[f40a309] | 1 | /*
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| 2 | =============================================================================
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| 3 | sqexec.c -- MIDAS-VII sequence action execution code
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| 4 | Version 12 -- 1988-12-13 -- D.N. Lynx Crowe
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| 5 | =============================================================================
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| 6 | */
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| 7 |
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| 8 | #define DEBUGSX 0
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| 9 | #define DEBUGSP 0
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| 10 |
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| 11 | #define UPD_LINE 1
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| 12 |
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[b28a12e] | 13 | #include "ram.h"
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[f40a309] | 14 |
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| 15 | #if DEBUGSP
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| 16 | short debugsp = 1;
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| 17 | #endif
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| 18 |
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| 19 | #if DEBUGSX
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| 20 | short debugsx = 1;
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| 21 | #endif
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| 22 |
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[26553e2] | 23 | int16_t seqdspn;
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[f40a309] | 24 |
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[26553e2] | 25 | uint16_t rtab[] = {
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| 26 | 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F,
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| 27 | 0x003F, 0x003F, 0x003F
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| 28 | };
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[f40a309] | 29 |
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| 30 | /*
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| 31 | =============================================================================
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| 32 | evaltv() -- evaluate a typed value
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| 33 | =============================================================================
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| 34 | */
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| 35 |
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[7258c6a] | 36 | uint16_t evaltv(uint16_t dat)
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[f40a309] | 37 | {
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| 38 | switch (SQ_MTYP & dat) {
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| 39 |
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| 40 | case SQ_REG: /* register contents */
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| 41 |
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| 42 | return(sregval[SQ_MVAL & dat]);
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| 43 |
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| 44 | case SQ_VAL: /* constant value */
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| 45 |
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| 46 | return(SQ_MVAL & dat);
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| 47 |
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| 48 | case SQ_VLT: /* voltage input */
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| 49 |
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| 50 | return(0);
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| 51 |
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| 52 | case SQ_RND: /* random number */
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| 53 |
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[26553e2] | 54 | return((uint16_t)rand24() & rtab[SQ_MVAL & dat]);
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[f40a309] | 55 |
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| 56 | default: /* something weird got in here ... */
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| 57 |
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| 58 | return(0);
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| 59 | }
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| 60 | }
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| 61 |
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| 62 | /*
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| 63 | =============================================================================
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| 64 | dosqact() -- do a sequence action
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| 65 | =============================================================================
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| 66 | */
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| 67 |
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[26553e2] | 68 | int16_t dosqact(int16_t seq, uint16_t act, uint16_t dat)
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[f40a309] | 69 | {
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[7258c6a] | 70 | register uint16_t obj, val;
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| 71 | register int16_t sv;
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[f40a309] | 72 |
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| 73 | obj = (SQ_MOBJ & act) >> 8;
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| 74 | val = SQ_MVAL & dat;
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| 75 |
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| 76 | switch (SQ_MACT & act) {
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| 77 |
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| 78 | case SQ_NULL: /* null action */
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| 79 |
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| 80 | return(0);
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| 81 |
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| 82 | case SQ_CKEY: /* Key closure */
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| 83 |
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| 84 | putwq(&ptefifo, dat & TRG_MASK);
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| 85 | return(0);
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| 86 |
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| 87 | case SQ_RKEY: /* Key release */
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| 88 |
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| 89 | putwq(&ptefifo, dat | 0x8000);
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| 90 | return(0);
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| 91 |
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| 92 | case SQ_TKEY: /* Key transient */
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| 93 |
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| 94 | putwq(&ptefifo, dat & TRG_MASK); /* closure */
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| 95 | putwq(&ptefifo, dat | 0x8000); /* release */
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| 96 | return(0);
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| 97 |
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| 98 | case SQ_IKEY: /* If key active */
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| 99 |
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| 100 | if (trgtab[TRG_MASK & dat])
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| 101 | return(0);
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| 102 | else
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| 103 | return(1);
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[fa38804] | 104 |
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[f40a309] | 105 | case SQ_STRG: /* Trigger on */
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| 106 |
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| 107 | trstate[val] = 1;
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| 108 | putwq(&ptefifo, (0x1100 | val));
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[26553e2] | 109 | seqdupd |= ((uint16_t)1 << val);
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[f40a309] | 110 | return(0);
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| 111 |
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| 112 | case SQ_CTRG: /* Trigger off */
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| 113 |
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| 114 | trstate[val] = 0;
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[26553e2] | 115 | seqdupd |= ((uint16_t)1 << val);
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[f40a309] | 116 | return(0);
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| 117 |
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| 118 | case SQ_TTRG: /* Trigger toggle */
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| 119 |
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| 120 | trstate[val] = trstate[val] ? 0 : 1;
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| 121 |
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| 122 | if (trstate[val])
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| 123 | putwq(&ptefifo, (0x1100 | val));
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| 124 |
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[26553e2] | 125 | seqdupd |= ((uint16_t)1 << val);
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[f40a309] | 126 | return(0);
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| 127 |
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| 128 | case SQ_ITRG: /* If trigger active */
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| 129 |
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| 130 | return(trstate[val] ? 0 : 1);
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[fa38804] | 131 |
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[f40a309] | 132 | case SQ_SREG: /* Set register */
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| 133 |
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| 134 | sregval[obj] = evaltv(dat);
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[26553e2] | 135 | seqdupd |= ((uint16_t)1 << obj);
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[f40a309] | 136 | return(0);
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| 137 |
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| 138 | case SQ_AREG: /* Increment register */
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| 139 |
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| 140 | if (dat & SQ_MFLG) {
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| 141 |
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[26553e2] | 142 | sv = (int16_t)(sregval[obj] - evaltv(dat));
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[f40a309] | 143 |
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| 144 | if (sv < 0)
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| 145 | sv = 0;
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| 146 |
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[26553e2] | 147 | sregval[obj] = (uint16_t)sv;
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[f40a309] | 148 |
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| 149 | } else {
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| 150 |
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[26553e2] | 151 | sv = (int16_t)(sregval[obj] + evaltv(dat));
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[f40a309] | 152 |
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| 153 | if (sv > 99)
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| 154 | sv = 99;
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| 155 |
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[26553e2] | 156 | sregval[obj] = (uint16_t)sv;
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[f40a309] | 157 |
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| 158 | }
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| 159 |
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[26553e2] | 160 | seqdupd |= ((uint16_t)1 << obj);
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[f40a309] | 161 | return(0);
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| 162 |
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| 163 | case SQ_IREQ: /* If register = */
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| 164 |
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| 165 | val = evaltv(dat);
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| 166 |
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| 167 | if (sregval[obj] EQ val)
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| 168 | return(0);
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| 169 | else
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| 170 | return(1);
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| 171 |
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| 172 | case SQ_IRLT: /* If register < */
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| 173 |
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| 174 | val = evaltv(dat);
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| 175 |
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| 176 | if (sregval[obj] < val)
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| 177 | return(0);
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| 178 | else
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| 179 | return(1);
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| 180 |
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| 181 | case SQ_IRGT: /* If register > */
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| 182 |
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| 183 | val = evaltv(dat);
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| 184 |
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| 185 | if (sregval[obj] > val)
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| 186 | return(0);
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| 187 | else
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| 188 | return(1);
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[fa38804] | 189 |
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[f40a309] | 190 | case SQ_ISTM: /* If stimulus active */
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| 191 |
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| 192 | if (trgtab[TRG_MASK & seqstim[seq]])
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| 193 | return(0);
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| 194 | else
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| 195 | return(1);
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| 196 |
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| 197 | case SQ_JUMP: /* Jump to sequence line */
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| 198 |
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[26553e2] | 199 | seqline[seq] = (int16_t)dat;
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[f40a309] | 200 | seqtime[seq] = seqtab[dat].seqtime;
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| 201 | seqflag[seq] |= SQF_CLK;
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| 202 |
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[26553e2] | 203 | seqdupd |= ((uint16_t)1 << seq);
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[f40a309] | 204 | return(-1);
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| 205 |
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| 206 |
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| 207 | case SQ_STOP: /* Stop sequence */
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| 208 | default:
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| 209 |
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| 210 | seqflag[seq] = 0;
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| 211 | seqtime[seq] = 0;
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| 212 |
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[26553e2] | 213 | seqdupd |= ((uint16_t)1 << seq);
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[f40a309] | 214 | return(-1);
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| 215 |
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| 216 | }
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| 217 | }
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| 218 |
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| 219 | /*
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| 220 | =============================================================================
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| 221 | sqexec() -- execute a line for a sequence
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| 222 | =============================================================================
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| 223 | */
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| 224 |
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[26553e2] | 225 | void sqexec(int16_t seq)
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[f40a309] | 226 | {
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[26553e2] | 227 | register uint16_t act, dat;
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[f40a309] | 228 | register struct seqent *sp;
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[26553e2] | 229 | register int16_t line, rc;
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[f40a309] | 230 |
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| 231 | line = seqline[seq];
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| 232 | sp = &seqtab[line];
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| 233 |
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| 234 | act = sp->seqact1; /* do Action 1 */
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| 235 | dat = sp->seqdat1;
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| 236 |
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| 237 | rc = dosqact(seq, act, dat);
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| 238 |
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| 239 | #if DEBUGSX
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| 240 | if (debugsw AND debugsx)
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| 241 | printf("sqexec(%02u): Line %03u Act 1 $%04.4X $%04.4X $%04.4X %d\n",
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| 242 | seq, line, act, dat, seqflag[seq], rc);
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| 243 | #endif
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| 244 |
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| 245 | if (rc EQ 1) /* skip action 2 */
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| 246 | goto act3;
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| 247 | else if (rc EQ -1) /* jump or stop */
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| 248 | return;
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| 249 |
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| 250 | act = sp->seqact2; /* do Action 2 */
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| 251 | dat = sp->seqdat2;
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| 252 |
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| 253 | rc = dosqact(seq, act, dat);
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| 254 |
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| 255 | #if DEBUGSX
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| 256 | if (debugsw AND debugsx)
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| 257 | printf("sqexec(%02u): Line %03u Act 2 $%04.4X $%04.4X $%04.4X %d\n",
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| 258 | seq, line, act, dat, seqflag[seq], rc);
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| 259 | #endif
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| 260 |
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| 261 | if (rc EQ 1) /* skip action 3 */
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| 262 | goto nxtline;
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| 263 | else if (rc EQ -1) /* jump or stop */
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| 264 | return;
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| 265 |
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| 266 | act3:
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| 267 | act = sp->seqact3; /* do Action 3 */
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| 268 | dat = sp->seqdat3;
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| 269 |
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| 270 | rc = dosqact(seq, act, dat);
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| 271 |
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| 272 | #if DEBUGSX
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| 273 | if (debugsw AND debugsx)
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| 274 | printf("sqexec(%02u): Line %03u Act 3 $%04.4X $%04.4X $%04.4X %d\n",
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| 275 | seq, line, act, dat, seqflag[seq], rc);
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| 276 | #endif
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| 277 |
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| 278 | if (rc EQ -1) /* jump or stop */
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| 279 | return;
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| 280 |
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| 281 | nxtline: /* increment line counter */
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| 282 |
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| 283 | if (++seqline[seq] GE NSLINES)
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| 284 | seqline[seq] = 0;
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| 285 |
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| 286 | seqtime[seq] = seqtab[seqline[seq]].seqtime;
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| 287 | seqflag[seq] |= SQF_CLK;
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| 288 |
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| 289 | #if DEBUGSX
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| 290 | if (debugsw AND debugsx)
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| 291 | printf("sqexec(%02u): Next %03u %5u $%04.4X\n",
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| 292 | seq, line, seqtime[seq], seqflag[seq]);
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| 293 | #endif
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| 294 |
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[26553e2] | 295 | seqdupd |= ((uint16_t)1 << seq);
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[f40a309] | 296 | }
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| 297 |
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| 298 | /*
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| 299 | =============================================================================
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| 300 | seqproc() -- process sequences
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| 301 | =============================================================================
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| 302 | */
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| 303 |
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[0580615] | 304 | void seqproc(void)
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[f40a309] | 305 | {
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[26553e2] | 306 | register uint16_t oldsr;
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| 307 | register int16_t seq, dspn;
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[7258c6a] | 308 | register uint16_t *fp;
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| 309 | int8_t linbuf[66];
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[f40a309] | 310 |
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| 311 | if (0 EQ timers[SQTIMER]) {
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| 312 |
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| 313 | for (seq = 0; seq < 16; seq++) {
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| 314 |
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| 315 | fp = &seqflag[seq];
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| 316 |
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| 317 | if ( (SQF_RUN|SQF_CLK) EQ
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| 318 | ((SQF_RUN|SQF_CLK) & *fp) ) {
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| 319 |
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| 320 | if (seqtime[seq]) {
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| 321 |
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| 322 | if (0 EQ --seqtime[seq])
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[26553e2] | 323 | *fp &= ~(uint16_t)SQF_CLK;
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[f40a309] | 324 |
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| 325 | } else {
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| 326 |
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[26553e2] | 327 | *fp &= ~(uint16_t)SQF_CLK;
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[f40a309] | 328 | }
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| 329 | }
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| 330 | }
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| 331 |
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| 332 | oldsr = setsr(0x2700);
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| 333 | timers[SQTIMER] = SEQTIME;
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| 334 | setsr(oldsr);
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| 335 | }
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| 336 |
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| 337 | for (seq = 0; seq < 16; seq++)
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| 338 | if (SQF_RUN EQ ((SQF_RUN|SQF_CLK) & seqflag[seq]) )
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| 339 | sqexec(seq);
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[fa38804] | 340 |
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[f40a309] | 341 | if (((ndisp EQ 1) OR (ndisp EQ 3)) AND dsp_ok AND seqdupd) {
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| 342 |
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| 343 | #if DEBUGSX
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| 344 | if (debugsw AND debugsx)
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| 345 | printf("seqproc(): ndisp = %d seqdupd = $%04.4X\n",
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| 346 | ndisp, seqdupd);
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| 347 | #endif
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[26553e2] | 348 | if (seqdupd & ((uint16_t)1 << seqdspn)) {
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[f40a309] | 349 |
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| 350 | dspn = seqdspn;
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| 351 |
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| 352 | if (v_regs[5] & 0x0180)
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| 353 | vbank(0);
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| 354 |
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| 355 | sprintf(linbuf, " %03d %02d %c ",
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| 356 | seqline[dspn],
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| 357 | sregval[dspn],
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| 358 | '0' + trstate[dspn]);
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| 359 |
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| 360 | vvputsv(obj10, 16, PDSEQFG, PDSEQBG,
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| 361 | dspn, 1, linbuf, 14, 14, cg3);
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| 362 |
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| 363 | #if UPD_LINE
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| 364 | sprintf(linbuf, "%02d", dspn + 1);
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| 365 |
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| 366 | vvputsv(obj10, 16,
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| 367 | (seqflag[dspn] & SQF_RUN) ?
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| 368 | PDSEQRN : PDSEQFG, PDSEQBG,
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| 369 | dspn, 2, linbuf, 14, 14, cg3);
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| 370 | #else
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| 371 | vsetcv(obj10, dspn, 2,
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| 372 | ( ( (seqflag[dspn] & SQF_RUN) ?
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| 373 | PDSEQRN : PDSEQFG) << 4) | PDSEQBG, 16);
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| 374 | #endif
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[26553e2] | 375 | seqdupd &= ~((uint16_t)1 << dspn);
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[f40a309] | 376 | }
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| 377 |
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| 378 | if (++seqdspn > 15)
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| 379 | seqdspn = 0;
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| 380 | }
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| 381 | }
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[6262b5c] | 382 |
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