVTS - 1; i++) {
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93 |
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94 | nevents[i].nxt = &nevents[i + 1];
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95 | nevents[i].note = 0;
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96 | nevents[i].group = 0;
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97 | }
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98 |
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99 | nevents[NNEVTS - 1].nxt = (struct nevent *)0L;
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100 |
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101 | nelist = (struct nevent *)0L;
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102 | nefree = &nevents[0];
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103 | nkdown = 0;
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104 |
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105 | DB_EXIT("clrnl");
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106 | }
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107 |
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108 | /* |
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109 |
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110 | */
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111 |
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112 | /*
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113 | =============================================================================
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114 | ne_end() -- enter a note end event
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115 | =============================================================================
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116 | */
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117 |
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118 | void ne_end(int16_t trg, int16_t grp)
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119 | {
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120 | register int16_t nn;
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121 | register int32_t fcend;
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122 | register struct nevent *nx;
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123 | register struct n_entry *ep;
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124 |
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125 | DB_ENTR("ne_end");
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126 |
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127 | /* must be recording into a voice in record mode ... */
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128 |
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129 | if ((recsw EQ 0) OR (grpmode[grp] NE 2)) {
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130 |
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131 | DB_EXIT("ne_end");
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132 | return; /* ... or, we're done */
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133 | }
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134 |
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135 | DB_CMNT("ne_end - recording");
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136 |
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137 | /* make pointers point in the forward direction */
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138 |
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139 | if (sd EQ D_BAK)
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140 | chgsdf();
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141 |
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142 | if (se EQ D_BAK)
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143 | chgsef();
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144 | /* |
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145 |
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146 | */
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147 | nn = trg & 0x007F; /* note number */
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148 |
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149 | if (clksrc NE CK_STEP) { /* not in step mode */
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150 |
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151 | DB_CMNT("ne_end - non-step");
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152 |
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153 | if (E_NULL NE (ep = (struct n_entry *)e_alc(E_SIZE1))) {
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154 |
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155 | DB_CMNT("ne_end - enter note end");
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156 | ep->e_time = t_cur;
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157 | ep->e_type = EV_NEND | 0x80;
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158 | ep->e_note = nn;
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159 | ep->e_group = grp;
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160 | ep->e_vel = SM_SCALE(64);
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161 |
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162 | p_cur = e_ins((struct s_entry *)ep,
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163 | ep_adj(p_cur, 0, t_cur))->e_fwd;
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164 |
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165 | if (t_cur EQ t_ctr)
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166 | newflag = TRUE;
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167 |
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168 | se_disp(ep, D_FWD, gdstbc, 1);
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169 |
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170 | } else {
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171 |
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172 | DB_CMNT("ne_end - no space");
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173 | }
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174 |
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175 | DB_EXIT("ne_end");
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176 | return;
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177 | /* |
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178 |
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179 | */
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180 | } else if (nkdown GE 1) { /* process note entry in step mode */
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181 |
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182 | DB_CMNT("ne_end - log key up");
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183 |
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184 | if (0 EQ --nkdown) { /* if all keys are up ... */
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185 |
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186 | if (stepenb) {
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187 |
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188 | /* advance by the note weight */
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189 |
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190 | DB_CMNT("ne_end - advance weight");
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191 | fcend = fc_val + stepfrm[3][stepint];
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192 | fc_val += stepfrm[stepwgt][stepint];
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193 | sc_trek(fc_val);
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194 | sc_trak(fc_val);
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195 | DB_CMNT("ne_end - doing note ends");
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196 | }
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197 |
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198 | while (nelist) {
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199 |
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200 | nn = nelist->note; /* get note */
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201 | grp = nelist->group; /* get group */
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202 |
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203 | if (E_NULL NE (ep = (struct n_entry *)e_alc(E_SIZE1))) {
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204 |
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205 | DB_CMNT("ne_end - enter note end");
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206 | ep->e_time = t_cur;
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207 | ep->e_type = EV_NEND | 0x80;
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208 | ep->e_note = nn;
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209 | ep->e_group = grp;
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210 | ep->e_vel = SM_SCALE(64);
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211 |
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212 | p_cur = e_ins((struct s_entry *)ep,
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213 | ep_adj(p_cur, 0, t_cur))->e_fwd;
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214 |
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215 | se_disp(ep, D_FWD, gdstbc, 1);
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216 |
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217 | if (lstendc < NLSTENTS)
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218 | lstends[lstendc++] = ep;
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219 |
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220 | } else {
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221 |
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222 | DB_CMNT("ne_end - no space");
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223 | }
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224 | /* |
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225 |
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226 | */
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227 | DB_CMNT("ne_end - freeing nevent");
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228 | nx = nelist->nxt; /* get next nelist ptr */
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229 | nelist->nxt = nefree; /* free nelist entry */
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230 | nefree = nelist; /* ... */
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231 | nelist = nx; /* update nelist */
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232 | }
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233 |
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234 | lstflag = TRUE; /* indicate end of list */
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235 |
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236 | DB_CMNT("ne_end - note ends done");
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237 |
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238 | if (stepenb) {
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239 |
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240 | if (fc_val LT fcend) { /* advance to the interval */
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241 |
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242 | DB_CMNT("ne_end - advance interval");
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243 | fc_val = fcend;
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244 | sc_trek(fc_val);
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245 | sc_trak(fc_val);
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246 | }
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247 | }
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248 | }
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249 |
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250 | } else {
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251 |
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252 | nkdown = 0; /* no keys down */
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253 |
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254 | lstendc = 0; /* no step entries to delete */
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255 | lstbgnc = 0;
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256 | lstflag = FALSE;
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257 | }
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258 |
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259 | DB_EXIT("ne_end");
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260 | }
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261 |
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262 | /* |
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263 |
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264 | */
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265 |
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266 | /*
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267 | =============================================================================
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268 | ne_bgn() -- enter a note begin event
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269 | =============================================================================
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270 | */
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271 |
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272 | void ne_bgn(int16_t grp, int16_t key, int16_t vel)
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273 | {
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274 | register struct n_entry *ep;
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275 | register struct nevent *np;
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276 |
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277 | DB_ENTR("ne_bgn");
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278 |
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279 | /* must be recording into a group in record mode ... */
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280 |
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281 | if ((recsw NE 0) AND (grpmode[grp] EQ 2)) {
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282 |
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283 | DB_CMNT("ne_bgn - recording");
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284 |
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285 | /* make pointers point in the forward direction */
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286 |
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287 | if (sd EQ D_BAK)
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288 | chgsdf();
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289 |
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290 | if (se EQ D_BAK)
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291 | chgsef();
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292 |
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293 | if (lstflag) { /* cancel old list of notes */
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294 |
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295 | lstbgnc = 0;
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296 | lstendc = 0;
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297 | lstflag = FALSE;
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298 | }
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299 |
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300 | if (clksrc EQ CK_STEP) { /* step mode */
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301 |
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302 | DB_CMNT("ne_bgn - step");
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303 | ++nkdown; /* count keys down */
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304 |
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305 | if (nefree) { /* log a key closure */
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306 |
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307 | np = nefree;
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308 | nefree = np->nxt;
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309 | np->note = key;
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310 | np->group = grp;
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311 | np->nxt = nelist;
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312 | nelist = np;
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313 | DB_CMNT("ne_bgn - key logged");
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314 |
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315 | } else {
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316 |
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317 | DB_CMNT("ne_bgn - nefree empty");
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318 | }
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319 | }
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320 | /* |
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321 |
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322 | */
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323 | if (E_NULL NE (ep = (struct n_entry *)e_alc(E_SIZE1))) {
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324 |
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325 | DB_CMNT("ne_bgn - enter note begin");
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326 | ep->e_time = t_cur;
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327 | ep->e_type = EV_NBEG | 0x80;
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328 | ep->e_note = key;
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329 | ep->e_group = grp;
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330 | ep->e_vel = (clksrc EQ CK_STEP) ? SM_SCALE(64) : vel;
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331 |
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332 | p_cur = e_ins((struct s_entry *)ep,
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333 | ep_adj(p_cur, 0, t_cur))->e_fwd;
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334 |
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335 | se_disp(ep, D_FWD, gdstbc, 1);
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336 |
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337 | if (t_cur EQ t_ctr)
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338 | newflag = TRUE;
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339 |
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340 | if ((clksrc EQ CK_STEP) AND (lstbgnc < NLSTENTS))
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341 | lstbgns[lstbgnc++] = ep;
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342 |
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343 | } else {
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344 |
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345 | DB_CMNT("ne_bgn - no space");
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346 | }
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347 | }
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348 |
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349 | DB_EXIT("ne_bgn");
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350 | }
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351 |
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352 | /* |
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353 |
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354 | */
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355 |
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356 | /*
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357 | =============================================================================
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358 | showvel() -- display velocity for a group
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359 | =============================================================================
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360 | */
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361 |
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362 | void showvel(int16_t g, int16_t v)
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363 | {
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364 | int8_t buf[6];
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365 |
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366 | if (v_regs[5] & 0x0180)
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367 | vbank(0);
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368 |
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369 | lastvel[g] = v;
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370 |
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371 | sprintf(buf, "%03d", (v / 252));
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372 |
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373 | vputs(obj8, 5, (g * 5) + 6, buf, SDW11ATR);
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374 | }
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375 |
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376 | /* |
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377 |
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378 | */
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379 |
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380 | /*
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381 | =============================================================================
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382 | asgvce() -- assign a voice
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383 | =============================================================================
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384 | */
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385 |
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386 | void asgvce(int16_t grp, int16_t port, int16_t chan, int16_t key, int16_t vel)
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387 | {
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388 | register int16_t i;
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389 | register int16_t tv;
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390 | register int16_t vp;
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391 | register int16_t trg;
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392 | register int16_t aflag;
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393 | register struct nevent *np;
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394 | register struct n_entry *ep;
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395 |
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396 | DB_ENTR("asgvce");
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397 |
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398 | trg = (port << 11) + (chan << 7) + key; /* trigger number */
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399 | vp = lastvce[grp] + 1; /* voice to start with */
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400 | vp = (vp > 11) ? 0 : vp; /* ... (adjust into range) */
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401 |
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402 | /* |
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403 |
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404 | */
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405 |
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406 | DB_CMNT("asgvce - search unassgined");
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407 |
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408 | for (i = 12; i--; ) { /* search for unassigned voice */
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409 |
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410 | if ((vce2trg[vp] EQ -1) AND (vce2grp[vp] EQ (grp + 1))) {
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411 |
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412 | if ((ndisp EQ 2) AND velflag AND (NOT recsw))
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413 | showvel(grp, vel);
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414 |
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415 | lastvce[grp] = vp;
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416 | execkey(trg, tuntab[key], vp, 0);
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417 | DB_EXIT("asgvce - free voice");
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418 | return;
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419 | }
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420 |
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421 | if (++vp > 11)
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422 | vp = 0;
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423 | }
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424 |
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425 | DB_CMNT("asgvce - seach non-held");
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426 |
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427 | for (i = 12; i--; ) { /* search for non-held voice */
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428 |
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429 | tv = vce2trg[vp];
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430 |
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431 | if (tv EQ -1)
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432 | aflag = TRUE; /* OK - unassigned */
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433 | else if (0 EQ (tv & (MKEYHELD << 8)))
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434 | aflag = TRUE; /* OK - not held */
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435 | else
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436 | aflag = FALSE; /* NO - held */
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437 |
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438 | if (aflag AND (vce2grp[vp] EQ (grp + 1))) {
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439 |
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440 | if ((ins2grp[grp] & GTAG1) AND
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441 | (tv NE trg) AND (tv NE -1))
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442 | legato = 1;
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443 |
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444 | if ((ndisp EQ 2) AND velflag AND (NOT recsw))
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445 | showvel(grp, vel);
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446 |
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447 | lastvce[grp] = vp;
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448 | execkey(trg, tuntab[key], vp, 0);
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449 | DB_EXIT("asgvce - stolen voice");
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450 | return;
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451 | }
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452 |
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453 | if (++vp > 11)
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454 | vp = 0;
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455 | }
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456 |
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457 | DB_EXIT("asgvce - no voice");
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458 | }
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