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Commit | Line | Data |
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ea5293bb L |
1 | page 255\r |
2 | .z80\r | |
3 | \r | |
4 | \r | |
5 | global msginit\r | |
6 | ; global msg.ist,msg.in,msg.ost,msg.out\r | |
7 | ; global msg.sout\r | |
8 | global msg.sm,msg.recv\r | |
9 | \r | |
40df51ae | 10 | extrn bufinit,hwl2phy\r |
ea5293bb L |
11 | extrn fifolst\r |
12 | \r | |
13 | include config.inc\r | |
14 | include z180reg.inc\r | |
15 | \r | |
16 | \r | |
2a413c0d | 17 | dseg\r |
ea5293bb L |
18 | mkbuf 0,mtx.fifo,mtx.fifo_len\r |
19 | mkbuf 1,mrx.fifo,mrx.fifo_len\r | |
20 | \r | |
40df51ae L |
21 | ;txfifo_addr equ fifolst + (0*2)\r |
22 | ;rxfifo_addr equ fifolst + (1*2)\r | |
ea5293bb | 23 | \r |
40df51ae L |
24 | itx equ 0*2\r |
25 | irx equ 1*2\r | |
ea5293bb L |
26 | \r |
27 | ;--------------------------------------------------------------\r | |
28 | ;\r | |
40df51ae | 29 | ; Init message fifos\r |
ea5293bb L |
30 | ;\r |
31 | dseg\r | |
ea5293bb L |
32 | msginit:\r |
33 | ld a,(INIDONE)\r | |
34 | cp INIDONEVAL\r | |
35 | jr nz,msgi_1\r | |
36 | \r | |
37 | ld hl,(040h)\r | |
40df51ae | 38 | ;TODO: physical to logical address translation\r |
ea5293bb L |
39 | ld a,l\r |
40 | or h\r | |
41 | jr z,msgi_1\r | |
42 | \r | |
43 | ld de,fifolst\r | |
40df51ae | 44 | ld bc,4*2\r |
ea5293bb L |
45 | ldir\r |
46 | ret\r | |
47 | \r | |
48 | msgi_1:\r | |
40df51ae L |
49 | ld a,(043h)\r |
50 | ;TODO: value should be 0\r | |
ea5293bb | 51 | ld ix,mtx.fifo\r |
ea5293bb | 52 | call bufinit\r |
40df51ae L |
53 | \r |
54 | ld hl,fifolst\r | |
55 | call hwl2phy\r | |
56 | ld (040h),hl\r | |
57 | ld (040h+2),a\r | |
58 | ld a,0ffh\r | |
59 | ld (043h),a\r | |
60 | out (AVRINT5),a\r | |
61 | wait:\r | |
62 | ld a,(043h)\r | |
63 | or a\r | |
64 | jr nz,wait\r | |
65 | \r | |
ea5293bb | 66 | ld ix,mrx.fifo\r |
ea5293bb L |
67 | jp bufinit\r |
68 | \r | |
69 | \r | |
70 | ;--------------------------------------------------------------\r | |
71 | \r | |
2a413c0d | 72 | dseg\r |
ea5293bb L |
73 | msgi.st:\r |
74 | push ix\r | |
75 | ld ix,(fifolst+irx) ;\r | |
76 | \r | |
77 | buf.empty:\r | |
78 | ld a,(ix+o.in_idx) ;\r | |
79 | sub (ix+o.out_idx) ;\r | |
80 | pop ix\r | |
81 | ret z\r | |
82 | or 0ffh\r | |
83 | ret\r | |
84 | \r | |
85 | ;--------------------------------------------------------------\r | |
86 | \r | |
87 | msg.in:\r | |
88 | push ix\r | |
89 | ld ix,(fifolst+irx) ;\r | |
90 | \r | |
91 | buf.get:\r | |
92 | ld a,(ix+o.out_idx) ;\r | |
93 | bg.wait:\r | |
94 | cp (ix+o.in_idx) ;\r | |
95 | jr z,bg.wait\r | |
96 | \r | |
97 | push hl ;\r | |
98 | push ix\r | |
99 | pop hl\r | |
100 | add a,l\r | |
101 | ld l,a\r | |
102 | jr nc,bg.nc\r | |
103 | inc h\r | |
104 | bg.nc:\r | |
105 | ld l,(hl)\r | |
106 | \r | |
107 | ld a,(ix+o.out_idx) ;\r | |
108 | inc a\r | |
109 | and (ix+o.mask)\r | |
110 | ld (ix+o.out_idx),a\r | |
111 | \r | |
112 | ld a,l\r | |
113 | pop hl\r | |
114 | pop ix\r | |
115 | ret\r | |
116 | \r | |
117 | \r | |
118 | ;----------------------------------------------------------------------\r | |
119 | ; Receive message\r | |
120 | ;\r | |
121 | ; hl: pointer to receive buffer\r | |
122 | ; b: receive buffer size\r | |
123 | ; return:\r | |
124 | ; data in buffer, buffer[0] has len\r | |
125 | ; bc, a: destroyed\r | |
126 | \r | |
127 | ; TODO: time out\r | |
128 | ; TODO: return number of stored chars\r | |
129 | ; TODO: result code\r | |
130 | \r | |
131 | msg.recv:\r | |
132 | push de\r | |
133 | \r | |
134 | mr_wait_start:\r | |
135 | call msg.in\r | |
136 | cp 0AEh\r | |
137 | jr nz,mr_wait_start\r | |
138 | \r | |
139 | call msg.in ; get message length\r | |
140 | ld c,a\r | |
141 | inc c\r | |
142 | jr mr_do\r | |
143 | \r | |
144 | mr_next:\r | |
145 | dec c\r | |
146 | jr z,mr_exit ; while chars in input buffer\r | |
147 | call msg.in ; get next\r | |
148 | mr_do:\r | |
149 | ld e,a\r | |
150 | ld a,b\r | |
151 | or a ; if room in output buffer\r | |
152 | jr z,mr_skip\r | |
153 | ld (hl),e ; store char\r | |
154 | inc hl\r | |
155 | dec b\r | |
156 | mr_skip:\r | |
157 | jr mr_next ;\r | |
158 | \r | |
159 | mr_exit:\r | |
160 | pop de\r | |
161 | ret\r | |
162 | \r | |
163 | ;--------------------------------------------------------------\r | |
164 | \r | |
165 | msgo.st:\r | |
166 | push ix\r | |
167 | ld ix,(fifolst+itx) ;\r | |
168 | \r | |
169 | buf.full:\r | |
170 | ld a,(ix+o.in_idx) ;\r | |
171 | inc a\r | |
172 | and (ix+o.mask)\r | |
173 | sub (ix+o.out_idx) ;\r | |
174 | pop ix\r | |
175 | ret z\r | |
176 | or 0ffh\r | |
177 | ret\r | |
178 | \r | |
179 | ;--------------------------------------------------------------\r | |
180 | \r | |
181 | if 0\r | |
182 | \r | |
183 | msg.out:\r | |
184 | push ix\r | |
185 | ld ix,(fifolst+itx) ;\r | |
186 | \r | |
187 | push hl ;\r | |
188 | push bc\r | |
189 | push ix\r | |
190 | pop hl\r | |
191 | ld c,(ix+o.in_idx) ;\r | |
192 | ld b,0\r | |
193 | add hl,bc\r | |
194 | ld b,a\r | |
195 | \r | |
196 | ld a,c ;\r | |
197 | inc a\r | |
198 | and (ix+o.mask)\r | |
199 | bp.wait:\r | |
200 | cp (ix+o.out_idx) ;\r | |
201 | jr z,bp.wait\r | |
202 | ld (hl),b\r | |
203 | ld (ix+o.in_idx),a\r | |
204 | \r | |
205 | ld a,b\r | |
206 | out (AVRINT5),a\r | |
207 | pop bc\r | |
208 | pop hl\r | |
209 | pop ix\r | |
210 | ret\r | |
211 | \r | |
212 | endif\r | |
213 | \r | |
214 | ;--------------------------------------------------------------\r | |
215 | \r | |
216 | if 0\r | |
217 | \r | |
218 | msg.out:\r | |
219 | push ix\r | |
220 | ld ix,(fifolst+itx) ;\r | |
221 | \r | |
222 | push bc\r | |
223 | ld c,(ix+o.in_idx) ;\r | |
224 | ld b,0\r | |
225 | push ix ;14\r | |
226 | add ix,bc ;10\r | |
227 | ld (ix+0),a ;15\r | |
228 | pop ix ;12=51\r | |
229 | ld b,a ; 4\r | |
230 | ld a,c ;\r | |
231 | inc a ;\r | |
232 | and (ix+o.mask) ;\r | |
233 | bp.wait:\r | |
234 | cp (ix+o.out_idx) ;\r | |
235 | jr z,bp.wait ;\r | |
236 | ld (ix+o.in_idx),a ;\r | |
237 | \r | |
238 | ld a,b\r | |
239 | out (AVRINT5),a\r | |
240 | pop bc\r | |
241 | pop ix\r | |
242 | ret\r | |
243 | \r | |
244 | endif\r | |
245 | ;--------------------------------------------------------------\r | |
246 | \r | |
247 | if 0\r | |
248 | ; Works only, if buffer size < (128 - 3)\r | |
249 | ; --> mask must be 03fh or less\r | |
250 | \r | |
251 | msg.out:\r | |
252 | push ix\r | |
253 | ld ix,(fifolst+itx) ;\r | |
254 | \r | |
255 | push bc\r | |
256 | ld b,a ; 4\r | |
257 | ld a,(ix+o.in_idx) ;14\r | |
258 | ld ($ + 3 + 2),a ;15\r | |
259 | ld (ix+0),b ;15\r | |
260 | inc a ;\r | |
261 | and (ix+o.mask) ;\r | |
262 | bp.wait:\r | |
263 | cp (ix+o.out_idx) ;\r | |
264 | jr z,bp.wait ;\r | |
265 | ld (ix+o.in_idx),a ;\r | |
266 | \r | |
267 | ld a,b\r | |
268 | out (AVRINT5),a\r | |
269 | pop bc\r | |
270 | pop ix\r | |
271 | ret\r | |
272 | \r | |
273 | endif\r | |
274 | \r | |
275 | ;--------------------------------------------------------------\r | |
276 | ;\r | |
277 | ; (hl): data\r | |
278 | \r | |
279 | if 0\r | |
280 | \r | |
281 | msg.sout:\r | |
282 | push ix ;14\r | |
283 | ld ix,(fifolst+itx) ;12\r | |
284 | push bc ;11\r | |
285 | push de ;11\r | |
286 | ld c,(hl) ; 6\r | |
287 | ld b,0 ; 6\r | |
288 | inc hl ; 7\r | |
289 | ms.ol: ; \\r | |
290 | TODO: ld a,low mtx.fifo ; 6 does not work with DR LINK-80\r | |
291 | --> (fifolst+itx+0)\r | |
292 | add a,(ix+o.in_idx) ;14\r | |
293 | ld e,a ; 4\r | |
294 | ld a,high mtx.fifo ; 6 does not work with DR LINK-80\r | |
295 | --> (fifolst+itx+1)\r | |
296 | adc a,b ; 4\r | |
297 | ld d,a ; 4\r | |
298 | \r | |
299 | ld a,(ix+o.in_idx) ;14\r | |
300 | inc a ; 4\r | |
301 | and (ix+o.mask) ;14\r | |
302 | ms.wait:\r | |
303 | cp (ix+o.out_idx) ;14\r | |
304 | jr z,ms.wait ; 6/8\r | |
305 | \r | |
306 | ldi ;12\r | |
307 | ld (ix+o.in_idx),a ;15\r | |
308 | jp pe,ms.ol ; 6/9 -- 126\r | |
309 | \r | |
310 | out (AVRINT5),a ;10\r | |
311 | pop de ; 9\r | |
312 | pop bc ; 9\r | |
313 | pop ix ;12\r | |
314 | ret ; 9\r | |
315 | \r | |
316 | endif\r | |
317 | \r | |
318 | ;--------------------------------------------------------------\r | |
319 | ;\r | |
320 | ; (hl): data\r | |
321 | \r | |
322 | if 1\r | |
323 | \r | |
324 | msg.sout:\r | |
325 | push ix ;14\r | |
326 | ld ix,(fifolst+itx) ;12\r | |
327 | push bc ;11\r | |
328 | push de ;11\r | |
329 | ld b,(hl) ; 6\r | |
330 | inc hl ; 4\r | |
331 | ex de,hl ; 3\r | |
332 | ms.ol: ; \\r | |
333 | push ix ;14\r | |
334 | pop hl ; 9\r | |
335 | ld c,(ix+o.in_idx) ;14\r | |
336 | ld a,c ; 4\r | |
337 | add l ; 4\r | |
338 | ld l,a ; 4\r | |
339 | jr nc,ms.on ; 6/8\r | |
340 | inc h ; 4\r | |
341 | ms.on:\r | |
342 | ld a,c ; 4\r | |
343 | inc a ; 4\r | |
344 | and (ix+o.mask) ;14\r | |
345 | ms.wait:\r | |
346 | cp (ix+o.out_idx) ;14\r | |
347 | jr z,ms.wait ; 6/8\r | |
348 | ld c,a ; 4\r | |
349 | ld a,(de) ; 6\r | |
350 | inc de ; 4\r | |
351 | ld (hl),a ; 7\r | |
352 | ld (ix+o.in_idx),c ;15\r | |
353 | djnz ms.ol ; 7/9 -- 130\r | |
354 | \r | |
355 | out (AVRINT5),a ;10\r | |
356 | ex de,hl ; 3\r | |
357 | pop de ; 9\r | |
358 | pop bc ; 9\r | |
359 | pop ix ;12\r | |
360 | ret ; 9\r | |
361 | \r | |
362 | endif\r | |
363 | \r | |
364 | ;----------------------------------------------------------------------\r | |
365 | \r | |
366 | \r | |
367 | \r | |
368 | ; Send message\r | |
369 | ; b: msg length\r | |
370 | ; hl: pointer to message (netto)\r | |
371 | \r | |
372 | msg.snd:\r | |
373 | push ix\r | |
374 | ld ix,(fifolst+itx)\r | |
375 | ld c,0AEh\r | |
376 | call buf.put\r | |
377 | msnd_l:\r | |
378 | ld c,(hl)\r | |
379 | inc hl\r | |
380 | call buf.put\r | |
381 | djnz msnd_l\r | |
382 | pop ix\r | |
383 | ret\r | |
384 | \r | |
385 | \r | |
386 | ;----------------------------------------------------------------------\r | |
387 | ;\r | |
388 | ; Put char in message buffer:\r | |
389 | ; ix: buffer to put into\r | |
390 | ; c: char\r | |
391 | \r | |
392 | buf.put:\r | |
393 | push ix ;15\r | |
394 | push bc ;11\r | |
395 | ld a,(ix+o.in_idx) ;19\r | |
396 | ld c,a ;4\r | |
397 | ld b,0 ;7\r | |
398 | add ix,bc ;11\r | |
399 | pop bc ;10\r | |
400 | ld (ix),c ;7\r | |
401 | pop ix ;14\r | |
402 | \r | |
403 | inc a ;4\r | |
404 | and (ix+o.mask) ;19 =121\r | |
405 | bufp.wait:\r | |
406 | cp (ix+o.out_idx) ;19\r | |
407 | jr z,bufp.wait ;12/7\r | |
408 | ld (ix+o.in_idx),a ;19\r | |
409 | \r | |
410 | out (AVRINT5),a ;11\r | |
411 | ld a,c ;4\r | |
412 | ret ;10 =191\r | |
413 | \r | |
414 | \r | |
415 | ;----------------------------------------------------------------------\r | |
416 | ; Send message MEMORY\r | |
417 | ;\r | |
418 | ; hl: pointer to message (netto)\r | |
419 | ; b: msg length\r | |
420 | \r | |
421 | msg.sm:\r | |
422 | push ix\r | |
423 | ld ix,(fifolst+itx)\r | |
424 | ld c,0AEh\r | |
425 | call buf.put\r | |
426 | ld c,b\r | |
427 | call buf.put\r | |
428 | msm_l:\r | |
429 | ld c,(hl)\r | |
430 | inc hl\r | |
431 | call buf.put\r | |
432 | djnz msm_l\r | |
433 | pop ix\r | |
434 | ret\r | |
435 | \r | |
436 | \r | |
437 | ;----------------------------------------------------------------------\r | |
438 | ; Send message INLINE\r | |
439 | ;\r | |
440 | ; h: function\r | |
441 | ; l: subfunction\r | |
442 | ; b: msg length\r | |
443 | \r | |
444 | if 0\r | |
445 | \r | |
446 | msg.sil:\r | |
447 | ex (sp),hl\r | |
448 | push ix\r | |
449 | ld ix,(fifolst+itx)\r | |
450 | ld c,0AEh\r | |
451 | call buf.put\r | |
452 | ld b,(hl)\r | |
453 | msnd_pl:\r | |
454 | ld c,(hl)\r | |
455 | inc hl\r | |
456 | call puf.put\r | |
457 | djnz msnd_pl\r | |
458 | ex (sp),hl\r | |
459 | pop ix\r | |
460 | ret\r | |
461 | \r | |
462 | endif\r | |
463 | \r | |
464 | ;--------------------------------------------------------------\r | |
465 | \r | |
466 | if 0\r | |
467 | \r | |
468 | msg.co:\r | |
469 | push af\r | |
470 | push hl\r | |
471 | ld (buf_char),a\r | |
472 | ld hl,buf\r | |
473 | call msg.sout\r | |
474 | pop hl\r | |
475 | pop af\r | |
476 | ret\r | |
477 | \r | |
478 | buf:\r | |
479 | db buf_end - $ - 1 ;output string length\r | |
480 | db 0AEh ; message start token\r | |
481 | db buf_end - $ - 1 ; message length\r | |
482 | db 1 ; command\r | |
483 | db 1 ; subcommand\r | |
484 | buf_char:\r | |
485 | db 0 ; pay load\r | |
486 | buf_end:\r | |
487 | \r | |
488 | endif\r | |
489 | \r | |
490 | ;--------------------------------------------------------------\r | |
491 | \r | |
492 | \r | |
493 | \r | |
494 | end\r |