[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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| 13 | #include "stddefs.h"
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| 14 | #include "hwdefs.h"
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| 15 | #include "graphdef.h"
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| 16 | #include "vsdd.h"
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| 17 | #include "wordq.h"
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| 18 | #include "patch.h"
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| 19 | #include "timers.h"
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| 20 |
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| 21 | #include "midas.h"
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| 22 | #include "ptdisp.h"
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| 23 |
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| 24 | #if (DEBUGSP|DEBUGSX)
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| 25 | extern short debugsw;
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| 26 | #endif
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| 27 |
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| 28 | #if DEBUGSP
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| 29 | short debugsp = 1;
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| 30 | #endif
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| 31 |
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| 32 | #if DEBUGSX
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| 33 | short debugsx = 1;
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| 34 | #endif
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| 35 |
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[7258c6a] | 36 | extern uint16_t setsr(uint16_t sr);
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| 37 | extern int32_t rand24(void);
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[f40a309] | 38 |
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[7258c6a] | 39 | extern int8_t trgtab[];
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[f40a309] | 40 |
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[7258c6a] | 41 | extern int16_t curslin;
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| 42 | extern int16_t dsp_ok;
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| 43 | extern int16_t ndisp;
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[f40a309] | 44 |
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[7258c6a] | 45 | extern uint16_t seqdupd;
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[f40a309] | 46 |
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[7258c6a] | 47 | extern uint16_t *obj10;
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[f40a309] | 48 |
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[7258c6a] | 49 | extern int16_t cg3[][256];
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[f40a309] | 50 |
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| 51 | extern struct wordq ptefifo;
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| 52 |
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[7258c6a] | 53 | int16_t seqdspn;
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[f40a309] | 54 |
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[7258c6a] | 55 | int16_t rtab[] = { 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F,
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[f40a309] | 56 | 0x003F, 0x003F, 0x003F };
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| 57 |
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| 58 | /* |
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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 | evaltv() -- evaluate a typed value
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| 65 | =============================================================================
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| 66 | */
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[7258c6a] | 67 |
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[f40a309] | 68 | uint16_t evaltv(uint16_t dat)
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| 69 | {
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| 70 | switch (SQ_MTYP & dat) {
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| 71 |
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| 72 | case SQ_REG: /* register contents */
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| 73 |
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| 74 | return(sregval[SQ_MVAL & dat]);
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| 75 |
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| 76 | case SQ_VAL: /* constant value */
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| 77 |
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| 78 | return(SQ_MVAL & dat);
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| 79 |
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| 80 | case SQ_VLT: /* voltage input */
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| 81 |
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| 82 | return(0);
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| 83 |
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| 84 | case SQ_RND: /* random number */
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[7258c6a] | 85 |
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[f40a309] | 86 | return((int16_t)rand24() & rtab[SQ_MVAL & dat]);
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| 87 |
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| 88 | default: /* something weird got in here ... */
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| 89 |
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| 90 | return(0);
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| 91 | }
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| 92 | }
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| 93 |
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| 94 | /* |
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| 95 |
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| 96 | */
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| 97 |
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| 98 | /*
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| 99 | =============================================================================
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| 100 | dosqact() -- do a sequence action
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| 101 | =============================================================================
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[7258c6a] | 102 | */
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[f40a309] | 103 |
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[7258c6a] | 104 | int16_t dosqact(uint16_t seq, uint16_t act, uint16_t dat)
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| 105 | {
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[f40a309] | 106 | register uint16_t obj, val;
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| 107 | register int16_t sv;
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| 108 |
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| 109 | obj = (SQ_MOBJ & act) >> 8;
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| 110 | val = SQ_MVAL & dat;
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| 111 |
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| 112 | switch (SQ_MACT & act) {
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| 113 |
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| 114 | case SQ_NULL: /* null action */
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| 115 |
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| 116 | return(0);
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| 117 |
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| 118 | case SQ_CKEY: /* Key closure */
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| 119 |
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| 120 | putwq(&ptefifo, dat & TRG_MASK);
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| 121 | return(0);
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| 122 |
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| 123 | case SQ_RKEY: /* Key release */
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| 124 |
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| 125 | putwq(&ptefifo, dat | 0x8000);
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| 126 | return(0);
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| 127 |
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| 128 | case SQ_TKEY: /* Key transient */
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| 129 |
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| 130 | putwq(&ptefifo, dat & TRG_MASK); /* closure */
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| 131 | putwq(&ptefifo, dat | 0x8000); /* release */
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| 132 | return(0);
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| 133 |
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| 134 | case SQ_IKEY: /* If key active */
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| 135 |
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| 136 | if (trgtab[TRG_MASK & dat])
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| 137 | return(0);
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| 138 | else
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| 139 | return(1);
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| 140 | /* |
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| 141 |
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| 142 | */
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| 143 | case SQ_STRG: /* Trigger on */
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| 144 |
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| 145 | trstate[val] = 1;
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| 146 | putwq(&ptefifo, (0x1100 | val));
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| 147 | seqdupd |= (1 << val);
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| 148 | return(0);
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| 149 |
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| 150 | case SQ_CTRG: /* Trigger off */
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| 151 |
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| 152 | trstate[val] = 0;
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| 153 | seqdupd |= (1 << val);
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| 154 | return(0);
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| 155 |
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| 156 | case SQ_TTRG: /* Trigger toggle */
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| 157 |
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| 158 | trstate[val] = trstate[val] ? 0 : 1;
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| 159 |
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| 160 | if (trstate[val])
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| 161 | putwq(&ptefifo, (0x1100 | val));
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| 162 |
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| 163 | seqdupd |= (1 << val);
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| 164 | return(0);
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| 165 |
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| 166 | case SQ_ITRG: /* If trigger active */
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[9519422] | 167 |
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[f40a309] | 168 | return(trstate[val] ? 0 : 1);
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| 169 | /* |
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| 170 |
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| 171 | */
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| 172 | case SQ_SREG: /* Set register */
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| 173 |
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| 174 | sregval[obj] = evaltv(dat);
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| 175 | seqdupd |= (1 << obj);
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| 176 | return(0);
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| 177 |
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| 178 | case SQ_AREG: /* Increment register */
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| 179 |
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| 180 | if (dat & SQ_MFLG) {
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| 181 |
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| 182 | sv = sregval[obj] - evaltv(dat);
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| 183 |
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| 184 | if (sv < 0)
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| 185 | sv = 0;
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| 186 |
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| 187 | sregval[obj] = sv;
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| 188 |
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| 189 | } else {
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| 190 |
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| 191 | sv = sregval[obj] + evaltv(dat);
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| 192 |
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| 193 | if (sv > 99)
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| 194 | sv = 99;
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| 195 |
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| 196 | sregval[obj] = sv;
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| 197 |
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| 198 | }
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| 199 |
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| 200 | seqdupd |= (1 << obj);
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| 201 | return(0);
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| 202 |
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| 203 | case SQ_IREQ: /* If register = */
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| 204 |
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| 205 | val = evaltv(dat);
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| 206 |
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| 207 | if (sregval[obj] EQ val)
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| 208 | return(0);
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| 209 | else
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| 210 | return(1);
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| 211 |
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| 212 | case SQ_IRLT: /* If register < */
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| 213 |
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| 214 | val = evaltv(dat);
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| 215 |
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| 216 | if (sregval[obj] < val)
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| 217 | return(0);
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| 218 | else
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| 219 | return(1);
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| 220 |
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| 221 | case SQ_IRGT: /* If register > */
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| 222 |
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| 223 | val = evaltv(dat);
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| 224 |
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| 225 | if (sregval[obj] > val)
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| 226 | return(0);
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| 227 | else
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| 228 | return(1);
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| 229 | /* |
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| 230 |
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| 231 | */
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| 232 | case SQ_ISTM: /* If stimulus active */
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| 233 |
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| 234 | if (trgtab[TRG_MASK & seqstim[seq]])
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| 235 | return(0);
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| 236 | else
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| 237 | return(1);
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| 238 |
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| 239 | case SQ_JUMP: /* Jump to sequence line */
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| 240 |
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| 241 | seqline[seq] = dat;
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| 242 | seqtime[seq] = seqtab[dat].seqtime;
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| 243 | seqflag[seq] |= SQF_CLK;
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| 244 |
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| 245 | seqdupd |= (1 << seq);
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| 246 | return(-1);
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| 247 |
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| 248 |
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| 249 | case SQ_STOP: /* Stop sequence */
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| 250 | default:
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| 251 |
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| 252 | seqflag[seq] = 0;
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| 253 | seqtime[seq] = 0;
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| 254 |
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| 255 | seqdupd |= (1 << seq);
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| 256 | return(-1);
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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 | /* |
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| 262 |
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| 263 | */
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| 264 |
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[7258c6a] | 265 | /*
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[f40a309] | 266 | =============================================================================
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[7258c6a] | 267 | sqexec() -- execute a line for a sequence
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[f40a309] | 268 | =============================================================================
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[7258c6a] | 269 | */
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[f40a309] | 270 |
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| 271 | void sqexec(uint16_t seq)
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| 272 | {
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| 273 | register uint16_t act, dat, line;
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| 274 | register struct seqent *sp;
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| 275 | register int16_t rc;
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| 276 |
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| 277 | line = seqline[seq];
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| 278 | sp = &seqtab[line];
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| 279 |
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| 280 | act = sp->seqact1; /* do Action 1 */
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| 281 | dat = sp->seqdat1;
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| 282 |
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| 283 | rc = dosqact(seq, act, dat);
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| 284 |
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| 285 | #if DEBUGSX
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| 286 | if (debugsw AND debugsx)
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| 287 | printf("sqexec(%02u): Line %03u Act 1 $%04.4X $%04.4X $%04.4X %d\n",
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| 288 | seq, line, act, dat, seqflag[seq], rc);
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| 289 | #endif
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| 290 |
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| 291 | if (rc EQ 1) /* skip action 2 */
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| 292 | goto act3;
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| 293 | else if (rc EQ -1) /* jump or stop */
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| 294 | return;
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| 295 |
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| 296 | act = sp->seqact2; /* do Action 2 */
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| 297 | dat = sp->seqdat2;
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| 298 |
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| 299 | rc = dosqact(seq, act, dat);
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| 300 |
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| 301 | #if DEBUGSX
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| 302 | if (debugsw AND debugsx)
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| 303 | printf("sqexec(%02u): Line %03u Act 2 $%04.4X $%04.4X $%04.4X %d\n",
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| 304 | seq, line, act, dat, seqflag[seq], rc);
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| 305 | #endif
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| 306 |
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| 307 | if (rc EQ 1) /* skip action 3 */
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| 308 | goto nxtline;
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| 309 | else if (rc EQ -1) /* jump or stop */
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| 310 | return;
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| 311 |
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| 312 | act3:
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| 313 | act = sp->seqact3; /* do Action 3 */
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| 314 | dat = sp->seqdat3;
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| 315 |
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| 316 | rc = dosqact(seq, act, dat);
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| 317 |
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| 318 | #if DEBUGSX
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| 319 | if (debugsw AND debugsx)
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| 320 | printf("sqexec(%02u): Line %03u Act 3 $%04.4X $%04.4X $%04.4X %d\n",
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| 321 | seq, line, act, dat, seqflag[seq], rc);
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| 322 | #endif
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| 323 |
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| 324 | if (rc EQ -1) /* jump or stop */
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| 325 | return;
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| 326 |
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| 327 | nxtline: /* increment line counter */
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| 328 |
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| 329 | if (++seqline[seq] GE NSLINES)
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| 330 | seqline[seq] = 0;
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| 331 |
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| 332 | seqtime[seq] = seqtab[seqline[seq]].seqtime;
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| 333 | seqflag[seq] |= SQF_CLK;
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| 334 |
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| 335 | #if DEBUGSX
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| 336 | if (debugsw AND debugsx)
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| 337 | printf("sqexec(%02u): Next %03u %5u $%04.4X\n",
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| 338 | seq, line, seqtime[seq], seqflag[seq]);
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| 339 | #endif
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| 340 |
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| 341 | seqdupd |= (1 << seq);
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| 342 | }
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| 343 |
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| 344 | /* |
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| 345 |
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| 346 | */
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[0580615] | 347 |
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[f40a309] | 348 | /*
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[7258c6a] | 349 | =============================================================================
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| 350 | seqproc() -- process sequences
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| 351 | =============================================================================
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| 352 | */
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[f40a309] | 353 |
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| 354 | void seqproc(void)
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| 355 | {
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| 356 | register uint16_t oldsr, seq;
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| 357 | register int16_t dspn;
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| 358 | register uint16_t *fp;
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| 359 | int8_t linbuf[66];
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| 360 |
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| 361 | if (0 EQ timers[SQTIMER]) {
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| 362 |
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| 363 | for (seq = 0; seq < 16; seq++) {
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| 364 |
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| 365 | fp = &seqflag[seq];
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| 366 |
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| 367 | if ( (SQF_RUN|SQF_CLK) EQ
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| 368 | ((SQF_RUN|SQF_CLK) & *fp) ) {
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| 369 |
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| 370 | if (seqtime[seq]) {
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| 371 |
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| 372 | if (0 EQ --seqtime[seq])
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| 373 | *fp &= ~SQF_CLK;
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| 374 |
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| 375 | } else {
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| 376 |
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| 377 | *fp &= ~SQF_CLK;
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| 378 | }
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| 379 | }
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| 380 | }
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| 381 |
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| 382 | oldsr = setsr(0x2700);
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| 383 | timers[SQTIMER] = SEQTIME;
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| 384 | setsr(oldsr);
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| 385 | }
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| 386 |
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| 387 | for (seq = 0; seq < 16; seq++)
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| 388 | if (SQF_RUN EQ ((SQF_RUN|SQF_CLK) & seqflag[seq]) )
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| 389 | sqexec(seq);
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| 390 | /* |
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| 391 |
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| 392 | */
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| 393 | if (((ndisp EQ 1) OR (ndisp EQ 3)) AND dsp_ok AND seqdupd) {
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| 394 |
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| 395 | #if DEBUGSX
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| 396 | if (debugsw AND debugsx)
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| 397 | printf("seqproc(): ndisp = %d seqdupd = $%04.4X\n",
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| 398 | ndisp, seqdupd);
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| 399 | #endif
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| 400 | if (seqdupd & (1 << seqdspn)) {
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| 401 |
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| 402 | dspn = seqdspn;
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| 403 |
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| 404 | if (v_regs[5] & 0x0180)
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| 405 | vbank(0);
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| 406 |
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| 407 | sprintf(linbuf, " %03d %02d %c ",
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| 408 | seqline[dspn],
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| 409 | sregval[dspn],
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| 410 | '0' + trstate[dspn]);
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| 411 |
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| 412 | vvputsv(obj10, 16, PDSEQFG, PDSEQBG,
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| 413 | dspn, 1, linbuf, 14, 14, cg3);
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| 414 |
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| 415 | #if UPD_LINE
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| 416 | sprintf(linbuf, "%02d", dspn + 1);
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| 417 |
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| 418 | vvputsv(obj10, 16,
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| 419 | (seqflag[dspn] & SQF_RUN) ?
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| 420 | PDSEQRN : PDSEQFG, PDSEQBG,
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| 421 | dspn, 2, linbuf, 14, 14, cg3);
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| 422 | #else
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| 423 | vsetcv(obj10, dspn, 2,
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| 424 | ( ( (seqflag[dspn] & SQF_RUN) ?
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| 425 | PDSEQRN : PDSEQFG) << 4) | PDSEQBG, 16);
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| 426 | #endif
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| 427 | seqdupd &= ~(1 << dspn);
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| 428 | }
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| 429 |
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| 430 | if (++seqdspn > 15)
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| 431 | seqdspn = 0;
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| 432 | }
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| 433 | }
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