source: buchla-68k/ram/delpnts.c@ 39a696b

Last change on this file since 39a696b was 6262b5c, checked in by Thomas Lopatic <thomas@…>, 7 years ago

Added include files for global functions and variables.
  • Property mode set to 100644
File size: 6.4 KB
Line 
1/*
2 =============================================================================
3 delpnts.c -- delete point(s) from (truncate) a function
4 Version 14 -- 1989-12-19 -- D.N. Lynx Crowe
5 =============================================================================
6*/
7
8#define DEBUGIT 0
9
10#define D_INSPNT 0 /* debug inspnt() */
11
12#include "all.h"
13
14extern int16_t edfunc(int16_t n);
15extern uint16_t setipl(uint16_t arg);
16extern void modinst(void);
17extern void pntsel(void);
18extern void showpt(int16_t q);
19
20#define PT_SIZE (sizeof (struct instpnt))
21
22#if DEBUGIT
23extern short debugsw;
24
25short debugdf = 1;
26#endif
27
28extern int16_t curfunc;
29extern int16_t curvce;
30extern int16_t pntsv;
31extern int16_t subj;
32
33extern int16_t finival[];
34extern int16_t fnoff[];
35
36extern struct instdef vbufs[];
37
38/*
39
40*/
41
42/*
43 =============================================================================
44 delpnts() -- deletes the current point and any points to the right
45 of it in the current function in the current voice.
46 =============================================================================
47*/
48
49int16_t delpnts(void)
50{
51 register struct instpnt *pp;
52 register int8_t *pp1, *pp2;
53 register int16_t np, pt1, i, pif, cf;
54 struct idfnhdr *fp;
55 struct instdef *vp;
56 uint16_t *fpu;
57 int16_t pt2, nmv, oldi;
58
59 vp = &vbufs[curvce]; /* voice buffer pointer */
60 fp = &vp->idhfnc[curfunc]; /* function pointer */
61
62 pif = 0x00FF & fp->idfpif; /* number of points in function */
63 np = pif - subj; /* number of points to delete */
64 pt1 = (0x00FF & fp->idfpt1) + subj; /* first point to delete */
65
66#if DEBUGIT
67 if (debugsw AND debugdf) {
68
69 printf("delpnts(): curfunc = %d curvce = %d\n",
70 curfunc, curvce);
71
72 printf("delpnts(): idfpt1=%d, pif=%d, np=%d, pt1=%d, vp=$%lX, fp=$%lX\n",
73 (0x00FF & fp->idfpt1), pif, np, pt1, vp, fp);
74 }
75#endif
76
77 if (np LE 0) /* have to delete at least 1 point */
78 return(FAILURE);
79
80 if (subj GE pif) /* make sure point number is valid */
81 return(FAILURE);
82
83 if ((pif - np) < 0) /* make sure we have enough points */
84 return(FAILURE);
85
86 if ((subj + np) GE (pif + 1)) /* check the span */
87 return(FAILURE);
88
89 pt2 = pt1 + np; /* move from point */
90 nmv = NIPNTS - pt2; /* move count */
91
92#if DEBUGIT
93 if (debugsw AND debugdf) {
94
95 printf("delpnts(): pt2=%d, nmv=%d\n", pt2, nmv);
96
97 printf(" fnc pif\n");
98
99 for (cf = 0; cf < NFINST; cf++)
100 printf(" %3d %3d%s\n",
101 cf, vp->idhfnc[cf].idfpif,
102 (cf EQ curfunc) ? " <-- curfunc" : "");
103
104 printf("\n");
105 }
106#endif
107
108/*
109
110*/
111 oldi = setipl(FPU_DI); /* +++++ disable FPU interrupts +++++ */
112
113 fpu = io_fpu + FPU_OFNC + (curvce << 8); /* get fpu base */
114
115 for (i = 0; i < NFINST; i++) { /* stop all functions for this voice */
116
117 fp = &vp->idhfnc[i]; /* point at the function */
118
119 *(fpu + (fnoff[i] << 4) + FPU_TCTL) =
120 (fp->idftmd = (fp->idftmd & ~3) | 1);
121 }
122
123 fp = &vp->idhfnc[curfunc]; /* point at the function */
124
125 if (subj) { /* deleting trailing points */
126
127 /* move points down */
128
129 pp1 = &vp->idhpnt[pt1];
130 pp2 = &vp->idhpnt[pt2];
131
132 for (i = nmv * PT_SIZE; i > 0; i--)
133 *pp1++ = *pp2++;
134
135 /* adjust total points remaining */
136
137 vp->idhplft += np;
138
139 /* adjust number of points in this function */
140
141 vp->idhfnc[curfunc].idfpif -= np;
142
143 /* adjust starting points in other functions */
144
145 for (cf = curfunc + 1; cf < NFINST; cf++)
146 vp->idhfnc[cf].idfpt1 -= np;
147
148 setipl(oldi); /* +++++ restore interrupts +++++ */
149
150 edfunc(curfunc); /* set new current point */
151 subj -= 1;
152/*
153
154*/
155 } else { /* deleting all points */
156
157 /* reset first point in function */
158
159 pp = &vp->idhpnt[fp->idfpt1];
160
161 pp->iptim = FPU_MINT;
162 pp->ipval = finival[curfunc];
163 pp->ipvmlt = 0;
164 pp->ipvsrc = SM_NONE;
165 pp->ipact = AC_NULL;
166 pp->ippar1 = 0;
167 pp->ippar2 = 0;
168 pp->ippar3 = 0;
169
170 /* adjust functions */
171
172 if (np > 1) { /* if deleting more points than 1 ... */
173
174 --nmv; /* one less point to move */
175 ++pt1; /* start one slot up */
176
177 /* move points down */
178
179 pp1 = &vp->idhpnt[pt1];
180 pp2 = &vp->idhpnt[pt2];
181
182 for (i = nmv * PT_SIZE; i > 0; i--)
183 *pp1++ = *pp2++;
184
185 /* adjust total points remaining */
186
187 vp->idhplft += (np - 1);
188
189 /* adjust number of points in this function */
190
191 vp->idhfnc[curfunc].idfpif -= (np - 1);
192
193 /* adjust starting points in other functions */
194
195 for (cf = curfunc + 1; cf < NFINST; cf++)
196 vp->idhfnc[cf].idfpt1 -= (np - 1);
197 }
198
199 setipl(oldi); /* restore interrupts */
200
201 edfunc(curfunc); /* make point 0 current */
202 subj = 0;
203 }
204
205/*
206
207*/
208#if DEBUGIT
209 if (debugsw AND debugdf) {
210
211 printf("delpnts(): plft = %3d pif = %3d subj = %3d\n",
212 vp->idhplft, vp->idhfnc[curfunc].idfpif, subj);
213
214 printf(" fnc pif\n");
215
216 for (cf = 0; cf < NFINST; cf++)
217 printf(" %3d %3d%s\n",
218 cf, vp->idhfnc[cf].idfpif,
219 (cf EQ curfunc) ? " <-- curfunc" : "");
220
221 printf("\n");
222 }
223#endif
224
225 pntsel();
226 pntsv = 0;
227 showpt(1);
228 modinst();
229
230 return(SUCCESS);
231}
232
233/*
234
235*/
236
237/*
238 =============================================================================
239 inspnt() -- insert a new point into a function
240 =============================================================================
241*/
242
243int16_t inspnt(struct instdef *ip, int16_t fn, int16_t inpnt)
244{
245 register int8_t *fp1, *fp2;
246 register int16_t i, j, k, l, npts;
247 int16_t topnt, frompt, oldi;
248
249 if (ip->idhplft EQ 0) /* see if instrument has points left */
250 return(FALSE);
251
252 if (ip->idhfnc[fn].idfpif EQ 99) /* see if function is full */
253 return(FALSE);
254
255 topnt = NIPNTS - ip->idhplft; /* calculate move parameters */
256 frompt = topnt - 1;
257 npts = frompt - inpnt;
258 i = topnt;
259 j = frompt;
260
261#if D_INSPNT
262 if (debugsw)
263 printf("inspnt(): fn=%d, in=%d, to=%d, from=%d, npts=%d, pif=%d\r\n",
264 fn, inpnt, topnt, frompt, npts, ip->idhfnc[fn].idfpif);
265#endif
266
267/*
268
269*/
270 oldi = setipl(FPU_DI); /* disable FPU interrupts */
271
272/* ++++++++++++++++++++++++ FPU interrupts disabled +++++++++++++++++++++++++ */
273
274 for (k = 0; k < npts; k++) { /* move things up */
275
276 fp1 = &ip->idhpnt[i--];
277 fp2 = &ip->idhpnt[j--];
278
279 for (l = 0; l < sizeof (struct instpnt); l++)
280 *fp1++ = *fp2++;
281 }
282
283 for (i = fn + 1; i < NFINST; i++) { /* update point numbers */
284
285 ++ip->idhfnc[i].idfpt1; /* first point */
286 ++ip->idhfnc[i].idfcpt; /* current point */
287 }
288
289 setipl(oldi); /* restore interrupts */
290
291/* ++++++++++++++++++++++++++ Interrupts restored +++++++++++++++++++++++++++ */
292
293 ++ip->idhfnc[fn].idfpif; /* update point totals */
294 --ip->idhplft;
295
296#if D_INSPNT
297 if (debugsw)
298 printf("inspnt(): idfpif=%d, idhplft=%d\r\n",
299 ip->idhfnc[fn].idfpif, ip->idhplft);
300#endif
301
302 return(TRUE);
303}
304
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