mirror of
https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 07:17:45 -04:00
PCM sound, refactored code940
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@27 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz
parent
7573607016
commit
4f265db776
28 changed files with 914 additions and 312 deletions
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@ -49,6 +49,7 @@ int PicoInit(void)
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// to be called once on emu exit
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void PicoExit(void)
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{
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if (PicoMCD&1)
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PicoExitMCD();
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z80_exit();
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@ -322,7 +323,8 @@ static __inline void getSamples(int y)
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if (emustatus&1) emustatus|=2; else emustatus&=~2;
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if (PicoWriteSound) PicoWriteSound();
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// clear sound buffer
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memset(PsndOut, 0, (PicoOpt & 8) ? (PsndLen<<2) : (PsndLen<<1));
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sound_clear();
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//memset(PsndOut, 0, (PicoOpt & 8) ? (PsndLen<<2) : (PsndLen<<1));
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}
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else if(emustatus & 3) {
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emustatus|= 2;
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@ -23,13 +23,14 @@ extern "C" {
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int mp3_get_bitrate(FILE *f, int size);
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void mp3_start_play(FILE *f, int pos);
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int mp3_get_offset(void); // 0-1023
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void mp3_update(int *buffer, int length, int stereo);
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// Pico.c
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// PicoOpt bits LSb->MSb:
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// enable_ym2612&dac, enable_sn76496, enable_z80, stereo_sound,
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// alt_renderer, 6button_gamepad, accurate_timing, accurate_sprites,
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// draw_no_32col_border, external_ym2612
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// draw_no_32col_border, external_ym2612, enable_pcm, enable cdda
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extern int PicoOpt;
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extern int PicoVer;
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extern int PicoSkipFrame; // skip rendering frame, but still do sound (if enabled) and emulation stuff
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@ -164,6 +164,22 @@ struct PicoSRAM
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#include "cd/LC89510.h"
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#include "cd/gfx_cd.h"
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struct mcd_pcm
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{
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unsigned char control; // reg7
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unsigned char enabled; // reg8
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unsigned char cur_ch;
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unsigned char bank;
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int pad1;
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struct pcm_chan
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{
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unsigned char regs[8];
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unsigned int addr; // played sample address
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int pad;
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} ch[8];
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};
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struct mcd_misc
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{
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unsigned short hint_vector;
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@ -174,7 +190,9 @@ struct mcd_misc
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unsigned short audio_offset; // for savestates: play pointer offset (0-1023)
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unsigned char audio_track; // playing audio track # (zero based)
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char pad1;
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int pad[12];
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int timer_int3;
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unsigned int timer_stopwatch;
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int pad[10];
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};
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typedef struct
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@ -185,8 +203,13 @@ typedef struct
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unsigned char prg_ram_b[4][0x20000];
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};
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unsigned char word_ram[0x40000]; // 256K
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union {
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unsigned char pcm_ram[0x10000]; // 64K
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unsigned char pcm_ram_b[0x10][0x1000];
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};
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unsigned char bram[0x2000]; // 8K
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unsigned char s68k_regs[0x200];
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unsigned char s68k_regs[0x200]; // GA, not CPU regs
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struct mcd_pcm pcm;
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_scd_toc TOC; // not to be saved
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CDD cdd;
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CDC cdc;
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@ -1,6 +1,6 @@
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// This is part of Pico Library
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// (c) Copyright 2006 notaz, All rights reserved.
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// (c) Copyright 2007 notaz, All rights reserved.
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// Free for non-commercial use.
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// For commercial use, separate licencing terms must be obtained.
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@ -31,12 +31,14 @@ typedef enum {
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CHUNK_S68K,
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CHUNK_PRG_RAM,
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CHUNK_WORD_RAM,
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CHUNK_BRAM, // 15
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CHUNK_PCM_RAM, // 15
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CHUNK_BRAM,
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CHUNK_GA_REGS,
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CHUNK_PCM,
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CHUNK_CDC,
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CHUNK_CDD,
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CHUNK_CDD, // 20
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CHUNK_SCD,
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CHUNK_RC, // 20
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CHUNK_RC,
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CHUNK_MISC_CD,
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} chunk_name_e;
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@ -96,8 +98,10 @@ int PicoCdSaveState(void *file)
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CHECKED_WRITE_BUFF(CHUNK_S68K, buff);
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CHECKED_WRITE_BUFF(CHUNK_PRG_RAM, Pico_mcd->prg_ram);
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CHECKED_WRITE_BUFF(CHUNK_WORD_RAM, Pico_mcd->word_ram); // in 2M format
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CHECKED_WRITE_BUFF(CHUNK_PCM_RAM, Pico_mcd->pcm_ram);
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CHECKED_WRITE_BUFF(CHUNK_BRAM, Pico_mcd->bram);
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CHECKED_WRITE_BUFF(CHUNK_GA_REGS, Pico_mcd->s68k_regs);
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CHECKED_WRITE_BUFF(CHUNK_GA_REGS, Pico_mcd->s68k_regs); // GA regs, not CPU regs
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CHECKED_WRITE_BUFF(CHUNK_PCM, Pico_mcd->pcm);
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CHECKED_WRITE_BUFF(CHUNK_CDD, Pico_mcd->cdd);
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CHECKED_WRITE_BUFF(CHUNK_CDC, Pico_mcd->cdc);
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CHECKED_WRITE_BUFF(CHUNK_SCD, Pico_mcd->scd);
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@ -147,6 +151,7 @@ int PicoCdLoadState(void *file)
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CHECKED_READ(1, buff);
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CHECKED_READ(4, &len);
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if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");
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if (buff[0] > CHUNK_FM && !(PicoMCD & 1)) R_ERROR_RETURN("cd chunk in non CD state?");
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switch (buff[0])
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{
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@ -181,8 +186,10 @@ int PicoCdLoadState(void *file)
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case CHUNK_PRG_RAM: CHECKED_READ_BUFF(Pico_mcd->prg_ram); break;
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case CHUNK_WORD_RAM: CHECKED_READ_BUFF(Pico_mcd->word_ram); break;
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case CHUNK_PCM_RAM: CHECKED_READ_BUFF(Pico_mcd->pcm_ram); break;
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case CHUNK_BRAM: CHECKED_READ_BUFF(Pico_mcd->bram); break;
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case CHUNK_GA_REGS: CHECKED_READ_BUFF(Pico_mcd->s68k_regs); break;
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case CHUNK_PCM: CHECKED_READ_BUFF(Pico_mcd->pcm); break;
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case CHUNK_CDD: CHECKED_READ_BUFF(Pico_mcd->cdd); break;
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case CHUNK_CDC: CHECKED_READ_BUFF(Pico_mcd->cdc); break;
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case CHUNK_SCD: CHECKED_READ_BUFF(Pico_mcd->scd); break;
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106
Pico/cd/Memory.c
106
Pico/cd/Memory.c
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@ -17,6 +17,7 @@
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#include "../sound/sn76496.h"
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#include "gfx_cd.h"
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#include "pcm.h"
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typedef unsigned char u8;
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typedef unsigned short u16;
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@ -161,7 +162,8 @@ static u32 s68k_reg_read16(u32 a)
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goto end;
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case 0xC:
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dprintf("s68k stopwatch timer read");
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break;
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d = Pico_mcd->m.timer_stopwatch >> 16;
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goto end;
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case 0x30:
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dprintf("s68k int3 timer read");
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break;
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@ -212,10 +214,13 @@ static void s68k_reg_write8(u32 a, u32 d)
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dprintf("s68k set CDC dma addr");
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break;
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case 0xc:
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case 0xd:
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dprintf("s68k set stopwatch timer");
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break;
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Pico_mcd->m.timer_stopwatch = 0;
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return;
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case 0x31:
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dprintf("s68k set int3 timer");
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dprintf("s68k set int3 timer: %02x", d);
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Pico_mcd->m.timer_int3 = d << 16;
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break;
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case 0x33: // IRQ mask
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dprintf("s68k irq mask: %02x", d);
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@ -830,6 +835,21 @@ u8 PicoReadS68k8(u32 a)
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goto end;
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}
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// PCM
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if ((a&0xff8000)==0xff0000) {
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dprintf("s68k_pcm r8: [%06x] @%06x", a, SekPc);
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a &= 0x7fff;
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if (a >= 0x2000)
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d = Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][(a>>1)&0xfff];
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else if (a >= 0x20) {
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a &= 0x1e;
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d = Pico_mcd->pcm.ch[a>>2].addr >> PCM_STEP_SHIFT;
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if (a & 2) d >>= 8;
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}
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dprintf("ret = %02x", (u8)d);
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goto end;
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}
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// bram
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if ((a&0xff0000)==0xfe0000) {
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d = Pico_mcd->bram[(a>>1)&0x1fff];
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@ -849,7 +869,7 @@ u8 PicoReadS68k8(u32 a)
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u16 PicoReadS68k16(u32 a)
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{
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u16 d=0;
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u32 d=0;
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a&=0xfffffe;
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@ -898,12 +918,27 @@ u16 PicoReadS68k16(u32 a)
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if ((a&0xff0000)==0xfe0000) {
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dprintf("s68k_bram r16: [%06x] @%06x", a, SekPc);
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a = (a>>1)&0x1fff;
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d = Pico_mcd->bram[a++]; // Gens does little endian here, an so do we..
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d = Pico_mcd->bram[a++]; // Gens does little endian here, and so do we..
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d|= Pico_mcd->bram[a++] << 8;
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dprintf("ret = %04x", d);
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goto end;
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}
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// PCM
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if ((a&0xff8000)==0xff0000) {
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dprintf("s68k_pcm r16: [%06x] @%06x", a, SekPc);
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a &= 0x7fff;
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if (a >= 0x2000)
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d = Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][(a>>1)&0xfff];
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else if (a >= 0x20) {
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a &= 0x1e;
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d = Pico_mcd->pcm.ch[a>>2].addr >> PCM_STEP_SHIFT;
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if (a & 2) d >>= 8;
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}
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dprintf("ret = %04x", d);
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goto end;
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}
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dprintf("s68k r16: %06x, %04x @%06x", a&0xffffff, d, SekPcS68k);
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end:
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@ -964,6 +999,29 @@ u32 PicoReadS68k32(u32 a)
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goto end;
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}
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// PCM
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if ((a&0xff8000)==0xff0000) {
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dprintf("s68k_pcm r32: [%06x] @%06x", a, SekPc);
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a &= 0x7fff;
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if (a >= 0x2000) {
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a >>= 1;
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d = Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][a&0xfff] << 16;
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d |= Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][(a+1)&0xfff];
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} else if (a >= 0x20) {
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a &= 0x1e;
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if (a & 2) {
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a >>= 2;
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d = (Pico_mcd->pcm.ch[a].addr >> (PCM_STEP_SHIFT-8)) & 0xff0000;
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d |= (Pico_mcd->pcm.ch[(a+1)&7].addr >> PCM_STEP_SHIFT) & 0xff;
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} else {
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d = Pico_mcd->pcm.ch[a>>2].addr >> PCM_STEP_SHIFT;
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d = ((d<<16)&0xff0000) | ((d>>8)&0xff); // PCM chip is LE
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}
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}
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dprintf("ret = %08x", d);
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goto end;
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}
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// bram
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if ((a&0xff0000)==0xfe0000) {
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dprintf("s68k_bram r32: [%06x] @%06x", a, SekPc);
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@ -1004,9 +1062,6 @@ void PicoWriteS68k8(u32 a,u8 d)
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return;
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}
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if (a != 0xff0011 && (a&0xff8000) == 0xff0000) // PCM hack
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return;
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// regs
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if ((a&0xfffe00) == 0xff8000) {
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a &= 0x1ff;
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@ -1040,6 +1095,16 @@ void PicoWriteS68k8(u32 a,u8 d)
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return;
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}
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// PCM
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if ((a&0xff8000)==0xff0000) {
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a &= 0x7fff;
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if (a >= 0x2000)
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Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][(a>>1)&0xfff] = d;
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else if (a < 0x12)
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pcm_write(a>>1, d);
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return;
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}
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// bram
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if ((a&0xff0000)==0xfe0000) {
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Pico_mcd->bram[(a>>1)&0x1fff] = d;
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@ -1101,6 +1166,16 @@ void PicoWriteS68k16(u32 a,u16 d)
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return;
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}
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// PCM
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if ((a&0xff8000)==0xff0000) {
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a &= 0x7fff;
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if (a >= 0x2000)
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Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][(a>>1)&0xfff] = d;
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else if (a < 0x12)
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pcm_write(a>>1, d & 0xff);
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return;
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}
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// bram
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if ((a&0xff0000)==0xfe0000) {
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dprintf("s68k_bram w16: [%06x] %04x @%06x", a, d, SekPc);
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@ -1171,6 +1246,21 @@ void PicoWriteS68k32(u32 a,u32 d)
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return;
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}
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// PCM
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if ((a&0xff8000)==0xff0000) {
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a &= 0x7fff;
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if (a >= 0x2000) {
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a >>= 1;
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Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][a&0xfff] = (d >> 16);
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Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][(a+1)&0xfff] = d;
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} else if (a < 0x12) {
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a >>= 1;
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pcm_write(a, (d>>16) & 0xff);
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pcm_write(a+1, d & 0xff);
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}
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return;
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}
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// bram
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if ((a&0xff0000)==0xfe0000) {
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dprintf("s68k_bram w32: [%06x] %08x @%06x", a, d, SekPc);
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@ -32,11 +32,13 @@ int PicoResetMCD(int hard)
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{
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memset(Pico_mcd->prg_ram, 0, sizeof(Pico_mcd->prg_ram));
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memset(Pico_mcd->word_ram, 0, sizeof(Pico_mcd->word_ram));
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memset(Pico_mcd->pcm_ram, 0, sizeof(Pico_mcd->pcm_ram));
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if (hard) {
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memset(Pico_mcd->bram, 0, sizeof(Pico_mcd->bram));
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memcpy(Pico_mcd->bram + sizeof(Pico_mcd->bram) - 8*0x10, formatted_bram, 8*0x10);
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}
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memset(Pico_mcd->s68k_regs, 0, sizeof(Pico_mcd->s68k_regs));
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memset(&Pico_mcd->pcm, 0, sizeof(Pico_mcd->pcm));
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*(unsigned int *)(Pico_mcd->bios + 0x70) = 0xffffffff; // reset hint vector (simplest way to implement reg6)
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Pico_mcd->m.state_flags |= 2; // s68k reset pending
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@ -97,6 +99,38 @@ static __inline void check_cd_dma(void)
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Update_CDC_TRansfer(ddx); // now go and do the actual transfer
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}
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static __inline void update_chips(void)
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{
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int counter_timer, int3_set;
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int counter75hz_lim = Pico.m.pal ? 2080 : 2096;
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// 75Hz CDC update
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if ((Pico_mcd->m.counter75hz+=10) >= counter75hz_lim) {
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Pico_mcd->m.counter75hz -= counter75hz_lim;
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Check_CD_Command();
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}
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// update timers
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counter_timer = Pico.m.pal ? 0x21630 : 0x2121c; // 136752 : 135708;
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Pico_mcd->m.timer_stopwatch += counter_timer;
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if ((int3_set = Pico_mcd->s68k_regs[0x31])) {
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Pico_mcd->m.timer_int3 -= counter_timer;
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if (Pico_mcd->m.timer_int3 < 0) {
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if (Pico_mcd->s68k_regs[0x33] & (1<<3)) {
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dprintf("s68k: timer irq 3");
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SekInterruptS68k(3);
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Pico_mcd->m.timer_int3 += int3_set << 16;
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}
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// is this really what happens if irq3 is masked out?
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Pico_mcd->m.timer_int3 &= 0xffffff;
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}
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}
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// update gfx chip
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if (Pico_mcd->rot_comp.Reg_58 & 0x8000)
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gfx_cd_update();
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}
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// to be called on 224 or line_sample scanlines only
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static __inline void getSamples(int y)
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{
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@ -108,7 +142,8 @@ static __inline void getSamples(int y)
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if (emustatus&1) emustatus|=2; else emustatus&=~2;
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if (PicoWriteSound) PicoWriteSound();
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// clear sound buffer
|
||||
memset(PsndOut, 0, (PicoOpt & 8) ? (PsndLen<<2) : (PsndLen<<1));
|
||||
sound_clear();
|
||||
//memset(PsndOut, 0, (PicoOpt & 8) ? (PsndLen<<2) : (PsndLen<<1));
|
||||
}
|
||||
else if(emustatus & 3) {
|
||||
emustatus|= 2;
|
||||
|
|
@ -118,12 +153,10 @@ static __inline void getSamples(int y)
|
|||
}
|
||||
|
||||
|
||||
|
||||
// Accurate but slower frame which does hints
|
||||
static int PicoFrameHintsMCD(void)
|
||||
{
|
||||
struct PicoVideo *pv=&Pico.video;
|
||||
int total_z80=0,lines,y,lines_vis = 224,z80CycleAim = 0,line_sample,counter75hz_lim;
|
||||
int total_z80=0,lines,y,lines_vis = 224,z80CycleAim = 0,line_sample;
|
||||
const int cycles_68k=488,cycles_z80=228,cycles_s68k=795; // both PAL and NTSC compile to same values
|
||||
int skip=PicoSkipFrame || (PicoOpt&0x10);
|
||||
int hint; // Hint counter
|
||||
|
|
@ -133,13 +166,11 @@ static int PicoFrameHintsMCD(void)
|
|||
//cycles_z80 = (int) ((double) OSC_PAL / 15 / 50 / 312 + 0.4); // 228
|
||||
lines = 312; // Steve Snake says there are 313 lines, but this seems to also work well
|
||||
line_sample = 68;
|
||||
counter75hz_lim = 2080;
|
||||
if(pv->reg[1]&8) lines_vis = 240;
|
||||
} else {
|
||||
//cycles_68k = (int) ((double) OSC_NTSC / 7 / 60 / 262 + 0.4); // 488
|
||||
//cycles_z80 = (int) ((double) OSC_NTSC / 15 / 60 / 262 + 0.4); // 228
|
||||
lines = 262;
|
||||
counter75hz_lim = 2096;
|
||||
line_sample = 93;
|
||||
}
|
||||
|
||||
|
|
@ -242,13 +273,7 @@ static int PicoFrameHintsMCD(void)
|
|||
total_z80+=z80_run(z80CycleAim-total_z80);
|
||||
}
|
||||
|
||||
if ((Pico_mcd->m.counter75hz+=10) >= counter75hz_lim) {
|
||||
Pico_mcd->m.counter75hz -= counter75hz_lim;
|
||||
Check_CD_Command();
|
||||
}
|
||||
|
||||
if (Pico_mcd->rot_comp.Reg_58 & 0x8000)
|
||||
gfx_cd_update();
|
||||
update_chips();
|
||||
}
|
||||
|
||||
// draw a frame just after vblank in alternative render mode
|
||||
|
|
|
|||
57
Pico/sound/mix.c
Normal file
57
Pico/sound/mix.c
Normal file
|
|
@ -0,0 +1,57 @@
|
|||
#define MAXOUT (+32767)
|
||||
#define MINOUT (-32768)
|
||||
|
||||
/* limitter */
|
||||
#define Limit(val, max,min) { \
|
||||
if ( val > max ) val = max; \
|
||||
else if ( val < min ) val = min; \
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
void memcpy32(int *dest, int *src, int count)
|
||||
{
|
||||
while (count--)
|
||||
*dest++ = *src++;
|
||||
}
|
||||
|
||||
|
||||
void memset32(int *dest, int c, int count)
|
||||
{
|
||||
while (count--)
|
||||
*dest++ = c;
|
||||
}
|
||||
|
||||
|
||||
void mix_32_to_16l_stereo(short *dest, int *src, int count)
|
||||
{
|
||||
int l, r;
|
||||
|
||||
for (; count > 0; count--)
|
||||
{
|
||||
l = r = *dest;
|
||||
l += *src++;
|
||||
r += *src++;
|
||||
Limit( l, MAXOUT, MINOUT );
|
||||
Limit( r, MAXOUT, MINOUT );
|
||||
*dest++ = l;
|
||||
*dest++ = r;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void mix_32_to_16_mono(short *dest, int *src, int count)
|
||||
{
|
||||
int l;
|
||||
|
||||
for (; count > 0; count--)
|
||||
{
|
||||
l = *dest;
|
||||
l += *src++;
|
||||
Limit( l, MAXOUT, MINOUT );
|
||||
*dest++ = l;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
10
Pico/sound/mix.h
Normal file
10
Pico/sound/mix.h
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
|
||||
void memcpy32(int *dest, int *src, int count);
|
||||
void memset32(int *dest, int c, int count);
|
||||
//void mix_32_to_32(int *dest, int *src, int count);
|
||||
void mix_16h_to_32(int *dest, short *src, int count);
|
||||
void mix_16h_to_32_s1(int *dest, short *src, int count);
|
||||
void mix_16h_to_32_s2(int *dest, short *src, int count);
|
||||
void mix_32_to_16l_stereo(short *dest, int *src, int count);
|
||||
void mix_32_to_16_mono(short *dest, int *src, int count);
|
||||
|
||||
350
Pico/sound/mix.s
Normal file
350
Pico/sound/mix.s
Normal file
|
|
@ -0,0 +1,350 @@
|
|||
@ vim:filetype=armasm
|
||||
|
||||
.global memcpy32 @ int *dest, int *src, int count
|
||||
|
||||
memcpy32:
|
||||
stmfd sp!, {r4,lr}
|
||||
|
||||
subs r2, r2, #4
|
||||
bmi mcp32_fin
|
||||
|
||||
mcp32_loop:
|
||||
ldmia r1!, {r3,r4,r12,lr}
|
||||
subs r2, r2, #4
|
||||
stmia r0!, {r3,r4,r12,lr}
|
||||
bpl mcp32_loop
|
||||
|
||||
mcp32_fin:
|
||||
tst r2, #3
|
||||
ldmeqfd sp!, {r4,pc}
|
||||
tst r2, #1
|
||||
ldrne r3, [r1], #4
|
||||
strne r3, [r0], #4
|
||||
|
||||
mcp32_no_unal1:
|
||||
tst r2, #2
|
||||
ldmneia r1!, {r3,r12}
|
||||
ldmfd sp!, {r4,lr}
|
||||
stmneia r0!, {r3,r12}
|
||||
bx lr
|
||||
|
||||
|
||||
|
||||
.global memset32 @ int *dest, int c, int count
|
||||
|
||||
memset32:
|
||||
stmfd sp!, {lr}
|
||||
|
||||
mov r3, r1
|
||||
subs r2, r2, #4
|
||||
bmi mst32_fin
|
||||
|
||||
mov r12,r1
|
||||
mov lr, r1
|
||||
|
||||
mst32_loop:
|
||||
subs r2, r2, #4
|
||||
stmia r0!, {r1,r3,r12,lr}
|
||||
bpl mst32_loop
|
||||
|
||||
mst32_fin:
|
||||
tst r2, #1
|
||||
strne r1, [r0], #4
|
||||
|
||||
tst r2, #2
|
||||
stmneia r0!, {r1,r3}
|
||||
|
||||
ldmfd sp!, {lr}
|
||||
bx lr
|
||||
|
||||
|
||||
|
||||
@ this assumes src is word aligned
|
||||
.global mix_16h_to_32 @ int *dest, short *src, int count
|
||||
|
||||
mix_16h_to_32:
|
||||
stmfd sp!, {r4-r6,lr}
|
||||
/*
|
||||
tst r1, #2
|
||||
beq m16_32_mo_unalw
|
||||
ldrsh r4, [r1], #2
|
||||
ldr r3, [r0]
|
||||
sub r2, r2, #1
|
||||
add r3, r3, r4, asr #1
|
||||
str r3, [r0], #4
|
||||
*/
|
||||
m16_32_mo_unalw:
|
||||
subs r2, r2, #4
|
||||
bmi m16_32_end
|
||||
|
||||
m16_32_loop:
|
||||
ldmia r0, {r3-r6}
|
||||
ldmia r1!,{r12,lr}
|
||||
subs r2, r2, #4
|
||||
add r4, r4, r12,asr #17 @ we use half volume
|
||||
mov r12,r12,lsl #16
|
||||
add r3, r3, r12,asr #17
|
||||
add r6, r6, lr, asr #17
|
||||
mov lr, lr, lsl #16
|
||||
add r5, r5, lr, asr #17
|
||||
stmia r0!,{r3-r6}
|
||||
bpl m16_32_loop
|
||||
|
||||
m16_32_end:
|
||||
tst r2, #2
|
||||
beq m16_32_no_unal2
|
||||
ldr r5, [r1], #4
|
||||
ldmia r0, {r3,r4}
|
||||
mov r12,r5, lsl #16
|
||||
add r3, r3, r12,asr #17
|
||||
add r4, r4, r5, asr #17
|
||||
stmia r0!,{r3,r4}
|
||||
|
||||
m16_32_no_unal2:
|
||||
tst r2, #1
|
||||
ldmeqfd sp!, {r4-r6,pc}
|
||||
ldrsh r4, [r1], #2
|
||||
ldr r3, [r0]
|
||||
add r3, r3, r4, asr #1
|
||||
str r3, [r0], #4
|
||||
|
||||
ldmfd sp!, {r4-r6,lr}
|
||||
bx lr
|
||||
|
||||
|
||||
|
||||
.global mix_16h_to_32_s1 @ int *dest, short *src, int count
|
||||
|
||||
mix_16h_to_32_s1:
|
||||
stmfd sp!, {r4-r6,lr}
|
||||
|
||||
subs r2, r2, #4
|
||||
bmi m16_32_s1_end
|
||||
|
||||
m16_32_s1_loop:
|
||||
ldmia r0, {r3-r6}
|
||||
ldr r12,[r1], #8
|
||||
ldr lr, [r1], #8
|
||||
subs r2, r2, #4
|
||||
add r4, r4, r12,asr #17
|
||||
mov r12,r12,lsl #16
|
||||
add r3, r3, r12,asr #17 @ we use half volume
|
||||
add r6, r6, lr, asr #17
|
||||
mov lr, lr, lsl #16
|
||||
add r5, r5, lr, asr #17
|
||||
stmia r0!,{r3-r6}
|
||||
bpl m16_32_s1_loop
|
||||
|
||||
m16_32_s1_end:
|
||||
tst r2, #2
|
||||
beq m16_32_s1_no_unal2
|
||||
ldr r5, [r1], #8
|
||||
ldmia r0, {r3,r4}
|
||||
mov r12,r5, lsl #16
|
||||
add r3, r3, r12,asr #17
|
||||
add r4, r4, r5, asr #17
|
||||
stmia r0!,{r3,r4}
|
||||
|
||||
m16_32_s1_no_unal2:
|
||||
tst r2, #1
|
||||
ldmeqfd sp!, {r4-r6,pc}
|
||||
ldrsh r4, [r1], #2
|
||||
ldr r3, [r0]
|
||||
add r3, r3, r4, asr #1
|
||||
str r3, [r0], #4
|
||||
|
||||
ldmfd sp!, {r4-r6,lr}
|
||||
bx lr
|
||||
|
||||
|
||||
|
||||
.global mix_16h_to_32_s2 @ int *dest, short *src, int count
|
||||
|
||||
mix_16h_to_32_s2:
|
||||
stmfd sp!, {r4-r6,lr}
|
||||
|
||||
subs r2, r2, #4
|
||||
bmi m16_32_s2_end
|
||||
|
||||
m16_32_s2_loop:
|
||||
ldmia r0, {r3-r6}
|
||||
ldr r12,[r1], #16
|
||||
ldr lr, [r1], #16
|
||||
subs r2, r2, #4
|
||||
add r4, r4, r12,asr #17
|
||||
mov r12,r12,lsl #16
|
||||
add r3, r3, r12,asr #17 @ we use half volume
|
||||
add r6, r6, lr, asr #17
|
||||
mov lr, lr, lsl #16
|
||||
add r5, r5, lr, asr #17
|
||||
stmia r0!,{r3-r6}
|
||||
bpl m16_32_s2_loop
|
||||
|
||||
m16_32_s2_end:
|
||||
tst r2, #2
|
||||
beq m16_32_s2_no_unal2
|
||||
ldr r5, [r1], #16
|
||||
ldmia r0, {r3,r4}
|
||||
mov r12,r5, lsl #16
|
||||
add r3, r3, r12,asr #17
|
||||
add r4, r4, r5, asr #17
|
||||
stmia r0!,{r3,r4}
|
||||
|
||||
m16_32_s2_no_unal2:
|
||||
tst r2, #1
|
||||
ldmeqfd sp!, {r4-r6,pc}
|
||||
ldrsh r4, [r1], #2
|
||||
ldr r3, [r0]
|
||||
add r3, r3, r4, asr #1
|
||||
str r3, [r0], #4
|
||||
|
||||
ldmfd sp!, {r4-r6,lr}
|
||||
bx lr
|
||||
|
||||
|
||||
|
||||
@ limit
|
||||
@ reg=int_sample, lr=1, r3=tmp, kills flags
|
||||
.macro Limit reg
|
||||
add r3, lr, \reg, asr #16
|
||||
bics r3, r3, #1 @ in non-overflow conditions r3 is 0 or 1
|
||||
movne \reg, #0x8000
|
||||
submi \reg, \reg, #1
|
||||
.endm
|
||||
|
||||
|
||||
@ limit and shift up by 16
|
||||
@ reg=int_sample, lr=1, r3=tmp, kills flags
|
||||
.macro Limitsh reg
|
||||
@ movs r4, r3, asr #16
|
||||
@ cmnne r4, #1
|
||||
@ beq c32_16_no_overflow
|
||||
@ tst r4, r4
|
||||
@ mov r3, #0x8000
|
||||
@ subpl r3, r3, #1
|
||||
|
||||
add r3, lr, \reg, asr #16
|
||||
bics r3, r3, #1 @ in non-overflow conditions r3 is 0 or 1
|
||||
moveq \reg, \reg, lsl #16
|
||||
movne \reg, #0x80000000
|
||||
submi \reg, \reg, #0x00010000
|
||||
.endm
|
||||
|
||||
|
||||
@ mix 32bit audio (with 16bits really used, upper bits indicate overflow) with normal 16 bit audio with left channel only
|
||||
@ warning: this function assumes dest is word aligned
|
||||
.global mix_32_to_16l_stereo @ short *dest, int *src, int count
|
||||
|
||||
mix_32_to_16l_stereo:
|
||||
stmfd sp!, {r4-r8,lr}
|
||||
|
||||
mov lr, #1
|
||||
|
||||
mov r2, r2, lsl #1
|
||||
subs r2, r2, #4
|
||||
bmi m32_16l_st_end
|
||||
|
||||
m32_16l_st_loop:
|
||||
ldmia r0, {r8,r12}
|
||||
ldmia r1!, {r4-r7}
|
||||
mov r8, r8, lsl #16
|
||||
mov r12,r12,lsl #16
|
||||
add r4, r4, r8, asr #16
|
||||
add r5, r5, r8, asr #16
|
||||
add r6, r6, r12,asr #16
|
||||
add r7, r7, r12,asr #16
|
||||
Limitsh r4
|
||||
Limitsh r5
|
||||
Limitsh r6
|
||||
Limitsh r7
|
||||
subs r2, r2, #4
|
||||
orr r4, r5, r4, lsr #16
|
||||
orr r5, r7, r6, lsr #16
|
||||
stmia r0!, {r4,r5}
|
||||
bpl m32_16l_st_loop
|
||||
|
||||
m32_16l_st_end:
|
||||
@ check for remaining bytes to convert
|
||||
tst r2, #2
|
||||
beq m32_16l_st_no_unal2
|
||||
ldrsh r6, [r0]
|
||||
ldmia r1!,{r4,r5}
|
||||
add r4, r4, r6
|
||||
add r5, r5, r6
|
||||
Limitsh r4
|
||||
Limitsh r5
|
||||
orr r4, r5, r4, lsr #16
|
||||
str r4, [r0], #4
|
||||
|
||||
m32_16l_st_no_unal2:
|
||||
ldmfd sp!, {r4-r8,lr}
|
||||
bx lr
|
||||
|
||||
|
||||
@ mix 32bit audio (with 16bits really used, upper bits indicate overflow) with normal 16 bit audio (for mono sound)
|
||||
.global mix_32_to_16_mono @ short *dest, int *src, int count
|
||||
|
||||
mix_32_to_16_mono:
|
||||
stmfd sp!, {r4-r8,lr}
|
||||
|
||||
mov lr, #1
|
||||
|
||||
@ check if dest is word aligned
|
||||
tst r0, #2
|
||||
beq m32_16_mo_no_unalw
|
||||
ldrsh r5, [r0], #2
|
||||
ldr r4, [r1], #4
|
||||
sub r2, r2, #1
|
||||
add r4, r4, r5
|
||||
Limit r4
|
||||
strh r4, [r0], #2
|
||||
|
||||
m32_16_mo_no_unalw:
|
||||
subs r2, r2, #4
|
||||
bmi m32_16_mo_end
|
||||
|
||||
m32_16_mo_loop:
|
||||
ldmia r0, {r8,r12}
|
||||
ldmia r1!, {r4-r7}
|
||||
add r5, r5, r8, asr #16
|
||||
mov r8, r8, lsl #16
|
||||
add r4, r4, r8, asr #16
|
||||
add r7, r7, r12,asr #16
|
||||
mov r12,r12,lsl #16
|
||||
add r6, r6, r12,asr #16
|
||||
Limitsh r4
|
||||
Limitsh r5
|
||||
Limitsh r6
|
||||
Limitsh r7
|
||||
subs r2, r2, #4
|
||||
orr r4, r5, r4, lsr #16
|
||||
orr r5, r7, r6, lsr #16
|
||||
stmia r0!, {r4,r5}
|
||||
bpl m32_16_mo_loop
|
||||
|
||||
m32_16_mo_end:
|
||||
@ check for remaining bytes to convert
|
||||
tst r2, #2
|
||||
beq m32_16_mo_no_unal2
|
||||
ldr r6, [r0]
|
||||
ldmia r1!,{r4,r5}
|
||||
add r5, r5, r6, asr #16
|
||||
mov r6, r6, lsl #16
|
||||
add r4, r4, r6, asr #16
|
||||
Limitsh r4
|
||||
Limitsh r5
|
||||
orr r4, r5, r4, lsr #16
|
||||
str r4, [r0], #4
|
||||
|
||||
m32_16_mo_no_unal2:
|
||||
tst r2, #1
|
||||
ldmeqfd sp!, {r4-r8,pc}
|
||||
ldrsh r5, [r0], #2
|
||||
ldr r4, [r1], #4
|
||||
add r4, r4, r5
|
||||
Limit r4
|
||||
strh r4, [r0], #2
|
||||
|
||||
ldmfd sp!, {r4-r8,lr}
|
||||
bx lr
|
||||
|
||||
|
|
@ -258,13 +258,10 @@ void SN76496Update(short *buffer,int length,int stereo)
|
|||
|
||||
if (out > MAX_OUTPUT * STEP) out = MAX_OUTPUT * STEP;
|
||||
|
||||
out /= STEP; // will be optimized to shift
|
||||
if(stereo) {
|
||||
// only left channel for stereo (will be copied to right by ym2612 mixing code)
|
||||
if ((out /= STEP)) // will be optimized to shift; max 0x47ff = 18431
|
||||
*buffer += out;
|
||||
buffer+=2;
|
||||
} else
|
||||
*buffer++ += out;
|
||||
if(stereo) buffer+=2; // only left for stereo, to be mixed to right later
|
||||
else buffer++;
|
||||
|
||||
length--;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -23,7 +23,11 @@
|
|||
#endif
|
||||
|
||||
#include "../PicoInt.h"
|
||||
#include "../cd/pcm.h"
|
||||
#include "mix.h"
|
||||
|
||||
// master int buffer to mix to
|
||||
static int PsndBuffer[2*44100/50];
|
||||
|
||||
//int z80CycleAim = 0;
|
||||
|
||||
|
|
@ -124,9 +128,18 @@ void sound_rerate()
|
|||
{
|
||||
unsigned int state[28];
|
||||
|
||||
// not all rates are supported in MCD mode due to mp3 decoder
|
||||
if (PicoMCD & 1) {
|
||||
if (PsndRate != 11025 && PsndRate != 22050 && PsndRate != 44100) PsndRate = 22050;
|
||||
if (!(PicoOpt & 8)) PicoOpt |= 8;
|
||||
}
|
||||
|
||||
if ((PicoMCD & 1) && Pico_mcd->m.audio_track) Pico_mcd->m.audio_offset = mp3_get_offset();
|
||||
YM2612Init(Pico.m.pal ? OSC_PAL/7 : OSC_NTSC/7, PsndRate);
|
||||
// feed it back it's own registers, just like after loading state
|
||||
YM2612PicoStateLoad();
|
||||
if ((PicoMCD & 1) && Pico_mcd->m.audio_track)
|
||||
mp3_start_play(Pico_mcd->TOC.Tracks[Pico_mcd->m.audio_track].F, Pico_mcd->m.audio_offset);
|
||||
|
||||
memcpy(state, sn76496_regs, 28*4); // remember old state
|
||||
SN76496_init(Pico.m.pal ? OSC_PAL/15 : OSC_NTSC/15, PsndRate);
|
||||
|
|
@ -137,39 +150,81 @@ void sound_rerate()
|
|||
|
||||
// recalculate dac info
|
||||
dac_recalculate();
|
||||
|
||||
if (PicoMCD & 1)
|
||||
pcm_set_rate(PsndRate);
|
||||
}
|
||||
|
||||
|
||||
// This is called once per raster (aka line), but not necessarily for every line
|
||||
int sound_timers_and_dac(int raster)
|
||||
void sound_timers_and_dac(int raster)
|
||||
{
|
||||
if(raster >= 0 && PsndOut && (PicoOpt&1) && *ym2612_dacen) {
|
||||
short dout = (short) *ym2612_dacout;
|
||||
int pos=dac_info[raster], len=pos&0xf;
|
||||
short *d;
|
||||
pos>>=4;
|
||||
|
||||
if(PicoOpt&8) { // only left channel for stereo (will be copied to right by ym2612 mixing code)
|
||||
d=PsndOut+pos*2;
|
||||
while(len--) { *d = dout; d += 2; }
|
||||
} else {
|
||||
d=PsndOut+pos;
|
||||
while(len--) *d++ = dout;
|
||||
}
|
||||
}
|
||||
|
||||
//dprintf("s: %03i", raster);
|
||||
int pos, len;
|
||||
int do_dac = PsndOut && (PicoOpt&1) && *ym2612_dacen;
|
||||
// int do_pcm = PsndOut && (PicoMCD&1) && (PicoOpt&0x400);
|
||||
|
||||
// Our raster lasts 63.61323/64.102564 microseconds (NTSC/PAL)
|
||||
YM2612PicoTick(1);
|
||||
|
||||
return 0;
|
||||
if (!do_dac /*&& !do_pcm*/) return;
|
||||
|
||||
pos=dac_info[raster], len=pos&0xf;
|
||||
if (!len) return;
|
||||
|
||||
pos>>=4;
|
||||
|
||||
if (do_dac) {
|
||||
short *d = PsndOut + pos*2;
|
||||
int dout = *ym2612_dacout;
|
||||
if(PicoOpt&8) {
|
||||
// some manual loop unrolling here :)
|
||||
d[0] = dout;
|
||||
if (len > 1) {
|
||||
d[2] = dout;
|
||||
if (len > 2) {
|
||||
d[4] = dout;
|
||||
if (len > 3)
|
||||
d[6] = dout;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
short *d = PsndOut + pos;
|
||||
d[0] = dout;
|
||||
if (len > 1) {
|
||||
d[1] = dout;
|
||||
if (len > 2) {
|
||||
d[2] = dout;
|
||||
if (len > 3)
|
||||
d[3] = dout;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#if 0
|
||||
if (do_pcm) {
|
||||
int *d = PsndBuffer;
|
||||
d += (PicoOpt&8) ? pos*2 : pos;
|
||||
pcm_update(d, len, 1);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
void sound_clear(void)
|
||||
{
|
||||
if (PicoOpt & 8) memset32((int *) PsndOut, 0, PsndLen);
|
||||
else memset(PsndOut, 0, PsndLen<<1);
|
||||
// memset(PsndBuffer, 0, (PicoOpt & 8) ? (PsndLen<<3) : (PsndLen<<2));
|
||||
}
|
||||
|
||||
|
||||
int sound_render(int offset, int length)
|
||||
{
|
||||
int *buf32 = PsndBuffer+offset;
|
||||
int stereo = (PicoOpt & 8) >> 3;
|
||||
// emulating CD && PCM option enabled && PCM chip on && have enabled channels
|
||||
int do_pcm = (PicoMCD&1) && (PicoOpt&0x400) && (Pico_mcd->pcm.control & 0x80) && Pico_mcd->pcm.enabled;
|
||||
offset <<= stereo;
|
||||
|
||||
// PSG
|
||||
|
|
@ -177,16 +232,20 @@ int sound_render(int offset, int length)
|
|||
SN76496Update(PsndOut+offset, length, stereo);
|
||||
|
||||
// Add in the stereo FM buffer
|
||||
if(PicoOpt & 1) {
|
||||
YM2612UpdateOne(PsndOut+offset, length, stereo);
|
||||
} else {
|
||||
// YM2612 upmixes to stereo, so we have to do this manually here
|
||||
int i;
|
||||
short *s = PsndOut+offset;
|
||||
for (i = 0; i < length; i++) {
|
||||
*(s+1) = *s; s+=2;
|
||||
}
|
||||
}
|
||||
if (PicoOpt & 1)
|
||||
YM2612UpdateOne(buf32, length, stereo, 1);
|
||||
|
||||
if (do_pcm)
|
||||
pcm_update(buf32, length, stereo);
|
||||
|
||||
// CDDA audio
|
||||
// if ((PicoMCD & 1) && (PicoOpt & 0x800))
|
||||
// mp3_update(PsndBuffer+offset, length, stereo);
|
||||
|
||||
// convert + limit to normal 16bit output
|
||||
if (stereo)
|
||||
mix_32_to_16l_stereo(PsndOut+offset, buf32, length);
|
||||
else mix_32_to_16_mono (PsndOut+offset, buf32, length);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -11,8 +11,9 @@
|
|||
extern "C" {
|
||||
#endif
|
||||
|
||||
int sound_timers_and_dac(int raster);
|
||||
void sound_timers_and_dac(int raster);
|
||||
int sound_render(int offset, int length);
|
||||
void sound_clear(void);
|
||||
|
||||
//int YM2612PicoTick(int n);
|
||||
|
||||
|
|
|
|||
|
|
@ -112,6 +112,7 @@
|
|||
#include <math.h>
|
||||
|
||||
#include "ym2612.h"
|
||||
#include "mix.h"
|
||||
|
||||
#ifndef EXTERNAL_YM2612
|
||||
#include <stdlib.h>
|
||||
|
|
@ -120,7 +121,6 @@ static YM2612 ym2612;
|
|||
|
||||
#else
|
||||
extern YM2612 *ym2612_940;
|
||||
extern int *mix_buffer;
|
||||
#define ym2612 (*ym2612_940)
|
||||
|
||||
#endif
|
||||
|
|
@ -1584,13 +1584,12 @@ INT32 *ym2612_dacout;
|
|||
|
||||
|
||||
/* Generate samples for YM2612 */
|
||||
void YM2612UpdateOne_(short *buffer, int length, int stereo)
|
||||
int YM2612UpdateOne_(int *buffer, int length, int stereo, int is_buf_empty)
|
||||
{
|
||||
int pan;
|
||||
#ifndef EXTERNAL_YM2612
|
||||
int i;
|
||||
static int *mix_buffer = 0, mix_buffer_length = 0;
|
||||
#endif
|
||||
|
||||
// if !is_buf_empty, it means it has valid samples to mix with, else it may contain trash
|
||||
if (is_buf_empty) memset32(buffer, 0, length<<stereo);
|
||||
|
||||
/* refresh PG and EG */
|
||||
refresh_fc_eg_chan( &ym2612.CH[0] );
|
||||
|
|
@ -1613,44 +1612,15 @@ void YM2612UpdateOne_(short *buffer, int length, int stereo)
|
|||
pan = ym2612.OPN.pan;
|
||||
if (stereo) stereo = 1;
|
||||
|
||||
#ifndef EXTERNAL_YM2612
|
||||
if (mix_buffer_length < length) {
|
||||
mix_buffer = realloc(mix_buffer, length*4<<stereo); // FIXME: need to free this at some point
|
||||
if (!mix_buffer) return;
|
||||
mix_buffer_length = length;
|
||||
}
|
||||
#endif
|
||||
memset(mix_buffer, 0, length*4<<stereo);
|
||||
/* mix to 32bit dest */
|
||||
chan_render(buffer, length, &ym2612.CH[0], stereo|((pan&0x003)<<4)); // flags: stereo, lastchan, disabled, ?, pan_r, pan_l
|
||||
chan_render(buffer, length, &ym2612.CH[1], stereo|((pan&0x00c)<<2));
|
||||
chan_render(buffer, length, &ym2612.CH[2], stereo|((pan&0x030) ));
|
||||
chan_render(buffer, length, &ym2612.CH[3], stereo|((pan&0x0c0)>>2));
|
||||
chan_render(buffer, length, &ym2612.CH[4], stereo|((pan&0x300)>>4));
|
||||
chan_render(buffer, length, &ym2612.CH[5], stereo|((pan&0xc00)>>6)|(ym2612.dacen<<2)|2);
|
||||
|
||||
/* mix to 32bit temporary buffer */
|
||||
chan_render(mix_buffer, length, &ym2612.CH[0], stereo|((pan&0x003)<<4)); // flags: stereo, lastchan, disabled, ?, pan_r, pan_l
|
||||
chan_render(mix_buffer, length, &ym2612.CH[1], stereo|((pan&0x00c)<<2));
|
||||
chan_render(mix_buffer, length, &ym2612.CH[2], stereo|((pan&0x030) ));
|
||||
chan_render(mix_buffer, length, &ym2612.CH[3], stereo|((pan&0x0c0)>>2));
|
||||
chan_render(mix_buffer, length, &ym2612.CH[4], stereo|((pan&0x300)>>4));
|
||||
chan_render(mix_buffer, length, &ym2612.CH[5], stereo|((pan&0xc00)>>6)|(ym2612.dacen<<2)|2);
|
||||
|
||||
#ifndef EXTERNAL_YM2612
|
||||
/* limit and mix to output buffer */
|
||||
if (stereo) {
|
||||
int *mb = mix_buffer;
|
||||
for (i = length; i > 0; i--) {
|
||||
int l, r;
|
||||
l = r = *buffer;
|
||||
l += *mb++, r += *mb++;
|
||||
Limit( l, MAXOUT, MINOUT );
|
||||
Limit( r, MAXOUT, MINOUT );
|
||||
*buffer++ = l; *buffer++ = r;
|
||||
}
|
||||
} else {
|
||||
for (i = 0; i < length; i++) {
|
||||
int l = mix_buffer[i];
|
||||
l += buffer[i];
|
||||
Limit( l, MAXOUT, MINOUT );
|
||||
buffer[i] = l;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
return 1; // buffer updated
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -142,7 +142,7 @@ typedef struct
|
|||
|
||||
void YM2612Init_(int baseclock, int rate);
|
||||
void YM2612ResetChip_(void);
|
||||
void YM2612UpdateOne_(short *buffer, int length, int stereo);
|
||||
int YM2612UpdateOne_(int *buffer, int length, int stereo, int is_buf_empty);
|
||||
|
||||
int YM2612Write_(unsigned int a, unsigned int v);
|
||||
unsigned char YM2612Read_(void);
|
||||
|
|
@ -172,9 +172,9 @@ extern int PicoOpt;
|
|||
if (PicoOpt&0x200) YM2612ResetChip_940(); \
|
||||
else YM2612ResetChip_(); \
|
||||
}
|
||||
#define YM2612UpdateOne(buffer,length,stereo) { \
|
||||
if (PicoOpt&0x200) YM2612UpdateOne_940(buffer, length, stereo); \
|
||||
else YM2612UpdateOne_(buffer, length, stereo); \
|
||||
#define YM2612UpdateOne(buffer,length,stereo,is_buf_empty) { \
|
||||
if (PicoOpt&0x200) YM2612UpdateOne_940(buffer, length, stereo, is_buf_empty); \
|
||||
else YM2612UpdateOne_(buffer, length, stereo, is_buf_empty); \
|
||||
}
|
||||
#define YM2612Write(a,v) \
|
||||
(PicoOpt&0x200) ? YM2612Write_940(a, v) : YM2612Write_(a, v)
|
||||
|
|
|
|||
|
|
@ -14,6 +14,9 @@
|
|||
#include "asmutils.h"
|
||||
#include "../../Pico/PicoInt.h"
|
||||
|
||||
// tmp
|
||||
#include "../../Pico/sound/mix.h"
|
||||
|
||||
/* we will need some gp2x internals here */
|
||||
extern volatile unsigned short *gp2x_memregs; /* from minimal library rlyeh */
|
||||
extern volatile unsigned long *gp2x_memregl;
|
||||
|
|
@ -223,6 +226,7 @@ int YM2612PicoTick_940(int n)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int g_busy = 10;
|
||||
|
||||
static void wait_busy_940(void)
|
||||
{
|
||||
|
|
@ -239,8 +243,9 @@ static void wait_busy_940(void)
|
|||
}
|
||||
printf("wait iterations: %i\n", i);
|
||||
#else
|
||||
for (i = 0; shared_ctl->busy && i < 0x10000; i++)
|
||||
for (i = 0; /*shared_ctl->busy*/gp2x_memregs[0x3B3E>>1] && i < 0x10000; i++)
|
||||
spend_cycles(8*1024); // tested to be best for mp3 dec
|
||||
//printf("i = 0x%x\n", i);
|
||||
if (i < 0x10000) return;
|
||||
|
||||
/* 940 crashed */
|
||||
|
|
@ -248,6 +253,19 @@ static void wait_busy_940(void)
|
|||
for (i = 0; i < 8; i++)
|
||||
printf("%i ", shared_ctl->vstarts[i]);
|
||||
printf(")\n");
|
||||
printf("irq pending flags: DUALCPU %04x (see 15?), SRCPND %08lx (see 26), INTPND %08lx\n",
|
||||
gp2x_memregs[0x3b46>>1], gp2x_memregl[0x4500>>2], gp2x_memregl[0x4510>>2]);
|
||||
printf("last irq PC: %08x, lastjob: 0x%03x, busy: %x, lastbusy: %x, g_busy: %x\n", shared_ctl->last_irq_pc,
|
||||
shared_ctl->lastjob, gp2x_memregs[0x3B3E>>1]/*shared_ctl->busy*/, shared_ctl->lastbusy, g_busy);
|
||||
printf("trying to interrupt..\n");
|
||||
gp2x_memregs[0x3B3E>>1] = 0xffff;
|
||||
for (i = 0; /*shared_ctl->busy*/gp2x_memregs[0x3B3E>>1] && i < 0x10000; i++)
|
||||
spend_cycles(8*1024);
|
||||
printf("i = 0x%x\n", i);
|
||||
printf("irq pending flags: DUALCPU %04x (see 15?), SRCPND %08lx (see 26), INTPND %08lx\n",
|
||||
gp2x_memregs[0x3b46>>1], gp2x_memregl[0x4500>>2], gp2x_memregl[0x4510>>2]);
|
||||
printf("last irq PC: %08x, lastjob: 0x%03x, busy: %x\n", shared_ctl->last_irq_pc, shared_ctl->lastjob, gp2x_memregs[0x3B3E>>1]/*shared_ctl->busy*/);
|
||||
|
||||
strcpy(menuErrorMsg, "940 crashed.");
|
||||
engineState = PGS_Menu;
|
||||
crashed_940 = 1;
|
||||
|
|
@ -257,10 +275,17 @@ static void wait_busy_940(void)
|
|||
|
||||
static void add_job_940(int job0, int job1)
|
||||
{
|
||||
/* if (gp2x_memregs[0x3b46>>1] || shared_ctl->busy)
|
||||
{
|
||||
printf("!!add_job_940: irq pending flags: DUALCPU %04x (see 15?), SRCPND %08lx (see 26), INTPND %08lx, busy: %x\n",
|
||||
gp2x_memregs[0x3b46>>1], gp2x_memregl[0x4500>>2], gp2x_memregl[0x4510>>2], shared_ctl->busy);
|
||||
}
|
||||
*/
|
||||
shared_ctl->jobs[0] = job0;
|
||||
shared_ctl->jobs[1] = job1;
|
||||
shared_ctl->busy = 1;
|
||||
gp2x_memregs[0x3B3E>>1] = 0xffff; // cause an IRQ for 940
|
||||
//shared_ctl->busy = ++g_busy; // 1;
|
||||
gp2x_memregs[0x3B3E>>1] = ++g_busy; // set busy flag
|
||||
// gp2x_memregs[0x3B3E>>1] = 0xffff; // cause interrupt
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -268,7 +293,7 @@ void YM2612PicoStateLoad_940(void)
|
|||
{
|
||||
int i, old_A1 = addr_A1;
|
||||
|
||||
if (shared_ctl->busy) wait_busy_940();
|
||||
if (/*shared_ctl->busy*/gp2x_memregs[0x3B3E>>1]) wait_busy_940();
|
||||
|
||||
// feed all the registers and update internal state
|
||||
for(i = 0; i < 0x100; i++) {
|
||||
|
|
@ -310,10 +335,8 @@ void YM2612Init_940(int baseclock, int rate)
|
|||
Reset940(1, 2);
|
||||
Pause940(1);
|
||||
|
||||
gp2x_memregs[0x3B46>>1] = 0xffff; // clear pending DUALCPU interrupts for 940
|
||||
gp2x_memregs[0x3B42>>1] = 0xffff; // enable DUALCPU interrupts for 940
|
||||
|
||||
gp2x_memregl[0x4508>>2] = ~(1<<26); // unmask DUALCPU ints in the undocumented 940's interrupt controller
|
||||
gp2x_memregs[0x3B40>>1] = 0; // disable DUALCPU interrupts for 920
|
||||
gp2x_memregs[0x3B42>>1] = 1; // enable DUALCPU interrupts for 940
|
||||
|
||||
if (shared_mem == NULL)
|
||||
{
|
||||
|
|
@ -388,7 +411,13 @@ void YM2612Init_940(int baseclock, int rate)
|
|||
shared_ctl->rate = rate;
|
||||
shared_ctl->jobs[0] = JOB940_INITALL;
|
||||
shared_ctl->jobs[1] = 0;
|
||||
shared_ctl->busy = 1;
|
||||
//shared_ctl->busy = 1;
|
||||
gp2x_memregs[0x3B3E>>1] = 1; // set busy flag
|
||||
|
||||
gp2x_memregs[0x3B46>>1] = 0xffff; // clear pending DUALCPU interrupts for 940
|
||||
gp2x_memregl[0x4500>>2] = 0; // clear pending IRQs in SRCPND
|
||||
gp2x_memregl[0x4510>>2] = 0; // clear pending IRQs in INTPND
|
||||
gp2x_memregl[0x4508>>2] = ~(1<<26); // unmask DUALCPU ints in the undocumented 940's interrupt controller
|
||||
|
||||
/* start the 940 */
|
||||
Reset940(0, 2);
|
||||
|
|
@ -406,7 +435,7 @@ void YM2612ResetChip_940(void)
|
|||
return;
|
||||
}
|
||||
|
||||
if (shared_ctl->busy) wait_busy_940();
|
||||
if (/*shared_ctl->busy*/gp2x_memregs[0x3B3E>>1]) wait_busy_940();
|
||||
|
||||
internal_reset();
|
||||
|
||||
|
|
@ -414,104 +443,93 @@ void YM2612ResetChip_940(void)
|
|||
}
|
||||
|
||||
|
||||
static void mix_samples(short *dest_buf, int *ym_buf, short *mp3_buf, int len, int stereo)
|
||||
//extern int pcm_buffer[2*44100/50];
|
||||
/*
|
||||
static void mix_samples(int *dest_buf, short *mp3_buf, int len, int stereo)
|
||||
{
|
||||
if (mp3_buf)
|
||||
{
|
||||
if (stereo)
|
||||
{
|
||||
for (; len > 0; len--)
|
||||
{
|
||||
int l, r, lm, rm;
|
||||
l = r = *dest_buf;
|
||||
l += *ym_buf++; r += *ym_buf++;
|
||||
lm = *mp3_buf++; rm = *mp3_buf++;
|
||||
l += lm - lm/2; r += rm - rm/2;
|
||||
Limit( l, MAXOUT, MINOUT );
|
||||
Limit( r, MAXOUT, MINOUT );
|
||||
*dest_buf++ = l; *dest_buf++ = r;
|
||||
}
|
||||
} else {
|
||||
for (; len > 0; len--)
|
||||
{
|
||||
// TODO: normalize
|
||||
int l = *ym_buf++;
|
||||
l += *dest_buf;
|
||||
l += *mp3_buf++;
|
||||
Limit( l, MAXOUT, MINOUT );
|
||||
*dest_buf++ = l;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if (stereo)
|
||||
{
|
||||
for (; len > 0; len--)
|
||||
{
|
||||
int l, r;
|
||||
l = r = *dest_buf;
|
||||
l += *ym_buf++, r += *ym_buf++;
|
||||
Limit( l, MAXOUT, MINOUT );
|
||||
Limit( r, MAXOUT, MINOUT );
|
||||
*dest_buf++ = l; *dest_buf++ = r;
|
||||
}
|
||||
} else {
|
||||
for (; len > 0; len--)
|
||||
{
|
||||
int l = *ym_buf++;
|
||||
l += *dest_buf;
|
||||
Limit( l, MAXOUT, MINOUT );
|
||||
*dest_buf++ = l;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
// int *pcm = pcm_buffer + offset * 2;
|
||||
|
||||
if (stereo)
|
||||
{
|
||||
for (; len > 0; len--)
|
||||
{
|
||||
int lm, rm;
|
||||
lm = *mp3_buf++; rm = *mp3_buf++;
|
||||
*dest_buf++ += lm - lm/2; *dest_buf++ += rm - rm/2;
|
||||
}
|
||||
} else {
|
||||
for (; len > 0; len--)
|
||||
{
|
||||
int l = *mp3_buf++;
|
||||
*dest_buf++ = l - l/2;
|
||||
}
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
// here we assume that length is different between games, but constant in one game
|
||||
|
||||
static int mp3_samples_ready = 0, mp3_buffer_offs = 0;
|
||||
static int mp3_play_bufsel = 0;
|
||||
|
||||
void YM2612UpdateOne_940(short *buffer, int length, int stereo)
|
||||
int YM2612UpdateOne_940(int *buffer, int length, int stereo, int is_buf_empty)
|
||||
{
|
||||
int cdda_on, *ym_buffer = shared_data->mix_buffer, mp3_job = 0;
|
||||
int length_mp3 = Pico.m.pal ? 44100/50 : 44100/60; // mp3s are locked to 44100Hz stereo
|
||||
int *ym_buf = shared_data->mix_buffer;
|
||||
// int *dest_buf = buffer;
|
||||
int cdda_on, mp3_job = 0;
|
||||
// int len;
|
||||
|
||||
// emulating CD, enabled in opts, not data track, CDC is reading, playback was started, track not ended
|
||||
cdda_on = (PicoMCD & 1) && (PicoOpt & 0x800) && !(Pico_mcd->s68k_regs[0x36] & 1) &&
|
||||
(Pico_mcd->scd.Status_CDC & 1) && loaded_mp3;
|
||||
|
||||
//printf("YM2612UpdateOne_940()\n");
|
||||
if (shared_ctl->busy) wait_busy_940();
|
||||
if (/*shared_ctl->busy*/gp2x_memregs[0x3B3E>>1]) wait_busy_940();
|
||||
|
||||
//printf("940 (cnt: %i, wc: %i, ve: ", shared_ctl->loopc, shared_ctl->waitc);
|
||||
//for (i = 0; i < 8; i++)
|
||||
// printf("%i ", shared_ctl->vstarts[i]);
|
||||
//printf(")\n");
|
||||
// track ended?
|
||||
cdda_on = cdda_on && shared_ctl->mp3_offs < shared_ctl->mp3_len;
|
||||
|
||||
// emulatind MCD, cdda enabled in config, not data track, CDC is reading, playback was started, track not ended
|
||||
cdda_on = (PicoMCD & 1) && (currentConfig.EmuOpt&0x800) && !(Pico_mcd->s68k_regs[0x36] & 1) &&
|
||||
(Pico_mcd->scd.Status_CDC & 1) && loaded_mp3 && shared_ctl->mp3_offs < shared_ctl->mp3_len;
|
||||
// mix in ym buffer
|
||||
if (is_buf_empty) memcpy32(buffer, ym_buf, length<<stereo);
|
||||
// else TODO
|
||||
|
||||
/* mix data from previous go */
|
||||
if (cdda_on && mp3_samples_ready >= length)
|
||||
// for (len = length << stereo; len > 0; len--)
|
||||
// {
|
||||
// *dest_buf++ += *ym_buf++;
|
||||
// }
|
||||
|
||||
/* mix mp3 data, only stereo */
|
||||
if (cdda_on && mp3_samples_ready >= length_mp3)
|
||||
{
|
||||
if (1152 - mp3_buffer_offs >= length) {
|
||||
mix_samples(buffer, ym_buffer, shared_data->mp3_buffer[mp3_play_bufsel] + mp3_buffer_offs*2, length, stereo);
|
||||
int shr = 0;
|
||||
void (*mix_samples)(int *dest_buf, short *mp3_buf, int count) = mix_16h_to_32;
|
||||
if (PsndRate == 22050) { mix_samples = mix_16h_to_32_s1; shr = 1; }
|
||||
else if (PsndRate == 11025) { mix_samples = mix_16h_to_32_s2; shr = 2; }
|
||||
|
||||
mp3_buffer_offs += length;
|
||||
if (1152 - mp3_buffer_offs >= length_mp3) {
|
||||
mix_samples(buffer, shared_data->mp3_buffer[mp3_play_bufsel] + mp3_buffer_offs*2, (length_mp3>>shr)<<1);
|
||||
|
||||
mp3_buffer_offs += length_mp3;
|
||||
} else {
|
||||
// collect from both buffers..
|
||||
int left = 1152 - mp3_buffer_offs;
|
||||
mix_samples(buffer, ym_buffer, shared_data->mp3_buffer[mp3_play_bufsel] + mp3_buffer_offs*2, left, stereo);
|
||||
mp3_play_bufsel ^= 1;
|
||||
mp3_buffer_offs = length - left;
|
||||
mix_samples(buffer + left * 2, ym_buffer + left * 2,
|
||||
shared_data->mp3_buffer[mp3_play_bufsel], mp3_buffer_offs, stereo);
|
||||
}
|
||||
mp3_samples_ready -= length;
|
||||
if (mp3_play_bufsel == 0)
|
||||
{
|
||||
mix_samples(buffer, shared_data->mp3_buffer[0] + mp3_buffer_offs*2, (length_mp3>>shr)<<1);
|
||||
mp3_buffer_offs = length_mp3 - left;
|
||||
mp3_play_bufsel = 1;
|
||||
} else {
|
||||
mix_samples(buffer, ym_buffer, 0, length, stereo);
|
||||
mix_samples(buffer, shared_data->mp3_buffer[1] + mp3_buffer_offs*2, (left>>shr)<<1);
|
||||
mp3_buffer_offs = length_mp3 - left;
|
||||
mix_samples(buffer + ((left>>shr)<<1),
|
||||
shared_data->mp3_buffer[0], (mp3_buffer_offs>>shr)<<1);
|
||||
mp3_play_bufsel = 0;
|
||||
}
|
||||
}
|
||||
mp3_samples_ready -= length_mp3;
|
||||
}
|
||||
|
||||
//printf("new writes: %i\n", writebuff_ptr);
|
||||
if (shared_ctl->writebuffsel == 1) {
|
||||
shared_ctl->writebuff0[writebuff_ptr] = 0xffff;
|
||||
} else {
|
||||
|
|
@ -525,7 +543,7 @@ void YM2612UpdateOne_940(short *buffer, int length, int stereo)
|
|||
shared_ctl->stereo = stereo;
|
||||
|
||||
// make sure we will have enough mp3 samples next frame
|
||||
if (cdda_on && mp3_samples_ready < length)
|
||||
if (cdda_on && mp3_samples_ready < length_mp3)
|
||||
{
|
||||
shared_ctl->mp3_buffsel ^= 1;
|
||||
mp3_job = JOB940_MP3DECODE;
|
||||
|
|
@ -536,6 +554,8 @@ void YM2612UpdateOne_940(short *buffer, int length, int stereo)
|
|||
//spend_cycles(512);
|
||||
//printf("SRCPND: %08lx, INTMODE: %08lx, INTMASK: %08lx, INTPEND: %08lx\n",
|
||||
// gp2x_memregl[0x4500>>2], gp2x_memregl[0x4504>>2], gp2x_memregl[0x4508>>2], gp2x_memregl[0x4510>>2]);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -551,11 +571,11 @@ void mp3_start_play(FILE *f, int pos) // pos is 0-1023
|
|||
|
||||
if (loaded_mp3 != f)
|
||||
{
|
||||
printf("loading mp3... "); fflush(stdout);
|
||||
// printf("loading mp3... "); fflush(stdout);
|
||||
fseek(f, 0, SEEK_SET);
|
||||
fread(mp3_mem, 1, MP3_SIZE_MAX, f);
|
||||
if (feof(f)) printf("done.\n");
|
||||
else printf("done. mp3 too large, not all data loaded.\n");
|
||||
// if (feof(f)) printf("done.\n");
|
||||
// else printf("done. mp3 too large, not all data loaded.\n");
|
||||
shared_ctl->mp3_len = ftell(f);
|
||||
loaded_mp3 = f;
|
||||
}
|
||||
|
|
@ -566,7 +586,7 @@ void mp3_start_play(FILE *f, int pos) // pos is 0-1023
|
|||
byte_offs *= pos;
|
||||
byte_offs >>= 6;
|
||||
}
|
||||
printf("mp3 pos1024: %i, byte_offs %i/%i\n", pos, byte_offs, shared_ctl->mp3_len);
|
||||
// printf("mp3 pos1024: %i, byte_offs %i/%i\n", pos, byte_offs, shared_ctl->mp3_len);
|
||||
|
||||
shared_ctl->mp3_offs = byte_offs;
|
||||
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
void YM2612Init_940(int baseclock, int rate);
|
||||
void YM2612ResetChip_940(void);
|
||||
void YM2612UpdateOne_940(short *buffer, int length, int stereo);
|
||||
int YM2612UpdateOne_940(int *buffer, int length, int stereo, int is_buf_empty);
|
||||
|
||||
int YM2612Write_940(unsigned int a, unsigned int v);
|
||||
unsigned char YM2612Read_940(void);
|
||||
|
|
|
|||
|
|
@ -41,7 +41,7 @@ OBJS += ../../Pico/Area.o ../../Pico/Cart.o ../../Pico/Utils.o ../../Pico/Memory
|
|||
# Pico - CD
|
||||
OBJS += ../../Pico/cd/Pico.o ../../Pico/cd/Memory.o ../../Pico/cd/Sek.o ../../Pico/cd/LC89510.o \
|
||||
../../Pico/cd/cd_sys.o ../../Pico/cd/cd_file.o ../../Pico/cd/gfx_cd.o \
|
||||
../../Pico/cd/Area.o ../../Pico/cd/Misc.o
|
||||
../../Pico/cd/Area.o ../../Pico/cd/Misc.o ../../Pico/cd/pcm.o
|
||||
# asm stuff
|
||||
ifeq "$(asm_render)" "1"
|
||||
DEFINC += -D_ASM_DRAW_C
|
||||
|
|
@ -56,6 +56,7 @@ DEFINC += -D_ASM_YM2612_C
|
|||
OBJS += ../../Pico/sound/ym2612_asm.o
|
||||
endif
|
||||
# Pico - sound
|
||||
OBJS += ../../Pico/sound/mix_asm.o
|
||||
OBJS += ../../Pico/sound/sound.o ../../Pico/sound/sn76496.o ../../Pico/sound/ym2612.o
|
||||
# zlib
|
||||
OBJS += ../../zlib/gzio.o ../../zlib/inffast.o ../../zlib/inflate.o ../../zlib/inftrees.o ../../zlib/trees.o \
|
||||
|
|
@ -94,7 +95,7 @@ ifeq "$(up)" "1"
|
|||
@cmd //C copy $@ \\\\10.0.1.2\\gp2x\\mnt\\sd\\games\\PicoDrive\\
|
||||
endif
|
||||
|
||||
up:
|
||||
up: PicoDrive.gpe
|
||||
@cp -v PicoDrive.gpe /mnt/gp2x/mnt/sd/games/PicoDrive/
|
||||
|
||||
# @cmd //C copy PicoDrive.gpe \\\\10.0.1.2\\gp2x\\mnt\\sd\\games\\PicoDrive\\
|
||||
|
|
@ -124,6 +125,9 @@ testrefr.gpe : test.o gp2x.o asmutils.o
|
|||
../../Pico/sound/ym2612_asm.o : ../../Pico/sound/ym2612.s
|
||||
@echo $<
|
||||
@$(AS) $(ASOPT) $< -o $@
|
||||
../../Pico/sound/mix_asm.o : ../../Pico/sound/mix.s
|
||||
@echo $<
|
||||
@$(AS) $(ASOPT) $< -o $@
|
||||
|
||||
# build Cyclone
|
||||
../../cpu/Cyclone/proj/Cyclone.s :
|
||||
|
|
|
|||
|
|
@ -10,3 +10,5 @@ void vidCpyM2_40col(void *dest, void *src);
|
|||
void vidCpyM2_32col(void *dest, void *src);
|
||||
void vidCpyM2_32col_nobord(void *dest, void *src);
|
||||
void spend_cycles(int c); // utility
|
||||
void flushcache(void);
|
||||
|
||||
|
|
|
|||
|
|
@ -3,6 +3,7 @@
|
|||
@ (c) Copyright 2006, notaz
|
||||
@ All Rights Reserved
|
||||
|
||||
@ vim:filetype=armasm
|
||||
|
||||
@ Convert 0000bbb0 ggg0rrr0 0000bbb0 ggg0rrr0
|
||||
@ to 00000000 rrr00000 ggg00000 bbb00000 ...
|
||||
|
|
@ -197,7 +198,6 @@ vidCpyM2_32col_nobord:
|
|||
b vidCpyM2_32_loop_out
|
||||
|
||||
|
||||
@ test
|
||||
.global spend_cycles @ c
|
||||
|
||||
spend_cycles:
|
||||
|
|
@ -208,3 +208,12 @@ spend_cycles:
|
|||
bpl .sc_loop
|
||||
|
||||
bx lr
|
||||
|
||||
|
||||
@ test
|
||||
.global flushcache
|
||||
|
||||
flushcache:
|
||||
swi #0x9f0002
|
||||
mov pc, lr
|
||||
|
||||
|
|
|
|||
|
|
@ -57,17 +57,18 @@ static void mp3_decode(void)
|
|||
}
|
||||
|
||||
|
||||
void Main940(int startvector)
|
||||
void Main940(int startvector, int pc_at_irq)
|
||||
{
|
||||
ym2612_940 = &shared_data->ym2612;
|
||||
mix_buffer = shared_data->mix_buffer;
|
||||
|
||||
// debug
|
||||
shared_ctl->vstarts[startvector]++;
|
||||
shared_ctl->last_irq_pc = pc_at_irq;
|
||||
// asm volatile ("mcr p15, 0, r0, c7, c10, 4" ::: "r0");
|
||||
|
||||
|
||||
for (;;)
|
||||
// for (;;)
|
||||
{
|
||||
int job_num = 0;
|
||||
/*
|
||||
|
|
@ -77,13 +78,18 @@ void Main940(int startvector)
|
|||
spend_cycles(8*1024);
|
||||
}
|
||||
*/
|
||||
/*
|
||||
if (!shared_ctl->busy)
|
||||
{
|
||||
wait_irq();
|
||||
}
|
||||
shared_ctl->lastbusy = shared_ctl->busy;
|
||||
*/
|
||||
|
||||
for (job_num = 0; job_num < MAX_940JOBS; job_num++)
|
||||
{
|
||||
shared_ctl->lastjob = (job_num << 8) | shared_ctl->jobs[job_num];
|
||||
|
||||
switch (shared_ctl->jobs[job_num])
|
||||
{
|
||||
case JOB940_INITALL:
|
||||
|
|
@ -122,7 +128,7 @@ void Main940(int startvector)
|
|||
YM2612Write_(d >> 8, d);
|
||||
}
|
||||
|
||||
YM2612UpdateOne_(0, shared_ctl->length, shared_ctl->stereo);
|
||||
YM2612UpdateOne_(mix_buffer, shared_ctl->length, shared_ctl->stereo, 1);
|
||||
break;
|
||||
}
|
||||
|
||||
|
|
@ -138,7 +144,10 @@ void Main940(int startvector)
|
|||
// cache_clean_flush();
|
||||
|
||||
shared_ctl->loopc++;
|
||||
shared_ctl->busy = 0;
|
||||
|
||||
// // shared_ctl->busy = 0; // shared mem is not reliable?
|
||||
|
||||
wait_irq();
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,5 +1,7 @@
|
|||
.global code940
|
||||
|
||||
.equ mmsp2_regs, (0xc0000000-0x02000000) @ assume we live @ 0x2000000 bank
|
||||
|
||||
code940: @ interrupt table:
|
||||
b .b_reset @ reset
|
||||
b .b_undef @ undefined instructions
|
||||
|
|
@ -33,7 +35,7 @@ code940: @ interrupt table:
|
|||
mov r12, #6
|
||||
mov sp, #0x100000 @ reset stack
|
||||
sub sp, sp, #4
|
||||
mov r1, #0xbe000000 @ assume we live @ 0x2000000 bank
|
||||
mov r1, #mmsp2_regs
|
||||
orr r2, r1, #0x3B00
|
||||
orr r2, r2, #0x0046
|
||||
mvn r3, #0
|
||||
|
|
@ -69,7 +71,7 @@ code940: @ interrupt table:
|
|||
|
||||
@ set up region 3: 64k 0xbe000000-0xbe010000 (hw control registers)
|
||||
mov r0, #(0x0f<<1)|1
|
||||
orr r0, r0, #0xbe000000
|
||||
orr r0, r0, #mmsp2_regs
|
||||
mcr p15, 0, r0, c6, c3, 0
|
||||
mcr p15, 0, r0, c6, c3, 1
|
||||
|
||||
|
|
@ -88,7 +90,7 @@ code940: @ interrupt table:
|
|||
mov r0, #(1<<1)
|
||||
mcr p15, 0, r0, c3, c0, 0
|
||||
|
||||
@ set protection, allow accsess only to regions 1 and 2
|
||||
@ set protection, allow access only to regions 1 and 2
|
||||
mov r0, #(3<<8)|(3<<6)|(3<<4)|(3<<2)|(0) @ data: [full, full, full, full, no access] for regions [4 3 2 1 0]
|
||||
mcr p15, 0, r0, c5, c0, 0
|
||||
mov r0, #(0<<8)|(0<<6)|(0<<4)|(3<<2)|(0) @ instructions: [no access, no, no, full, no]
|
||||
|
|
@ -98,9 +100,9 @@ code940: @ interrupt table:
|
|||
orr r0, r0, #1 @ 0x00000001: enable protection unit
|
||||
orr r0, r0, #4 @ 0x00000004: enable D cache
|
||||
orr r0, r0, #0x1000 @ 0x00001000: enable I cache
|
||||
bic r0, r0, #0xC0000000
|
||||
orr r0, r0, #0x40000000 @ 0x40000000: synchronous, faster?
|
||||
@ orr r0, r0, #0xC0000000 @ 0xC0000000: async
|
||||
@ bic r0, r0, #0xC0000000
|
||||
@ orr r0, r0, #0x40000000 @ 0x40000000: synchronous, faster?
|
||||
orr r0, r0, #0xC0000000 @ 0xC0000000: async
|
||||
mcr p15, 0, r0, c1, c0, 0 @ set control reg
|
||||
|
||||
@ flush (invalidate) the cache (just in case)
|
||||
|
|
@ -109,11 +111,13 @@ code940: @ interrupt table:
|
|||
|
||||
.Enter:
|
||||
mov r0, r12
|
||||
mov r1, lr
|
||||
bl Main940
|
||||
|
||||
@ we should never get here
|
||||
.b_deadloop:
|
||||
b .b_deadloop
|
||||
@.b_deadloop:
|
||||
@ b .b_deadloop
|
||||
b .b_reserved
|
||||
|
||||
|
||||
|
||||
|
|
@ -171,6 +175,16 @@ cf_inner_loop:
|
|||
.global wait_irq
|
||||
|
||||
wait_irq:
|
||||
mov r0, #mmsp2_regs
|
||||
orr r0, r0, #0x3B00
|
||||
orr r1, r0, #0x0042
|
||||
mov r3, #0
|
||||
strh r3, [r1] @ disable interrupts
|
||||
orr r2, r0, #0x003E
|
||||
strh r3, [r2] @ remove busy flag
|
||||
mov r3, #1
|
||||
strh r3, [r1] @ enable interrupts
|
||||
|
||||
mrs r0, cpsr
|
||||
bic r0, r0, #0x80
|
||||
msr cpsr_c, r0 @ enable interrupts
|
||||
|
|
@ -178,6 +192,8 @@ wait_irq:
|
|||
mov r0, #0
|
||||
mcr p15, 0, r0, c7, c0, 4 @ wait for IRQ
|
||||
@ mcr p15, 0, r0, c15, c8, 2
|
||||
nop
|
||||
nop
|
||||
b .b_reserved
|
||||
|
||||
.pool
|
||||
|
|
|
|||
|
|
@ -24,7 +24,7 @@ typedef struct
|
|||
typedef struct
|
||||
{
|
||||
int jobs[MAX_940JOBS]; /* jobs for second core */
|
||||
int busy; /* busy status of the 940 core */
|
||||
int busy_; /* unused */
|
||||
int length; /* number of samples to mix (882 max) */
|
||||
int stereo; /* mix samples as stereo, doubles sample count automatically */
|
||||
int baseclock; /* ym2612 settings */
|
||||
|
|
@ -39,4 +39,7 @@ typedef struct
|
|||
int loopc; /* debug: main loop counter */
|
||||
int mp3_errors; /* debug: mp3 decoder's error counter */
|
||||
int mp3_lasterr; /* debug: mp3 decoder's last error */
|
||||
int last_irq_pc; /* debug: PC value when IRQ happened */
|
||||
int lastjob; /* debug: last job id */
|
||||
int lastbusy; /* debug: */
|
||||
} _940_ctl_t;
|
||||
|
|
|
|||
|
|
@ -11,7 +11,7 @@ CROSS = arm-linux-
|
|||
|
||||
DEFINC = -I../.. -I. -D__GP2X__ -DARM # -DBENCHMARK
|
||||
COPT_COMMON = -static -s -O3 -ftracer -fstrength-reduce -Wall -funroll-loops -fomit-frame-pointer -fstrict-aliasing -ffast-math
|
||||
COPT = $(COPT_COMMON) -mtune=arm920t
|
||||
COPT = $(COPT_COMMON) -mtune=arm940t
|
||||
GCC = $(CROSS)gcc
|
||||
STRIP = $(CROSS)strip
|
||||
AS = $(CROSS)as
|
||||
|
|
@ -20,10 +20,6 @@ OBJCOPY = $(CROSS)objcopy
|
|||
|
||||
all: code940.bin
|
||||
|
||||
up940:
|
||||
@cp -v code940.bin /mnt/gp2x/mnt/sd/games/PicoDrive/
|
||||
|
||||
# @cmd //C copy code940.bin \\\\10.0.1.2\\gp2x\\mnt\\sd\\games\\PicoDrive\\
|
||||
|
||||
.c.o:
|
||||
@echo $<
|
||||
|
|
@ -36,7 +32,7 @@ up940:
|
|||
# stuff for 940 core
|
||||
|
||||
# init, emu_control, emu
|
||||
OBJS940 += 940init.o 940.o 940ym2612.o memcpy.o
|
||||
OBJS940 += 940init.o 940.o 940ym2612.o memcpy.o mix.o
|
||||
# the asm code seems to be faster when run on 920, but not on 940 for some reason
|
||||
# OBJS940 += ../../Pico/sound/ym2612_asm.o
|
||||
|
||||
|
|
@ -51,17 +47,21 @@ code940.bin : code940.gpe
|
|||
|
||||
code940.gpe : $(OBJS940) ../helix/helix_mp3.a
|
||||
@echo $@
|
||||
@$(LD) -static -e code940 -Ttext 0x0 $^ -L$(lgcc_path) -lgcc -o $@
|
||||
@$(LD) -static -e code940 -Ttext 0x0 $^ -L$(lgcc_path) -lgcc -o $@ -Map code940.map
|
||||
|
||||
940ym2612.o : ../../../Pico/sound/ym2612.c
|
||||
@echo $@
|
||||
@$(GCC) $(COPT_COMMON) -mtune=arm940t $(DEFINC) -DEXTERNAL_YM2612 -c $< -o $@
|
||||
@$(GCC) $(COPT) $(DEFINC) -DEXTERNAL_YM2612 -c $< -o $@
|
||||
|
||||
mix.o : ../../../Pico/sound/mix.s
|
||||
@echo $@
|
||||
@$(GCC) $(COPT) $(DEFINC) -DEXTERNAL_YM2612 -c $< -o $@
|
||||
|
||||
../helix/helix_mp3.a:
|
||||
@make -C ../helix/
|
||||
|
||||
|
||||
up:
|
||||
up: code940.bin
|
||||
@cp -v code940.bin /mnt/gp2x/mnt/sd/games/PicoDrive/
|
||||
|
||||
|
||||
|
|
@ -69,7 +69,7 @@ up:
|
|||
clean: tidy
|
||||
@$(RM) code940.bin
|
||||
tidy:
|
||||
@$(RM) code940.gpe $(OBJS940)
|
||||
@$(RM) code940.gpe $(OBJS940) code940.map
|
||||
|
||||
|
||||
OBJSMP3T = mp3test.o ../gp2x.o ../asmutils.o ../usbjoy.o
|
||||
|
|
|
|||
|
|
@ -276,6 +276,7 @@ int emu_ReloadRom(void)
|
|||
// bios_help() ?
|
||||
return 0;
|
||||
} else {
|
||||
if (PicoMCD & 1) PicoExitMCD();
|
||||
PicoMCD &= ~1;
|
||||
}
|
||||
|
||||
|
|
@ -374,7 +375,7 @@ int emu_ReloadRom(void)
|
|||
}
|
||||
}
|
||||
gettimeofday(¬iceMsgTime, 0);
|
||||
printf("PicoMCD: %x\n", PicoMCD);
|
||||
|
||||
// load SRAM for this ROM
|
||||
if(currentConfig.EmuOpt & 1)
|
||||
emu_SaveLoadGame(1, 1);
|
||||
|
|
@ -452,8 +453,8 @@ int emu_ReadConfig(int game)
|
|||
// set default config
|
||||
memset(¤tConfig, 0, sizeof(currentConfig));
|
||||
currentConfig.lastRomFile[0] = 0;
|
||||
currentConfig.EmuOpt = 0x1f | 0xc00; // | cd_leds | cd_cdda
|
||||
currentConfig.PicoOpt = 0x0f | 0x200; // | use_940
|
||||
currentConfig.EmuOpt = 0x1f | 0x400; // | cd_leds
|
||||
currentConfig.PicoOpt = 0x0f | 0xe00; // | use_940 | cd_pcm | cd_cdda
|
||||
currentConfig.PsndRate = 44100;
|
||||
currentConfig.PicoRegion = 0; // auto
|
||||
currentConfig.PicoAutoRgnOrder = 0x184; // US, EU, JP
|
||||
|
|
@ -599,20 +600,20 @@ static void cd_leds(void)
|
|||
// 8-bit modes
|
||||
unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
|
||||
unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
|
||||
*(unsigned int *)((char *)gp2x_screen + 320*2+306) =
|
||||
*(unsigned int *)((char *)gp2x_screen + 320*3+306) =
|
||||
*(unsigned int *)((char *)gp2x_screen + 320*4+306) = col_g;
|
||||
*(unsigned int *)((char *)gp2x_screen + 320*2+312) =
|
||||
*(unsigned int *)((char *)gp2x_screen + 320*3+312) =
|
||||
*(unsigned int *)((char *)gp2x_screen + 320*4+312) = col_r;
|
||||
*(unsigned int *)((char *)gp2x_screen + 320*2+ 4) =
|
||||
*(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =
|
||||
*(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;
|
||||
*(unsigned int *)((char *)gp2x_screen + 320*2+12) =
|
||||
*(unsigned int *)((char *)gp2x_screen + 320*3+12) =
|
||||
*(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;
|
||||
} else {
|
||||
// 16-bit modes
|
||||
unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+306);
|
||||
unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);
|
||||
unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
|
||||
unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
|
||||
*p++ = col_g; *p++ = col_g; p++; *p++ = col_r; *p++ = col_r; p += 320/2 - 10/2;
|
||||
*p++ = col_g; *p++ = col_g; p++; *p++ = col_r; *p++ = col_r; p += 320/2 - 10/2;
|
||||
*p++ = col_g; *p++ = col_g; p++; *p++ = col_r; *p++ = col_r; p += 320/2 - 10/2;
|
||||
*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
|
||||
*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
|
||||
*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 320/2 - 12/2;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -19,8 +19,8 @@ typedef struct {
|
|||
char lastRomFile[512];
|
||||
int EmuOpt; // LSb->MSb: use_sram, show_fps, enable_sound, gzip_saves,
|
||||
// squidgehack, save_cfg_on_exit, <unused>, 16_bit_mode
|
||||
// craigix_ram, confirm_save, show_cd_leds, enable_cdda
|
||||
// enable_pcm
|
||||
// craigix_ram, confirm_save, show_cd_leds
|
||||
//
|
||||
int PicoOpt; // used for config saving only, see Pico.h
|
||||
int PsndRate; // ditto
|
||||
int PicoRegion; // ditto
|
||||
|
|
|
|||
|
|
@ -574,7 +574,8 @@ static void draw_cd_menu_options(int menu_sel, char *b_us, char *b_eu, char *b_j
|
|||
gp2x_text_out8(tl_x, (y+=10), "EUR BIOS: %s", b_eu); // 1
|
||||
gp2x_text_out8(tl_x, (y+=10), "JAP BIOS: %s", b_jp); // 2
|
||||
gp2x_text_out8(tl_x, (y+=10), "CD LEDs %s", (currentConfig.EmuOpt &0x400)?"ON":"OFF"); // 3
|
||||
gp2x_text_out8(tl_x, (y+=10), "CDDA audio (using mp3s) %s", (currentConfig.EmuOpt &0x800)?"ON":"OFF"); // 4
|
||||
gp2x_text_out8(tl_x, (y+=10), "CDDA audio (using mp3s) %s", (currentConfig.PicoOpt&0x800)?"ON":"OFF"); // 4
|
||||
gp2x_text_out8(tl_x, (y+=10), "PCM audio %s", (currentConfig.PicoOpt&0x400)?"ON":"OFF"); // 5
|
||||
gp2x_text_out8(tl_x, (y+=10), "Done");
|
||||
|
||||
// draw cursor
|
||||
|
|
@ -590,7 +591,7 @@ static void draw_cd_menu_options(int menu_sel, char *b_us, char *b_eu, char *b_j
|
|||
|
||||
static void cd_menu_loop_options(void)
|
||||
{
|
||||
int menu_sel = 0, menu_sel_max = 5;
|
||||
int menu_sel = 0, menu_sel_max = 6;
|
||||
unsigned long inp = 0;
|
||||
char bios_us[32], bios_eu[32], bios_jp[32], *bios, *p;
|
||||
|
||||
|
|
@ -618,8 +619,9 @@ static void cd_menu_loop_options(void)
|
|||
if((inp& GP2X_B)||(inp&GP2X_LEFT)||(inp&GP2X_RIGHT)) { // toggleable options
|
||||
switch (menu_sel) {
|
||||
case 3: currentConfig.EmuOpt ^=0x400; break;
|
||||
case 4: currentConfig.EmuOpt ^=0x800; break;
|
||||
case 5: return;
|
||||
case 4: currentConfig.PicoOpt^=0x800; break;
|
||||
case 5: currentConfig.PicoOpt^=0x400; break;
|
||||
case 6: return;
|
||||
}
|
||||
}
|
||||
if(inp & (GP2X_X|GP2X_A)) return;
|
||||
|
|
|
|||
|
|
@ -20,8 +20,6 @@
|
|||
static YM2612 ym2612;
|
||||
|
||||
YM2612 *ym2612_940 = &ym2612;
|
||||
int mix_buffer_[44100/50*2]; /* this is where the YM2612 samples will be mixed to */
|
||||
int *mix_buffer = mix_buffer_;
|
||||
|
||||
// static _940_data_t shared_data_;
|
||||
static _940_ctl_t shared_ctl_;
|
||||
|
|
@ -96,58 +94,6 @@ void YM2612ResetChip_940(void)
|
|||
}
|
||||
|
||||
|
||||
static void mix_samples(short *dest_buf, int *ym_buf, short *mp3_buf, int len, int stereo)
|
||||
{
|
||||
if (mp3_buf)
|
||||
{
|
||||
if (stereo)
|
||||
{
|
||||
for (; len > 0; len--)
|
||||
{
|
||||
int l, r;
|
||||
l = r = *dest_buf;
|
||||
l += *ym_buf++; r += *ym_buf++;
|
||||
l += *mp3_buf++; r += *mp3_buf++;
|
||||
Limit( l, MAXOUT, MINOUT );
|
||||
Limit( r, MAXOUT, MINOUT );
|
||||
*dest_buf++ = l; *dest_buf++ = r;
|
||||
}
|
||||
} else {
|
||||
for (; len > 0; len--)
|
||||
{
|
||||
int l = *ym_buf++;
|
||||
l += *dest_buf;
|
||||
l += *mp3_buf++;
|
||||
Limit( l, MAXOUT, MINOUT );
|
||||
*dest_buf++ = l;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if (stereo)
|
||||
{
|
||||
for (; len > 0; len--)
|
||||
{
|
||||
int l, r;
|
||||
l = r = *dest_buf;
|
||||
l += *ym_buf++, r += *ym_buf++;
|
||||
Limit( l, MAXOUT, MINOUT );
|
||||
Limit( r, MAXOUT, MINOUT );
|
||||
*dest_buf++ = l; *dest_buf++ = r;
|
||||
}
|
||||
} else {
|
||||
for (; len > 0; len--)
|
||||
{
|
||||
int l = *ym_buf++;
|
||||
l += *dest_buf;
|
||||
Limit( l, MAXOUT, MINOUT );
|
||||
*dest_buf++ = l;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#if 0
|
||||
static void local_decode(void)
|
||||
{
|
||||
|
|
@ -190,7 +136,7 @@ static void local_decode(void)
|
|||
|
||||
static FILE *loaded_mp3 = 0;
|
||||
|
||||
void YM2612UpdateOne_940(short *buffer, int length, int stereo)
|
||||
int YM2612UpdateOne_940(int *buffer, int length, int stereo, int is_buf_empty)
|
||||
{
|
||||
#if 0
|
||||
int cdda_on, *ym_buffer = mix_buffer;
|
||||
|
|
@ -233,9 +179,7 @@ void YM2612UpdateOne_940(short *buffer, int length, int stereo)
|
|||
mp3_samples_ready += 1152;
|
||||
}
|
||||
#else
|
||||
YM2612UpdateOne_(buffer, length, stereo); // really writes to mix_buffer
|
||||
|
||||
mix_samples(buffer, mix_buffer, 0, length, stereo);
|
||||
return YM2612UpdateOne_(buffer, length, stereo, is_buf_empty);
|
||||
#endif
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -31,9 +31,9 @@ OBJS += ../../Pico/Area.o ../../Pico/Cart.o ../../Pico/Utils.o ../../Pico/Memory
|
|||
# Pico - CD
|
||||
OBJS += ../../Pico/cd/Pico.o ../../Pico/cd/Memory.o ../../Pico/cd/Sek.o ../../Pico/cd/LC89510.o \
|
||||
../../Pico/cd/cd_sys.o ../../Pico/cd/cd_file.o ../../Pico/cd/gfx_cd.o \
|
||||
../../Pico/cd/Area.o ../../Pico/cd/Misc.o
|
||||
../../Pico/cd/Area.o ../../Pico/cd/Misc.o ../../Pico/cd/pcm.o
|
||||
# Pico - sound
|
||||
OBJS += ../../Pico/sound/sound.o ../../Pico/sound/sn76496.o ../../Pico/sound/ym2612.o
|
||||
OBJS += ../../Pico/sound/sound.o ../../Pico/sound/sn76496.o ../../Pico/sound/ym2612.o ../../Pico/sound/mix.o
|
||||
# zlib
|
||||
OBJS += ../../zlib/gzio.o ../../zlib/inffast.o ../../zlib/inflate.o ../../zlib/inftrees.o ../../zlib/trees.o \
|
||||
../../zlib/deflate.o ../../zlib/crc32.o ../../zlib/adler32.o ../../zlib/zutil.o ../../zlib/compress.o
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue