np2/cbus/pcm86io.c - diff

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Diff for /np2/cbus/pcm86io.c between versions 1.1 and 1.7

version 1.1, 2003/10/16 17:58:01	version 1.7, 2004/03/30 08:48:46
Line 1	Line 1
#include "compiler.h"	#include "compiler.h"
#include "dosio.h"	#include "cpucore.h"
#include "i286.h"
#include "pccore.h"	#include "pccore.h"
#include "iocore.h"	#include "iocore.h"
	#include "pcm86io.h"
#include "sound.h"	#include "sound.h"
#include "fmboard.h"	#include "fmboard.h"
#include "pcm86io.h"


extern PCM86CFG pcm86cfg;	extern PCM86CFG pcm86cfg;


static const BYTE pcm86bits[] = {1, 1, 1, 2, 0, 0, 0, 1};	static const UINT8 pcm86bits[] = {1, 1, 1, 2, 0, 0, 0, 1};
static const SINT32 pcm86rescue[] = {PCM86_RESCUE * 32, PCM86_RESCUE * 24,	static const SINT32 pcm86rescue[] = {PCM86_RESCUE * 32, PCM86_RESCUE * 24,
PCM86_RESCUE * 16, PCM86_RESCUE * 12,	PCM86_RESCUE * 16, PCM86_RESCUE * 12,
PCM86_RESCUE * 8, PCM86_RESCUE * 6,	PCM86_RESCUE * 8, PCM86_RESCUE * 6,
PCM86_RESCUE * 4, PCM86_RESCUE * 3};	PCM86_RESCUE * 4, PCM86_RESCUE * 3};


static void IOOUTCALL pcm86_oa460(UINT port, BYTE val) {	static void IOOUTCALL pcm86_oa460(UINT port, REG8 val) {

pcm86.extfunc = val;	pcm86.extfunc = val;
fmboard_extenable((BYTE)(val & 1));	fmboard_extenable((REG8)(val & 1));
(void)port;	(void)port;
}	}

static void IOOUTCALL pcm86_oa466(UINT port, BYTE val) {	static void IOOUTCALL pcm86_oa466(UINT port, REG8 val) {

if ((val & 0xe0) == 0xa0) {	if ((val & 0xe0) == 0xa0) {
sound_sync();	sound_sync();
Line 35 static void IOOUTCALL pcm86_oa466(UINT p	Line 34 static void IOOUTCALL pcm86_oa466(UINT p
(void)port;	(void)port;
}	}

static void IOOUTCALL pcm86_oa468(UINT port, BYTE val) {	static void IOOUTCALL pcm86_oa468(UINT port, REG8 val) {

BYTE xchgbit;	REG8 xchgbit;

sound_sync();	sound_sync();
xchgbit = pcm86.fifo ^ val;	xchgbit = pcm86.fifo ^ val;
Line 47 static void IOOUTCALL pcm86_oa468(UINT p	Line 46 static void IOOUTCALL pcm86_oa468(UINT p
pcm86.wrtpos = 0;	pcm86.wrtpos = 0;
pcm86.realbuf = 0;	pcm86.realbuf = 0;
pcm86.virbuf = 0;	pcm86.virbuf = 0;
	pcm86.lastclock = CPU_CLOCK + CPU_BASECLOCK - CPU_REMCLOCK;
	pcm86.lastclock <<= 6;
	}
	if ((xchgbit & 0x10) && (!(val & 0x10))) {
pcm86.write = 0;	pcm86.write = 0;
pcm86.reqirq = 0;	pcm86.reqirq = 0;
pcm86.lastclock = nevent.clock + nevent.baseclock -
nevent.remainclock;
pcm86.lastclock <<= 6;
}	}
// サンプリングレート変更	// サンプリングレート変更
if (xchgbit & 7) {	if (xchgbit & 7) {
Line 60 static void IOOUTCALL pcm86_oa468(UINT p	Line 60 static void IOOUTCALL pcm86_oa468(UINT p
}	}
pcm86.fifo = val & (~0x10);	pcm86.fifo = val & (~0x10);
if ((xchgbit & 0x80) && (val & 0x80)) {	if ((xchgbit & 0x80) && (val & 0x80)) {
pcm86.lastclock = nevent.clock + nevent.baseclock -	pcm86.lastclock = CPU_CLOCK + CPU_BASECLOCK - CPU_REMCLOCK;
nevent.remainclock;
pcm86.lastclock <<= 6;	pcm86.lastclock <<= 6;
}	}
pcm86.write = 1;
pcm86_setnextintr();	pcm86_setnextintr();
(void)port;	(void)port;
}	}

static void IOOUTCALL pcm86_oa46a(UINT port, BYTE val) {	static void IOOUTCALL pcm86_oa46a(UINT port, REG8 val) {

sound_sync();	sound_sync();
if (pcm86.fifo & 0x20) {	if (pcm86.fifo & 0x20) {
Line 97 static void IOOUTCALL pcm86_oa46a(UINT p	Line 95 static void IOOUTCALL pcm86_oa46a(UINT p
(void)port;	(void)port;
}	}

static void IOOUTCALL pcm86_oa46c(UINT port, BYTE val) {	static void IOOUTCALL pcm86_oa46c(UINT port, REG8 val) {

if (pcm86.virbuf < PCM86_LOGICALBUF) {	if (pcm86.virbuf < PCM86_LOGICALBUF) {
pcm86.virbuf++;	pcm86.virbuf++;
Line 115 static void IOOUTCALL pcm86_oa46c(UINT p	Line 113 static void IOOUTCALL pcm86_oa46c(UINT p
(void)port;	(void)port;
}	}

static BYTE IOINPCALL pcm86_ia460(UINT port) {	static REG8 IOINPCALL pcm86_ia460(UINT port) {

(void)port;	(void)port;
return(0x40 \| (pcm86.extfunc & 1));	return(0x40 \| (pcm86.extfunc & 1));
}	}

static BYTE IOINPCALL pcm86_ia466(UINT port) {	static REG8 IOINPCALL pcm86_ia466(UINT port) {

UINT32 nowclk;
UINT32 past;	UINT32 past;
BYTE ret;	UINT32 cnt;
	UINT32 stepclock;
sound_sync();	REG8 ret;
nowclk = nevent.clock + nevent.baseclock - nevent.remainclock;
nowclk <<= 6;	past = CPU_CLOCK + CPU_BASECLOCK - CPU_REMCLOCK;
past = nowclk - pcm86.lastclock;	past <<= 6;
if (past >= pcm86.stepclock) {	past -= pcm86.lastclock;
RECALC_NOWCLKWAIT;	stepclock = pcm86.stepclock;
past = nowclk - pcm86.lastclock;	if (past >= stepclock) {
	cnt = past / stepclock;
	pcm86.lastclock += (cnt * stepclock);
	past -= cnt * stepclock;
	if (pcm86.fifo & 0x80) {
	sound_sync();
	RECALC_NOWCLKWAIT(cnt);
	}
}	}
ret = ((past << 1) >= pcm86.stepclock)?1:0;	ret = ((past << 1) >= stepclock)?1:0;
if (pcm86.virbuf >= PCM86_LOGICALBUF) { // バッファフル	if (pcm86.virbuf >= PCM86_LOGICALBUF) { // バッファフル
ret \|= 0x80;	ret \|= 0x80;
}	}
Line 146 static BYTE IOINPCALL pcm86_ia466(UINT p	Line 150 static BYTE IOINPCALL pcm86_ia466(UINT p
return(ret);	return(ret);
}	}

static BYTE IOINPCALL pcm86_ia468(UINT port) {	static REG8 IOINPCALL pcm86_ia468(UINT port) {

BYTE ret;	REG8 ret;

ret = pcm86.fifo & (~0x10);	ret = pcm86.fifo & (~0x10);
	#if 1
	if (pcm86gen_intrq()) {
	ret \|= 0x10;
	}
	#elif 1 // むしろこう？
	if (pcm86.fifo & 0x20) {
	sound_sync();
	if (pcm86.virbuf <= pcm86.fifosize) {
	if (pcm86.write) {
	pcm86.write = 0;
	}
	else {
	ret \|= 0x10;
	}
	}
	}
	#else
if ((pcm86.write) && (pcm86.fifo & 0x20)) {	if ((pcm86.write) && (pcm86.fifo & 0x20)) {
// pcm86.write = 0;	// pcm86.write = 0;
sound_sync();	sound_sync();
Line 159 static BYTE IOINPCALL pcm86_ia468(UINT p	Line 180 static BYTE IOINPCALL pcm86_ia468(UINT p
ret \|= 0x10;	ret \|= 0x10;
}	}
}	}
	#endif
(void)port;	(void)port;
return(ret);	return(ret);
}	}

static BYTE IOINPCALL pcm86_ia46a(UINT port) {	static REG8 IOINPCALL pcm86_ia46a(UINT port) {

(void)port;	(void)port;
return(pcm86.dactrl);	return(pcm86.dactrl);
}	}

static BYTE IOINPCALL pcm86_inpdummy(UINT port) {	static REG8 IOINPCALL pcm86_inpdummy(UINT port) {

(void)port;	(void)port;
return(0);	return(0);

RetroPC.NET-CVS <cvs@retropc.net>

Removed from v.1.1
changed lines
	Added in v.1.7