[f40a309] | 1 | /*
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| 2 | =============================================================================
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| 3 | delpnts.c -- delete point(s) from (truncate) a function
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| 4 | Version 14 -- 1989-12-19 -- 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 DEBUGIT 0
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| 9 |
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| 10 | #define D_INSPNT 0 /* debug inspnt() */
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| 11 |
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[b28a12e] | 12 | #include "ram.h"
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[e225e77] | 13 |
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[f40a309] | 14 | #define PT_SIZE (sizeof (struct instpnt))
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| 15 |
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| 16 | #if DEBUGIT
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| 17 | short debugdf = 1;
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| 18 | #endif
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| 19 |
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| 20 | /* |
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| 21 |
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| 22 | */
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| 23 |
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| 24 | /*
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| 25 | =============================================================================
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| 26 | delpnts() -- deletes the current point and any points to the right
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| 27 | of it in the current function in the current voice.
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| 28 | =============================================================================
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| 29 | */
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[7258c6a] | 30 |
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[f40a309] | 31 | int16_t delpnts(void)
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| 32 | {
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[7258c6a] | 33 | register struct instpnt *pp;
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| 34 | register int8_t *pp1, *pp2;
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[f40a309] | 35 | register int16_t np, pt1, i, pif, cf;
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| 36 | struct idfnhdr *fp;
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[7258c6a] | 37 | struct instdef *vp;
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| 38 | uint16_t *fpu;
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[f40a309] | 39 | int16_t pt2, nmv, oldi;
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| 40 |
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| 41 | vp = &vbufs[curvce]; /* voice buffer pointer */
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| 42 | fp = &vp->idhfnc[curfunc]; /* function pointer */
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| 43 |
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| 44 | pif = 0x00FF & fp->idfpif; /* number of points in function */
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| 45 | np = pif - subj; /* number of points to delete */
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| 46 | pt1 = (0x00FF & fp->idfpt1) + subj; /* first point to delete */
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| 47 |
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| 48 | #if DEBUGIT
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| 49 | if (debugsw AND debugdf) {
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| 50 |
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| 51 | printf("delpnts(): curfunc = %d curvce = %d\n",
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| 52 | curfunc, curvce);
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| 53 |
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| 54 | printf("delpnts(): idfpt1=%d, pif=%d, np=%d, pt1=%d, vp=$%lX, fp=$%lX\n",
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| 55 | (0x00FF & fp->idfpt1), pif, np, pt1, vp, fp);
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| 56 | }
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| 57 | #endif
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| 58 |
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| 59 | if (np LE 0) /* have to delete at least 1 point */
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| 60 | return(FAILURE);
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| 61 |
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| 62 | if (subj GE pif) /* make sure point number is valid */
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| 63 | return(FAILURE);
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| 64 |
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| 65 | if ((pif - np) < 0) /* make sure we have enough points */
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| 66 | return(FAILURE);
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| 67 |
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| 68 | if ((subj + np) GE (pif + 1)) /* check the span */
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| 69 | return(FAILURE);
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| 70 |
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| 71 | pt2 = pt1 + np; /* move from point */
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| 72 | nmv = NIPNTS - pt2; /* move count */
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| 73 |
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| 74 | #if DEBUGIT
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| 75 | if (debugsw AND debugdf) {
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| 76 |
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| 77 | printf("delpnts(): pt2=%d, nmv=%d\n", pt2, nmv);
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| 78 |
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| 79 | printf(" fnc pif\n");
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| 80 |
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| 81 | for (cf = 0; cf < NFINST; cf++)
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| 82 | printf(" %3d %3d%s\n",
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| 83 | cf, vp->idhfnc[cf].idfpif,
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| 84 | (cf EQ curfunc) ? " <-- curfunc" : "");
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| 85 |
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| 86 | printf("\n");
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| 87 | }
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| 88 | #endif
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| 89 |
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| 90 | /* |
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| 91 |
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| 92 | */
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| 93 | oldi = setipl(FPU_DI); /* +++++ disable FPU interrupts +++++ */
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| 94 |
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| 95 | fpu = io_fpu + FPU_OFNC + (curvce << 8); /* get fpu base */
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| 96 |
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| 97 | for (i = 0; i < NFINST; i++) { /* stop all functions for this voice */
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| 98 |
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| 99 | fp = &vp->idhfnc[i]; /* point at the function */
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| 100 |
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| 101 | *(fpu + (fnoff[i] << 4) + FPU_TCTL) =
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[9519422] | 102 | (fp->idftmd = (fp->idftmd & ~3) | 1);
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[f40a309] | 103 | }
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| 104 |
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| 105 | fp = &vp->idhfnc[curfunc]; /* point at the function */
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| 106 |
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| 107 | if (subj) { /* deleting trailing points */
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| 108 |
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| 109 | /* move points down */
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| 110 |
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| 111 | pp1 = &vp->idhpnt[pt1];
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| 112 | pp2 = &vp->idhpnt[pt2];
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| 113 |
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| 114 | for (i = nmv * PT_SIZE; i > 0; i--)
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| 115 | *pp1++ = *pp2++;
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| 116 |
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| 117 | /* adjust total points remaining */
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| 118 |
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| 119 | vp->idhplft += np;
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| 120 |
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| 121 | /* adjust number of points in this function */
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| 122 |
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| 123 | vp->idhfnc[curfunc].idfpif -= np;
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| 124 |
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| 125 | /* adjust starting points in other functions */
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| 126 |
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| 127 | for (cf = curfunc + 1; cf < NFINST; cf++)
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| 128 | vp->idhfnc[cf].idfpt1 -= np;
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| 129 |
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| 130 | setipl(oldi); /* +++++ restore interrupts +++++ */
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| 131 |
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| 132 | edfunc(curfunc); /* set new current point */
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| 133 | subj -= 1;
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| 134 | /* |
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| 135 |
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| 136 | */
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| 137 | } else { /* deleting all points */
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| 138 |
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| 139 | /* reset first point in function */
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| 140 |
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| 141 | pp = &vp->idhpnt[fp->idfpt1];
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| 142 |
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| 143 | pp->iptim = FPU_MINT;
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| 144 | pp->ipval = finival[curfunc];
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| 145 | pp->ipvmlt = 0;
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| 146 | pp->ipvsrc = SM_NONE;
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| 147 | pp->ipact = AC_NULL;
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| 148 | pp->ippar1 = 0;
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| 149 | pp->ippar2 = 0;
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| 150 | pp->ippar3 = 0;
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| 151 |
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| 152 | /* adjust functions */
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| 153 |
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| 154 | if (np > 1) { /* if deleting more points than 1 ... */
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| 155 |
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| 156 | --nmv; /* one less point to move */
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| 157 | ++pt1; /* start one slot up */
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| 158 |
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| 159 | /* move points down */
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| 160 |
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| 161 | pp1 = &vp->idhpnt[pt1];
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| 162 | pp2 = &vp->idhpnt[pt2];
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| 163 |
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| 164 | for (i = nmv * PT_SIZE; i > 0; i--)
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| 165 | *pp1++ = *pp2++;
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| 166 |
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| 167 | /* adjust total points remaining */
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| 168 |
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| 169 | vp->idhplft += (np - 1);
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| 170 |
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| 171 | /* adjust number of points in this function */
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| 172 |
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| 173 | vp->idhfnc[curfunc].idfpif -= (np - 1);
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| 174 |
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| 175 | /* adjust starting points in other functions */
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| 176 |
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| 177 | for (cf = curfunc + 1; cf < NFINST; cf++)
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| 178 | vp->idhfnc[cf].idfpt1 -= (np - 1);
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| 179 | }
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| 180 |
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| 181 | setipl(oldi); /* restore interrupts */
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[9519422] | 182 |
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[f40a309] | 183 | edfunc(curfunc); /* make point 0 current */
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| 184 | subj = 0;
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| 185 | }
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| 186 |
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| 187 | /* |
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| 188 |
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| 189 | */
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| 190 | #if DEBUGIT
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| 191 | if (debugsw AND debugdf) {
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| 192 |
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| 193 | printf("delpnts(): plft = %3d pif = %3d subj = %3d\n",
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| 194 | vp->idhplft, vp->idhfnc[curfunc].idfpif, subj);
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| 195 |
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| 196 | printf(" fnc pif\n");
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| 197 |
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| 198 | for (cf = 0; cf < NFINST; cf++)
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| 199 | printf(" %3d %3d%s\n",
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| 200 | cf, vp->idhfnc[cf].idfpif,
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| 201 | (cf EQ curfunc) ? " <-- curfunc" : "");
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| 202 |
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| 203 | printf("\n");
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| 204 | }
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| 205 | #endif
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| 206 |
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| 207 | pntsel();
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| 208 | pntsv = 0;
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| 209 | showpt(1);
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| 210 | modinst();
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| 211 |
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| 212 | return(SUCCESS);
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| 213 | }
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| 214 |
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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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[7258c6a] | 220 | =============================================================================
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[f40a309] | 221 | inspnt() -- insert a new point into a function
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[7258c6a] | 222 | =============================================================================
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| 223 | */
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| 224 |
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[f40a309] | 225 | int16_t inspnt(struct instdef *ip, int16_t fn, int16_t inpnt)
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| 226 | {
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| 227 | register int8_t *fp1, *fp2;
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| 228 | register int16_t i, j, k, l, npts;
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| 229 | int16_t topnt, frompt, oldi;
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| 230 |
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| 231 | if (ip->idhplft EQ 0) /* see if instrument has points left */
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| 232 | return(FALSE);
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| 233 |
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| 234 | if (ip->idhfnc[fn].idfpif EQ 99) /* see if function is full */
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| 235 | return(FALSE);
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| 236 |
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| 237 | topnt = NIPNTS - ip->idhplft; /* calculate move parameters */
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| 238 | frompt = topnt - 1;
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| 239 | npts = frompt - inpnt;
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| 240 | i = topnt;
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| 241 | j = frompt;
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| 242 |
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| 243 | #if D_INSPNT
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| 244 | if (debugsw)
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| 245 | printf("inspnt(): fn=%d, in=%d, to=%d, from=%d, npts=%d, pif=%d\r\n",
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| 246 | fn, inpnt, topnt, frompt, npts, ip->idhfnc[fn].idfpif);
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| 247 | #endif
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| 248 |
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| 249 | /* |
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| 250 |
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| 251 | */
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| 252 | oldi = setipl(FPU_DI); /* disable FPU interrupts */
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| 253 |
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| 254 | /* ++++++++++++++++++++++++ FPU interrupts disabled +++++++++++++++++++++++++ */
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| 255 |
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| 256 | for (k = 0; k < npts; k++) { /* move things up */
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| 257 |
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| 258 | fp1 = &ip->idhpnt[i--];
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| 259 | fp2 = &ip->idhpnt[j--];
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| 260 |
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| 261 | for (l = 0; l < sizeof (struct instpnt); l++)
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| 262 | *fp1++ = *fp2++;
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| 263 | }
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| 264 |
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| 265 | for (i = fn + 1; i < NFINST; i++) { /* update point numbers */
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| 266 |
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| 267 | ++ip->idhfnc[i].idfpt1; /* first point */
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| 268 | ++ip->idhfnc[i].idfcpt; /* current point */
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| 269 | }
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| 270 |
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| 271 | setipl(oldi); /* restore interrupts */
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| 272 |
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| 273 | /* ++++++++++++++++++++++++++ Interrupts restored +++++++++++++++++++++++++++ */
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| 274 |
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| 275 | ++ip->idhfnc[fn].idfpif; /* update point totals */
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| 276 | --ip->idhplft;
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| 277 |
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| 278 | #if D_INSPNT
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| 279 | if (debugsw)
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[6262b5c] | 280 | printf("inspnt(): idfpif=%d, idhplft=%d\r\n",
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| 281 | ip->idhfnc[fn].idfpif, ip->idhplft);
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| 282 | #endif
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| 283 |
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| 284 | return(TRUE);
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| 285 | }
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| 286 |
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