[f40a309] | 1 | /*
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| 2 | =============================================================================
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| 3 | sendval.c -- MIDAS-VII -- FPU output and clear functions
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| 4 | Version 4 -- 1988-09-27 -- D.N. Lynx Crowe
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| 5 | =============================================================================
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| 6 | */
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| 7 |
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[6262b5c] | 8 | #include "all.h"
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[f40a309] | 9 |
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| 10 | /* functions defined elsewhere */
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| 11 |
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[7258c6a] | 12 | extern uint16_t tofpu(uint16_t time);
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[f40a309] | 13 |
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[7258c6a] | 14 | extern uint16_t setipl(uint16_t arg);
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[f40a309] | 15 |
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[e225e77] | 16 | extern int16_t addpch(int16_t p1, int16_t p2);
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| 17 | extern void clrpfl(void);
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| 18 | extern void fpuclr(void);
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| 19 | extern void l_init(int16_t stat, int16_t sig);
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| 20 | extern void setdyn(int16_t grp, int16_t dyn);
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| 21 | extern void setloc(int16_t grp, int16_t loc);
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| 22 | extern void settune(void);
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| 23 |
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[7258c6a] | 24 | extern int16_t amplval, ext_cv1, ext_cv2, ext_cv3, ext_cv4, ext_mod;
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| 25 | extern int16_t lstbgnc, lstendc, ps_intn, ps_rate, ps_dpth, sliders;
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[f40a309] | 26 |
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[7258c6a] | 27 | extern int16_t lastart[];
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| 28 | extern int16_t dyntab[];
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| 29 | extern int16_t expbit[];
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| 30 | extern int16_t fnoff[];
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| 31 | extern int16_t fp_resv[];
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| 32 | extern int16_t grpdyn[];
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| 33 | extern int16_t grploc[];
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| 34 | extern int16_t lastvce[];
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| 35 | extern int16_t prstab[];
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| 36 | extern int16_t vce2grp[];
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| 37 | extern int16_t vce2trg[];
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| 38 | extern int16_t veltab[];
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[f40a309] | 39 |
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[7258c6a] | 40 | extern int16_t sigtab[128][2];
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[f40a309] | 41 |
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[7258c6a] | 42 | extern int8_t keystat[];
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| 43 | extern int8_t mpsust[];
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| 44 | extern int8_t trgtab[];
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[f40a309] | 45 |
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| 46 | extern struct n_entry *lstbgns[NLSTENTS];
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| 47 | extern struct n_entry *lstends[NLSTENTS];
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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 |
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| 53 | /*
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| 54 | =============================================================================
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| 55 | sendval() -- send a value to a voice parameter
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| 56 | =============================================================================
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| 57 | */
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[7258c6a] | 58 |
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[f40a309] | 59 | void sendval(int16_t voice, int16_t par, int16_t ival)
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[7258c6a] | 60 | {
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| 61 | register uint16_t *fpu;
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| 62 | register int16_t oldi, val;
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| 63 | register int32_t ltmp;
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[f40a309] | 64 | int16_t nop;
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| 65 |
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| 66 | fpu = io_fpu + FPU_OFNC + (voice << 8) + (par << 4);
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| 67 |
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| 68 | switch (par) {
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| 69 |
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| 70 | case 1: /* freq 1 */
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| 71 | case 3: /* freq 2 */
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| 72 | case 5: /* freq 3 */
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| 73 | case 7: /* freq 4 */
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| 74 |
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| 75 | val = addpch(ival, 0);
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| 76 | break;
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| 77 |
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| 78 | case 4: /* location */
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| 79 |
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| 80 | val = (ival << 1) ^ 0x8000;
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| 81 | break;
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| 82 |
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| 83 | case 10: /* filter */
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[7258c6a] | 84 |
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[f40a309] | 85 | ltmp = ((int32_t)ival >> 1) + ((int32_t)ival >>2);
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[7258c6a] | 86 |
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| 87 | if (ltmp GT (int32_t)VALMAX)
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| 88 | ltmp = (int32_t)VALMAX;
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| 89 | else if (ltmp LT (int32_t)VALMIN)
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[f40a309] | 90 | ltmp = (int32_t)VALMIN;
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[7258c6a] | 91 |
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[f40a309] | 92 | val = (int16_t)ltmp;
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| 93 | break;
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| 94 | /* |
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| 95 |
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| 96 | */
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[7258c6a] | 97 | case 2: /* level */
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[f40a309] | 98 |
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| 99 | val = (((int16_t)ival >> 5) - 500) << 6;
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| 100 | break;
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| 101 |
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| 102 | default:
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| 103 |
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| 104 | val = ival;
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| 105 | }
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| 106 |
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| 107 | oldi = setipl(FPU_DI);
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| 108 |
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[7258c6a] | 109 | /* ++++++++++++++++++++++++++++ FPU interrupts disabled +++++++++++++++++++++ */
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[f40a309] | 110 |
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[7258c6a] | 111 | *(fpu + (int32_t)FPU_TNV0) = val;
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[f40a309] | 112 | ++nop; ++nop; ++nop;
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[7258c6a] | 113 | *(fpu + (int32_t)FPU_TNV1) = val;
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[f40a309] | 114 | ++nop; ++nop; ++nop;
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| 115 | *(fpu + (int32_t)FPU_TCTL) = 0x0015;
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| 116 |
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| 117 | setipl(oldi);
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| 118 |
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| 119 | /* ++++++++++++++++++++++++++++ Interrupts restored +++++++++++++++++++++++++ */
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| 120 |
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| 121 | }
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| 122 |
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| 123 | /* |
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| 124 |
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| 125 | */
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| 126 |
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| 127 | /*
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| 128 | =============================================================================
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| 129 | clearer() -- clear the FPU
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[7258c6a] | 130 | =============================================================================
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[f40a309] | 131 | */
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[7258c6a] | 132 |
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| 133 | void clearer(int16_t stat, int16_t sig)
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| 134 | {
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| 135 | register uint16_t *fpu;
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[f40a309] | 136 | register uint16_t fpexp, fpmant, fptime;
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| 137 | register int16_t oldi, i;
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| 138 | int16_t nop, olds;
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| 139 |
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| 140 | if (stat) {
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| 141 |
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| 142 | fp_resv[0] = 0x8300; /* amplitude (off) */
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| 143 | fp_resv[1] = (ps_intn * 10) << 5; /* intensity */
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| 144 | fp_resv[2] = (ps_rate * 10) << 5; /* sweep rate */
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| 145 | fp_resv[3] = (ps_dpth * 10) << 5; /* sweep depth */
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| 146 | fp_resv[4] = 0; /* - unused - */
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| 147 | fp_resv[5] = 0; /* - unused - */
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| 148 | fp_resv[6] = ext_cv3; /* CV-3 */
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| 149 | fp_resv[7] = 0; /* - unused - */
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| 150 | fp_resv[8] = ext_cv4; /* CV-4 */
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| 151 | fp_resv[9] = ext_mod; /* Aux Signal Mod */
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| 152 | fp_resv[10] = ext_cv2; /* CV-2 */
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| 153 | fp_resv[11] = ext_cv1; /* CV-1 */
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| 154 |
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| 155 | fpu = io_fpu + FPU_OFNC; /* setup to set slew rate */
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| 156 | fptime = tofpu(AMP_TIME);
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| 157 | fpexp = expbit[fptime & 0x000F];
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| 158 | fpmant = fptime & 0xFFF0;
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| 159 | /* |
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| 160 |
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| 161 | */
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| 162 | oldi = setipl(FPU_DI); /* disable FPU interrupts */
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| 163 |
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| 164 | /* ++++++++++++++++++++++++++++ FPU interrupts disabled +++++++++++++++++++++ */
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| 165 |
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| 166 | fpuclr(); /* reset the FPU to nominal */
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| 167 |
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| 168 | *(fpu + FPU_TMNT) = fpmant; /* set amplitude slew rate */
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| 169 | ++nop; ++nop;
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| 170 | *(fpu + FPU_TEXP) = fpexp;
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| 171 |
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| 172 | /* reset execution control tables */
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| 173 |
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| 174 | memset(trgtab, 0, NTRIGS); /* trigger table */
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| 175 | memset(keystat, 0, 24); /* local key status */
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| 176 |
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| 177 | memsetw(prstab, 0, NTRIGS); /* pressure table */
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| 178 | memsetw(veltab, SM_SCALE(64), NTRIGS); /* velocity table */
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| 179 |
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| 180 | clrpfl(); /* clear pendant functions */
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| 181 |
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| 182 | for (i = 0; i < 48; i++) /* sustain pedal table */
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| 183 | mpsust[i] = 0;
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| 184 |
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| 185 | for (i = 0; i < 12; i++) {
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| 186 |
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| 187 | vce2trg[i] = -1; /* voice to trigger table */
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| 188 | lastvce[i] = 0; /* last voice used table */
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| 189 | }
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| 190 |
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| 191 | olds = sliders; /* reset articulation pots */
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| 192 | sliders = LS_PRMTR;
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| 193 | l_init(1, 0);
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| 194 | sliders = LS_OTHER;
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| 195 | l_init(1, 0);
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| 196 | sliders = olds;
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| 197 |
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| 198 | setipl(oldi); /* restore interrupts */
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| 199 |
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| 200 | /* ++++++++++++++++++++++++++++ Interrupts restored +++++++++++++++++++++++++ */
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| 201 |
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| 202 | /* |
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| 203 |
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| 204 | */
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| 205 | lstbgnc = 0; /* reset last note begin count */
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[7848656] | 206 | lstendc = 0; /* reset last note end count */
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[f40a309] | 207 |
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| 208 | memsetw(lstbgns, 0, (NLSTENTS << 1)); /* clear begin table */
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| 209 | memsetw(lstends, 0, (NLSTENTS << 1)); /* clear end table */
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| 210 |
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| 211 | /* re-establish dynamics and locations */
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| 212 |
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| 213 | for (i = 0; i < 12; i++) {
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| 214 |
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| 215 | setdyn(i, grpdyn[i]);
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| 216 | setloc(i, grploc[i]);
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| 217 | }
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[6262b5c] | 218 |
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| 219 | settune(); /* set tuning */
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| 220 | sendval(0, 0, amplval); /* set amplitude */
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| 221 | }
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| 222 | }
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| 223 |
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