[f40a309] | 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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[b28a12e] | 12 | #include "ram.h"
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[f40a309] | 13 |
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| 14 | /* |
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| 15 |
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| 16 | */
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| 17 |
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| 18 | /*
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| 19 | =============================================================================
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| 20 | clrnl() -- clear note list
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| 21 | =============================================================================
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| 22 | */
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[0580615] | 23 |
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[f40a309] | 24 | void clrnl(void)
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[7258c6a] | 25 | {
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[f40a309] | 26 | register int16_t i;
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| 27 |
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| 28 | DB_ENTR("clrnl");
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| 29 |
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| 30 | for (i = 0; i < NNEVTS - 1; i++) {
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| 31 |
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| 32 | nevents[i].nxt = &nevents[i + 1];
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| 33 | nevents[i].note = 0;
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| 34 | nevents[i].group = 0;
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| 35 | }
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| 36 |
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| 37 | nevents[NNEVTS - 1].nxt = (struct nevent *)0L;
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| 38 |
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| 39 | nelist = (struct nevent *)0L;
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| 40 | nefree = &nevents[0];
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| 41 | nkdown = 0;
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| 42 |
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| 43 | DB_EXIT("clrnl");
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| 44 | }
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| 45 |
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| 46 | /* |
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| 47 |
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| 48 | */
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| 49 |
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| 50 | /*
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| 51 | =============================================================================
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| 52 | ne_end() -- enter a note end event
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| 53 | =============================================================================
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[7258c6a] | 54 | */
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[f40a309] | 55 |
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[7258c6a] | 56 | void ne_end(int16_t trg, int16_t grp)
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| 57 | {
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[f40a309] | 58 | register int16_t nn;
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| 59 | register int32_t fcend;
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| 60 | register struct nevent *nx;
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| 61 | register struct n_entry *ep;
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| 62 |
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| 63 | DB_ENTR("ne_end");
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| 64 |
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| 65 | /* must be recording into a voice in record mode ... */
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| 66 |
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| 67 | if ((recsw EQ 0) OR (grpmode[grp] NE 2)) {
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| 68 |
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| 69 | DB_EXIT("ne_end");
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| 70 | return; /* ... or, we're done */
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| 71 | }
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| 72 |
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| 73 | DB_CMNT("ne_end - recording");
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| 74 |
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| 75 | /* make pointers point in the forward direction */
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| 76 |
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| 77 | if (sd EQ D_BAK)
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| 78 | chgsdf();
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| 79 |
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| 80 | if (se EQ D_BAK)
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| 81 | chgsef();
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| 82 | /* |
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| 83 |
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| 84 | */
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| 85 | nn = trg & 0x007F; /* note number */
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| 86 |
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| 87 | if (clksrc NE CK_STEP) { /* not in step mode */
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| 88 |
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| 89 | DB_CMNT("ne_end - non-step");
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| 90 |
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| 91 | if (E_NULL NE (ep = (struct n_entry *)e_alc(E_SIZE1))) {
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| 92 |
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| 93 | DB_CMNT("ne_end - enter note end");
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| 94 | ep->e_time = t_cur;
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| 95 | ep->e_type = EV_NEND | 0x80;
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| 96 | ep->e_note = nn;
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| 97 | ep->e_group = grp;
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| 98 | ep->e_vel = SM_SCALE(64);
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| 99 |
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| 100 | p_cur = e_ins((struct s_entry *)ep,
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| 101 | ep_adj(p_cur, 0, t_cur))->e_fwd;
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| 102 |
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| 103 | if (t_cur EQ t_ctr)
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| 104 | newflag = TRUE;
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| 105 |
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| 106 | se_disp(ep, D_FWD, gdstbc, 1);
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| 107 |
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| 108 | } else {
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| 109 |
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| 110 | DB_CMNT("ne_end - no space");
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| 111 | }
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| 112 |
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| 113 | DB_EXIT("ne_end");
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| 114 | return;
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| 115 | /* |
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| 116 |
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| 117 | */
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| 118 | } else if (nkdown GE 1) { /* process note entry in step mode */
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| 119 |
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| 120 | DB_CMNT("ne_end - log key up");
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| 121 |
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| 122 | if (0 EQ --nkdown) { /* if all keys are up ... */
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| 123 |
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| 124 | if (stepenb) {
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| 125 |
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| 126 | /* advance by the note weight */
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| 127 |
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| 128 | DB_CMNT("ne_end - advance weight");
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| 129 | fcend = fc_val + stepfrm[3][stepint];
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| 130 | fc_val += stepfrm[stepwgt][stepint];
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| 131 | sc_trek(fc_val);
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| 132 | sc_trak(fc_val);
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| 133 | DB_CMNT("ne_end - doing note ends");
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| 134 | }
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| 135 |
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| 136 | while (nelist) {
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| 137 |
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| 138 | nn = nelist->note; /* get note */
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| 139 | grp = nelist->group; /* get group */
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| 140 |
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| 141 | if (E_NULL NE (ep = (struct n_entry *)e_alc(E_SIZE1))) {
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| 142 |
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| 143 | DB_CMNT("ne_end - enter note end");
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| 144 | ep->e_time = t_cur;
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| 145 | ep->e_type = EV_NEND | 0x80;
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| 146 | ep->e_note = nn;
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| 147 | ep->e_group = grp;
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| 148 | ep->e_vel = SM_SCALE(64);
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| 149 |
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| 150 | p_cur = e_ins((struct s_entry *)ep,
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| 151 | ep_adj(p_cur, 0, t_cur))->e_fwd;
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| 152 |
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| 153 | se_disp(ep, D_FWD, gdstbc, 1);
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| 154 |
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| 155 | if (lstendc < NLSTENTS)
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| 156 | lstends[lstendc++] = ep;
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| 157 |
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| 158 | } else {
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| 159 |
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| 160 | DB_CMNT("ne_end - no space");
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| 161 | }
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| 162 | /* |
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| 163 |
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| 164 | */
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| 165 | DB_CMNT("ne_end - freeing nevent");
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| 166 | nx = nelist->nxt; /* get next nelist ptr */
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| 167 | nelist->nxt = nefree; /* free nelist entry */
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| 168 | nefree = nelist; /* ... */
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| 169 | nelist = nx; /* update nelist */
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| 170 | }
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| 171 |
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| 172 | lstflag = TRUE; /* indicate end of list */
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| 173 |
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| 174 | DB_CMNT("ne_end - note ends done");
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| 175 |
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| 176 | if (stepenb) {
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| 177 |
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| 178 | if (fc_val LT fcend) { /* advance to the interval */
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| 179 |
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| 180 | DB_CMNT("ne_end - advance interval");
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| 181 | fc_val = fcend;
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| 182 | sc_trek(fc_val);
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| 183 | sc_trak(fc_val);
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| 184 | }
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| 185 | }
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| 186 | }
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| 187 |
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| 188 | } else {
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| 189 |
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| 190 | nkdown = 0; /* no keys down */
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| 191 |
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| 192 | lstendc = 0; /* no step entries to delete */
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| 193 | lstbgnc = 0;
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| 194 | lstflag = FALSE;
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| 195 | }
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| 196 |
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| 197 | DB_EXIT("ne_end");
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| 198 | }
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| 199 |
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| 200 | /* |
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| 201 |
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| 202 | */
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| 203 |
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[7258c6a] | 204 | /*
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[f40a309] | 205 | =============================================================================
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| 206 | ne_bgn() -- enter a note begin event
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| 207 | =============================================================================
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| 208 | */
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| 209 |
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| 210 | void ne_bgn(int16_t grp, int16_t key, int16_t vel)
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| 211 | {
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| 212 | register struct n_entry *ep;
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| 213 | register struct nevent *np;
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| 214 |
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| 215 | DB_ENTR("ne_bgn");
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| 216 |
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| 217 | /* must be recording into a group in record mode ... */
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| 218 |
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| 219 | if ((recsw NE 0) AND (grpmode[grp] EQ 2)) {
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| 220 |
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| 221 | DB_CMNT("ne_bgn - recording");
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| 222 |
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| 223 | /* make pointers point in the forward direction */
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| 224 |
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| 225 | if (sd EQ D_BAK)
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| 226 | chgsdf();
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| 227 |
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| 228 | if (se EQ D_BAK)
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| 229 | chgsef();
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| 230 |
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| 231 | if (lstflag) { /* cancel old list of notes */
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| 232 |
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| 233 | lstbgnc = 0;
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| 234 | lstendc = 0;
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| 235 | lstflag = FALSE;
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| 236 | }
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| 237 |
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| 238 | if (clksrc EQ CK_STEP) { /* step mode */
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| 239 |
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| 240 | DB_CMNT("ne_bgn - step");
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| 241 | ++nkdown; /* count keys down */
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| 242 |
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| 243 | if (nefree) { /* log a key closure */
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| 244 |
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| 245 | np = nefree;
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| 246 | nefree = np->nxt;
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| 247 | np->note = key;
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| 248 | np->group = grp;
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| 249 | np->nxt = nelist;
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| 250 | nelist = np;
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| 251 | DB_CMNT("ne_bgn - key logged");
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| 252 |
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| 253 | } else {
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| 254 |
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| 255 | DB_CMNT("ne_bgn - nefree empty");
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| 256 | }
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| 257 | }
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| 258 | /* |
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| 259 |
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| 260 | */
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| 261 | if (E_NULL NE (ep = (struct n_entry *)e_alc(E_SIZE1))) {
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| 262 |
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| 263 | DB_CMNT("ne_bgn - enter note begin");
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| 264 | ep->e_time = t_cur;
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| 265 | ep->e_type = EV_NBEG | 0x80;
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| 266 | ep->e_note = key;
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| 267 | ep->e_group = grp;
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| 268 | ep->e_vel = (clksrc EQ CK_STEP) ? SM_SCALE(64) : vel;
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| 269 |
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| 270 | p_cur = e_ins((struct s_entry *)ep,
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| 271 | ep_adj(p_cur, 0, t_cur))->e_fwd;
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| 272 |
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| 273 | se_disp(ep, D_FWD, gdstbc, 1);
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| 274 |
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| 275 | if (t_cur EQ t_ctr)
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| 276 | newflag = TRUE;
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| 277 |
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| 278 | if ((clksrc EQ CK_STEP) AND (lstbgnc < NLSTENTS))
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| 279 | lstbgns[lstbgnc++] = ep;
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| 280 |
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| 281 | } else {
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| 282 |
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| 283 | DB_CMNT("ne_bgn - no space");
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| 284 | }
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| 285 | }
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| 286 |
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| 287 | DB_EXIT("ne_bgn");
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| 288 | }
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| 289 |
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| 290 | /* |
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| 291 |
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[7258c6a] | 292 | */
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[f40a309] | 293 |
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[7258c6a] | 294 | /*
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[f40a309] | 295 | =============================================================================
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| 296 | showvel() -- display velocity for a group
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| 297 | =============================================================================
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| 298 | */
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| 299 |
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| 300 | void showvel(int16_t g, int16_t v)
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| 301 | {
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| 302 | int8_t buf[6];
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| 303 |
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| 304 | if (v_regs[5] & 0x0180)
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| 305 | vbank(0);
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| 306 |
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| 307 | lastvel[g] = v;
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| 308 |
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| 309 | sprintf(buf, "%03d", (v / 252));
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| 310 |
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| 311 | vputs(obj8, 5, (g * 5) + 6, buf, SDW11ATR);
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| 312 | }
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| 313 |
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| 314 | /* |
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[7258c6a] | 315 |
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[f40a309] | 316 | */
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[7258c6a] | 317 |
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| 318 | /*
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| 319 | =============================================================================
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| 320 | asgvce() -- assign a voice
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| 321 | =============================================================================
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[f40a309] | 322 | */
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| 323 |
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| 324 | void asgvce(int16_t grp, int16_t port, int16_t chan, int16_t key, int16_t vel)
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| 325 | {
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| 326 | register int16_t i;
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| 327 | register int16_t tv;
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| 328 | register int16_t vp;
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| 329 | register int16_t trg;
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| 330 | register int16_t aflag;
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| 331 | register struct nevent *np;
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| 332 | register struct n_entry *ep;
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| 333 |
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| 334 | DB_ENTR("asgvce");
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| 335 |
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| 336 | trg = (port << 11) + (chan << 7) + key; /* trigger number */
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| 337 | vp = lastvce[grp] + 1; /* voice to start with */
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| 338 | vp = (vp > 11) ? 0 : vp; /* ... (adjust into range) */
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| 339 |
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| 340 | /* |
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| 341 |
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| 342 | */
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| 343 |
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| 344 | DB_CMNT("asgvce - search unassgined");
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| 345 |
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| 346 | for (i = 12; i--; ) { /* search for unassigned voice */
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| 347 |
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| 348 | if ((vce2trg[vp] EQ -1) AND (vce2grp[vp] EQ (grp + 1))) {
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| 349 |
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| 350 | if ((ndisp EQ 2) AND velflag AND (NOT recsw))
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| 351 | showvel(grp, vel);
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| 352 |
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| 353 | lastvce[grp] = vp;
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| 354 | execkey(trg, tuntab[key], vp, 0);
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| 355 | DB_EXIT("asgvce - free voice");
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| 356 | return;
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| 357 | }
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| 358 |
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| 359 | if (++vp > 11)
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| 360 | vp = 0;
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| 361 | }
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| 362 |
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| 363 | DB_CMNT("asgvce - seach non-held");
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| 364 |
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| 365 | for (i = 12; i--; ) { /* search for non-held voice */
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| 366 |
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| 367 | tv = vce2trg[vp];
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| 368 |
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| 369 | if (tv EQ -1)
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| 370 | aflag = TRUE; /* OK - unassigned */
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| 371 | else if (0 EQ (tv & (MKEYHELD << 8)))
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| 372 | aflag = TRUE; /* OK - not held */
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| 373 | else
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| 374 | aflag = FALSE; /* NO - held */
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| 375 |
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| 376 | if (aflag AND (vce2grp[vp] EQ (grp + 1))) {
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[7848656] | 377 |
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[f40a309] | 378 | if ((ins2grp[grp] & GTAG1) AND
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| 379 | (tv NE trg) AND (tv NE -1))
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| 380 | legato = 1;
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| 381 |
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| 382 | if ((ndisp EQ 2) AND velflag AND (NOT recsw))
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| 383 | showvel(grp, vel);
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| 384 |
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[7848656] | 385 | lastvce[grp] = vp;
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[f40a309] | 386 | execkey(trg, tuntab[key], vp, 0);
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[6262b5c] | 387 | DB_EXIT("asgvce - stolen voice");
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| 388 | return;
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| 389 | }
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| 390 |
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| 391 | if (++vp > 11)
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| 392 | vp = 0;
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| 393 | }
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| 394 |
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| 395 | DB_EXIT("asgvce - no voice");
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| 396 | }
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| 397 |
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