[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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[7258c6a] | 23 | int16_t seqdspn;
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[f40a309] | 24 |
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[7258c6a] | 25 | int16_t rtab[] = { 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F,
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[f40a309] | 26 | 0x003F, 0x003F, 0x003F };
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| 27 |
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| 28 | /* |
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| 29 |
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| 30 | */
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| 31 |
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| 32 | /*
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| 33 | =============================================================================
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| 34 | evaltv() -- evaluate a typed value
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| 35 | =============================================================================
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| 36 | */
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[7258c6a] | 37 |
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[f40a309] | 38 | uint16_t evaltv(uint16_t dat)
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| 39 | {
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| 40 | switch (SQ_MTYP & dat) {
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| 41 |
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| 42 | case SQ_REG: /* register contents */
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| 43 |
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| 44 | return(sregval[SQ_MVAL & dat]);
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| 45 |
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| 46 | case SQ_VAL: /* constant value */
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| 47 |
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| 48 | return(SQ_MVAL & dat);
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| 49 |
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| 50 | case SQ_VLT: /* voltage input */
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| 51 |
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| 52 | return(0);
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| 53 |
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| 54 | case SQ_RND: /* random number */
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[7258c6a] | 55 |
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[f40a309] | 56 | return((int16_t)rand24() & rtab[SQ_MVAL & dat]);
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| 57 |
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| 58 | default: /* something weird got in here ... */
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| 59 |
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| 60 | return(0);
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| 61 | }
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| 62 | }
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| 63 |
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| 64 | /* |
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| 65 |
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| 66 | */
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| 67 |
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| 68 | /*
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| 69 | =============================================================================
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| 70 | dosqact() -- do a sequence action
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| 71 | =============================================================================
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[7258c6a] | 72 | */
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[f40a309] | 73 |
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[7258c6a] | 74 | int16_t dosqact(uint16_t seq, uint16_t act, uint16_t dat)
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| 75 | {
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[f40a309] | 76 | register uint16_t obj, val;
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| 77 | register int16_t sv;
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| 78 |
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| 79 | obj = (SQ_MOBJ & act) >> 8;
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| 80 | val = SQ_MVAL & dat;
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| 81 |
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| 82 | switch (SQ_MACT & act) {
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| 83 |
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| 84 | case SQ_NULL: /* null action */
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| 85 |
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| 86 | return(0);
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| 87 |
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| 88 | case SQ_CKEY: /* Key closure */
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| 89 |
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| 90 | putwq(&ptefifo, dat & TRG_MASK);
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| 91 | return(0);
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| 92 |
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| 93 | case SQ_RKEY: /* Key release */
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| 94 |
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| 95 | putwq(&ptefifo, dat | 0x8000);
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| 96 | return(0);
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| 97 |
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| 98 | case SQ_TKEY: /* Key transient */
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| 99 |
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| 100 | putwq(&ptefifo, dat & TRG_MASK); /* closure */
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| 101 | putwq(&ptefifo, dat | 0x8000); /* release */
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| 102 | return(0);
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| 103 |
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| 104 | case SQ_IKEY: /* If key active */
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| 105 |
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| 106 | if (trgtab[TRG_MASK & dat])
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| 107 | return(0);
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| 108 | else
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| 109 | return(1);
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| 110 | /* |
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| 111 |
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| 112 | */
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| 113 | case SQ_STRG: /* Trigger on */
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| 114 |
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| 115 | trstate[val] = 1;
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| 116 | putwq(&ptefifo, (0x1100 | val));
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| 117 | seqdupd |= (1 << val);
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| 118 | return(0);
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| 119 |
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| 120 | case SQ_CTRG: /* Trigger off */
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| 121 |
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| 122 | trstate[val] = 0;
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| 123 | seqdupd |= (1 << val);
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| 124 | return(0);
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| 125 |
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| 126 | case SQ_TTRG: /* Trigger toggle */
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| 127 |
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| 128 | trstate[val] = trstate[val] ? 0 : 1;
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| 129 |
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| 130 | if (trstate[val])
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| 131 | putwq(&ptefifo, (0x1100 | val));
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| 132 |
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| 133 | seqdupd |= (1 << val);
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| 134 | return(0);
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| 135 |
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| 136 | case SQ_ITRG: /* If trigger active */
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[9519422] | 137 |
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[f40a309] | 138 | return(trstate[val] ? 0 : 1);
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| 139 | /* |
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| 140 |
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| 141 | */
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| 142 | case SQ_SREG: /* Set register */
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| 143 |
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| 144 | sregval[obj] = evaltv(dat);
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| 145 | seqdupd |= (1 << obj);
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| 146 | return(0);
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| 147 |
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| 148 | case SQ_AREG: /* Increment register */
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| 149 |
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| 150 | if (dat & SQ_MFLG) {
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| 151 |
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| 152 | sv = sregval[obj] - evaltv(dat);
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| 153 |
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| 154 | if (sv < 0)
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| 155 | sv = 0;
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| 156 |
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| 157 | sregval[obj] = sv;
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| 158 |
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| 159 | } else {
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| 160 |
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| 161 | sv = sregval[obj] + evaltv(dat);
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| 162 |
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| 163 | if (sv > 99)
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| 164 | sv = 99;
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| 165 |
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| 166 | sregval[obj] = sv;
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| 167 |
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| 168 | }
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| 169 |
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| 170 | seqdupd |= (1 << obj);
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| 171 | return(0);
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| 172 |
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| 173 | case SQ_IREQ: /* If register = */
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| 174 |
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| 175 | val = evaltv(dat);
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| 176 |
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| 177 | if (sregval[obj] EQ val)
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| 178 | return(0);
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| 179 | else
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| 180 | return(1);
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| 181 |
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| 182 | case SQ_IRLT: /* If register < */
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| 183 |
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| 184 | val = evaltv(dat);
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| 185 |
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| 186 | if (sregval[obj] < val)
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| 187 | return(0);
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| 188 | else
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| 189 | return(1);
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| 190 |
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| 191 | case SQ_IRGT: /* If register > */
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| 192 |
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| 193 | val = evaltv(dat);
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| 194 |
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| 195 | if (sregval[obj] > val)
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| 196 | return(0);
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| 197 | else
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| 198 | return(1);
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| 199 | /* |
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| 200 |
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| 201 | */
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| 202 | case SQ_ISTM: /* If stimulus active */
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| 203 |
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| 204 | if (trgtab[TRG_MASK & seqstim[seq]])
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| 205 | return(0);
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| 206 | else
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| 207 | return(1);
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| 208 |
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| 209 | case SQ_JUMP: /* Jump to sequence line */
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| 210 |
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| 211 | seqline[seq] = dat;
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| 212 | seqtime[seq] = seqtab[dat].seqtime;
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| 213 | seqflag[seq] |= SQF_CLK;
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| 214 |
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| 215 | seqdupd |= (1 << seq);
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| 216 | return(-1);
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| 217 |
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| 218 |
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| 219 | case SQ_STOP: /* Stop sequence */
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| 220 | default:
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| 221 |
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| 222 | seqflag[seq] = 0;
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| 223 | seqtime[seq] = 0;
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| 224 |
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| 225 | seqdupd |= (1 << seq);
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| 226 | return(-1);
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| 227 |
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| 228 | }
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| 229 | }
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| 230 |
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| 231 | /* |
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| 232 |
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| 233 | */
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| 234 |
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[7258c6a] | 235 | /*
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[f40a309] | 236 | =============================================================================
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[7258c6a] | 237 | sqexec() -- execute a line for a sequence
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[f40a309] | 238 | =============================================================================
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[7258c6a] | 239 | */
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[f40a309] | 240 |
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| 241 | void sqexec(uint16_t seq)
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| 242 | {
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| 243 | register uint16_t act, dat, line;
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| 244 | register struct seqent *sp;
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| 245 | register int16_t rc;
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| 246 |
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| 247 | line = seqline[seq];
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| 248 | sp = &seqtab[line];
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| 249 |
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| 250 | act = sp->seqact1; /* do Action 1 */
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| 251 | dat = sp->seqdat1;
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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 1 $%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 2 */
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| 262 | goto act3;
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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 | act = sp->seqact2; /* do Action 2 */
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| 267 | dat = sp->seqdat2;
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| 268 |
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| 269 | rc = dosqact(seq, act, dat);
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| 270 |
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| 271 | #if DEBUGSX
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| 272 | if (debugsw AND debugsx)
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| 273 | printf("sqexec(%02u): Line %03u Act 2 $%04.4X $%04.4X $%04.4X %d\n",
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| 274 | seq, line, act, dat, seqflag[seq], rc);
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| 275 | #endif
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| 276 |
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| 277 | if (rc EQ 1) /* skip action 3 */
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| 278 | goto nxtline;
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| 279 | else if (rc EQ -1) /* jump or stop */
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| 280 | return;
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| 281 |
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| 282 | act3:
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| 283 | act = sp->seqact3; /* do Action 3 */
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| 284 | dat = sp->seqdat3;
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| 285 |
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| 286 | rc = dosqact(seq, act, dat);
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| 287 |
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| 288 | #if DEBUGSX
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| 289 | if (debugsw AND debugsx)
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| 290 | printf("sqexec(%02u): Line %03u Act 3 $%04.4X $%04.4X $%04.4X %d\n",
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| 291 | seq, line, act, dat, seqflag[seq], rc);
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| 292 | #endif
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| 293 |
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| 294 | if (rc EQ -1) /* jump or stop */
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| 295 | return;
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| 296 |
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| 297 | nxtline: /* increment line counter */
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| 298 |
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| 299 | if (++seqline[seq] GE NSLINES)
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| 300 | seqline[seq] = 0;
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| 301 |
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| 302 | seqtime[seq] = seqtab[seqline[seq]].seqtime;
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| 303 | seqflag[seq] |= SQF_CLK;
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| 304 |
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| 305 | #if DEBUGSX
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| 306 | if (debugsw AND debugsx)
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| 307 | printf("sqexec(%02u): Next %03u %5u $%04.4X\n",
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| 308 | seq, line, seqtime[seq], seqflag[seq]);
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| 309 | #endif
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| 310 |
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| 311 | seqdupd |= (1 << seq);
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| 312 | }
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| 313 |
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| 314 | /* |
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| 315 |
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| 316 | */
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[0580615] | 317 |
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[f40a309] | 318 | /*
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[7258c6a] | 319 | =============================================================================
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| 320 | seqproc() -- process sequences
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| 321 | =============================================================================
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| 322 | */
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[f40a309] | 323 |
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| 324 | void seqproc(void)
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| 325 | {
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| 326 | register uint16_t oldsr, seq;
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| 327 | register int16_t dspn;
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| 328 | register uint16_t *fp;
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| 329 | int8_t linbuf[66];
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| 330 |
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| 331 | if (0 EQ timers[SQTIMER]) {
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| 332 |
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| 333 | for (seq = 0; seq < 16; seq++) {
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| 334 |
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| 335 | fp = &seqflag[seq];
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| 336 |
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| 337 | if ( (SQF_RUN|SQF_CLK) EQ
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| 338 | ((SQF_RUN|SQF_CLK) & *fp) ) {
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| 339 |
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| 340 | if (seqtime[seq]) {
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| 341 |
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| 342 | if (0 EQ --seqtime[seq])
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| 343 | *fp &= ~SQF_CLK;
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| 344 |
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| 345 | } else {
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| 346 |
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| 347 | *fp &= ~SQF_CLK;
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| 348 | }
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| 349 | }
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| 350 | }
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| 351 |
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| 352 | oldsr = setsr(0x2700);
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| 353 | timers[SQTIMER] = SEQTIME;
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| 354 | setsr(oldsr);
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| 355 | }
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| 356 |
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| 357 | for (seq = 0; seq < 16; seq++)
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| 358 | if (SQF_RUN EQ ((SQF_RUN|SQF_CLK) & seqflag[seq]) )
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| 359 | sqexec(seq);
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| 360 | /* |
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| 361 |
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| 362 | */
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| 363 | if (((ndisp EQ 1) OR (ndisp EQ 3)) AND dsp_ok AND seqdupd) {
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| 364 |
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| 365 | #if DEBUGSX
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| 366 | if (debugsw AND debugsx)
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| 367 | printf("seqproc(): ndisp = %d seqdupd = $%04.4X\n",
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| 368 | ndisp, seqdupd);
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| 369 | #endif
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| 370 | if (seqdupd & (1 << seqdspn)) {
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| 371 |
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| 372 | dspn = seqdspn;
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| 373 |
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| 374 | if (v_regs[5] & 0x0180)
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| 375 | vbank(0);
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| 376 |
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| 377 | sprintf(linbuf, " %03d %02d %c ",
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| 378 | seqline[dspn],
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| 379 | sregval[dspn],
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| 380 | '0' + trstate[dspn]);
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| 381 |
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| 382 | vvputsv(obj10, 16, PDSEQFG, PDSEQBG,
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| 383 | dspn, 1, linbuf, 14, 14, cg3);
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| 384 |
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| 385 | #if UPD_LINE
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| 386 | sprintf(linbuf, "%02d", dspn + 1);
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| 387 |
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| 388 | vvputsv(obj10, 16,
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| 389 | (seqflag[dspn] & SQF_RUN) ?
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| 390 | PDSEQRN : PDSEQFG, PDSEQBG,
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| 391 | dspn, 2, linbuf, 14, 14, cg3);
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| 392 | #else
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| 393 | vsetcv(obj10, dspn, 2,
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| 394 | ( ( (seqflag[dspn] & SQF_RUN) ?
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| 395 | PDSEQRN : PDSEQFG) << 4) | PDSEQBG, 16);
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[6262b5c] | 396 | #endif
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| 397 | seqdupd &= ~(1 << dspn);
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| 398 | }
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| 399 |
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| 400 | if (++seqdspn > 15)
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| 401 | seqdspn = 0;
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| 402 | }
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| 403 | }
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| 404 |
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