1 #include "940shared.h"
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3 static _940_data_t *shared_data = (_940_data_t *) 0x100000;
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4 static _940_ctl_t *shared_ctl = (_940_ctl_t *) 0x200000;
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10 void spend_cycles(int c);
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11 void cache_clean(void);
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12 void cache_clean_flush(void);
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14 // asm volatile ("mov r0, #0" ::: "r0");
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15 // asm volatile ("mcr p15, 0, r0, c7, c6, 0" ::: "r0"); /* flush dcache */
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16 // asm volatile ("mcr p15, 0, r0, c7, c10, 4" ::: "r0"); /* drain write buffer */
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18 void Main940(int startvector)
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20 ym2612_940 = &shared_data->ym2612;
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21 mix_buffer = shared_data->mix_buffer;
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24 shared_ctl->vstarts[startvector]++;
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25 asm volatile ("mcr p15, 0, r0, c7, c10, 4" ::: "r0");
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28 for (;; shared_ctl->loopc++)
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32 while (!shared_ctl->busy)
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34 //shared_ctl->waitc++;
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38 if (!shared_ctl->busy)
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43 for (job_num = 0; job_num < MAX_940JOBS; job_num++)
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45 switch (shared_ctl->jobs[job_num])
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47 case JOB940_YM2612INIT:
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48 shared_ctl->writebuff0[0] = shared_ctl->writebuff1[0] = 0xffff;
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49 YM2612Init_(shared_ctl->baseclock, shared_ctl->rate);
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52 case JOB940_YM2612RESETCHIP:
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56 case JOB940_PICOSTATELOAD:
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57 YM2612PicoStateLoad_();
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60 case JOB940_YM2612UPDATEONE: {
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62 if (shared_ctl->writebuffsel == 1) {
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63 wbuff = (int *) shared_ctl->writebuff1;
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65 wbuff = (int *) shared_ctl->writebuff0;
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68 /* playback all writes */
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69 for (i = 2048/2; i > 0; i--) {
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73 if (d == 0xffff) break;
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74 YM2612Write_(d >> 8, d);
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76 if (d == 0xffff) break;
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77 YM2612Write_(d >> 8, d);
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80 YM2612UpdateOne_(0, shared_ctl->length, shared_ctl->stereo);
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86 shared_ctl->busy = 0;
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87 // cache_clean_flush();
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89 // asm volatile ("mov r0, #0" ::: "r0");
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90 // asm volatile ("mcr p15, 0, r0, c7, c10, 4" ::: "r0"); /* drain write buffer, should be done on nonbuffered write */
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