np2/bios/bios19.c - diff

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Diff for /np2/bios/bios19.c between versions 1.5 and 1.8

version 1.5, 2004/03/04 17:36:05	version 1.8, 2005/05/20 13:59:46
Line 19 static const UINT rs_speed[] = {	Line 19 static const UINT rs_speed[] = {

void bios0x19(void) {	void bios0x19(void) {

BYTE speed;	UINT8 speed;
BYTE mode;	UINT8 mode;
RSBIOS rsb;	RSBIOS rsb;
UINT16 doff;	UINT16 doff;
UINT16 cnt;	UINT16 cnt;
UINT16 dseg;	UINT16 dseg;
BYTE flag;	UINT8 flag;

if (CPU_AH < 2) {	if (CPU_AH < 2) {
// 通信速度…	// 通信速度…
Line 58 void bios0x19(void) {	Line 58 void bios0x19(void) {
iocore_out8(0x32, CPU_CL); // cmd	iocore_out8(0x32, CPU_CL); // cmd
#endif	#endif
iocore_out8(0x77, 0xb6);	iocore_out8(0x77, 0xb6);
iocore_out8(0x75, (BYTE)rs_speed[speed]);	iocore_out8(0x75, (UINT8)rs_speed[speed]);
iocore_out8(0x75, (BYTE)(rs_speed[speed] >> 8));	iocore_out8(0x75, (UINT8)(rs_speed[speed] >> 8));

ZeroMemory(&rsb, sizeof(rsb));	ZeroMemory(&rsb, sizeof(rsb));
rsb.FLAG = (CPU_AH << 4);	rsb.FLAG = (CPU_AH << 4);
Line 95 void bios0x19(void) {	Line 95 void bios0x19(void) {
// ポインタ～	// ポインタ～
SETBIOSMEM16(MEMW_RS_CH0_OFST, CPU_DI);	SETBIOSMEM16(MEMW_RS_CH0_OFST, CPU_DI);
SETBIOSMEM16(MEMW_RS_CH0_SEG, CPU_ES);	SETBIOSMEM16(MEMW_RS_CH0_SEG, CPU_ES);
MEML_WRITESTR(CPU_ES, CPU_DI, &rsb, sizeof(rsb));	MEMR_WRITES(CPU_ES, CPU_DI, &rsb, sizeof(rsb));

CPU_AH = 0;	CPU_AH = 0;
}	}
Line 106 void bios0x19(void) {	Line 106 void bios0x19(void) {
CPU_AH = 1;	CPU_AH = 1;
return;	return;
}	}
flag = i286_membyte_read(dseg, doff + R_FLAG);	flag = MEMR_READ8(dseg, doff + R_FLAG);
if (!(flag & RFLAG_INIT)) {	if (!(flag & RFLAG_INIT)) {
CPU_AH = 1;	CPU_AH = 1;
return;	return;
}	}
switch(CPU_AH) {	switch(CPU_AH) {
case 0x02:	case 0x02:
CPU_CX = i286_memword_read(dseg, doff + R_CNT);	CPU_CX = MEMR_READ16(dseg, doff + R_CNT);
break;	break;

case 0x03:	case 0x03:
Line 121 void bios0x19(void) {	Line 121 void bios0x19(void) {
break;	break;

case 0x04:	case 0x04:
cnt = i286_memword_read(dseg, doff + R_CNT);	cnt = MEMR_READ16(dseg, doff + R_CNT);
if (cnt) {	if (cnt) {
UINT16 pos;	UINT16 pos;

// データ引き取り	// データ引き取り
pos = i286_memword_read(dseg, doff + R_GETP);	pos = MEMR_READ16(dseg, doff + R_GETP);
CPU_CX = i286_memword_read(dseg, pos);	CPU_CX = MEMR_READ16(dseg, pos);

// 次のポインタをストア	// 次のポインタをストア
pos += 2;	pos += 2;
if (pos >= i286_memword_read(dseg, doff + R_TAILP)) {	if (pos >= MEMR_READ16(dseg, doff + R_TAILP)) {
pos = i286_memword_read(dseg, doff + R_HEADP);	pos = MEMR_READ16(dseg, doff + R_HEADP);
}	}
i286_memword_write(dseg, doff + R_GETP, pos);	MEMR_WRITE16(dseg, doff + R_GETP, pos);

// カウンタをデクリメント	// カウンタをデクリメント
cnt--;	cnt--;
i286_memword_write(dseg, doff + R_CNT, cnt);	MEMR_WRITE16(dseg, doff + R_CNT, cnt);

// XONを送信？	// XONを送信？
if ((flag & RFLAG_XOFF) &&	if ((flag & RFLAG_XOFF) &&
(cnt < i286_memword_read(dseg, doff + R_XOFF))) {	(cnt < MEMR_READ16(dseg, doff + R_XOFF))) {
iocore_out8(0x30, RSCODE_XON);	iocore_out8(0x30, RSCODE_XON);
flag &= ~RFLAG_XOFF;	flag &= ~RFLAG_XOFF;
}	}
flag &= ~RFLAG_BOVF;	flag &= ~RFLAG_BOVF;
CPU_AH = 0;	CPU_AH = 0;
i286_membyte_write(dseg, doff + R_FLAG, flag);	MEMR_WRITE8(dseg, doff + R_FLAG, flag);
return;	return;
}	}
else {	else {
Line 160 void bios0x19(void) {	Line 160 void bios0x19(void) {
iocore_out8(0x32, CPU_AL);	iocore_out8(0x32, CPU_AL);
if (CPU_AL & RCMD_IR) {	if (CPU_AL & RCMD_IR) {
flag &= ~RFLAG_INIT;	flag &= ~RFLAG_INIT;
i286_membyte_write(dseg, doff + R_FLAG, flag);	MEMR_WRITE8(dseg, doff + R_FLAG, flag);
sysport.c &= ~1;	sysport.c &= ~1;
pic.pi[0].imr \|= PIC_RS232C;	pic.pi[0].imr \|= PIC_RS232C;
}	}
Line 172 void bios0x19(void) {	Line 172 void bios0x19(void) {
sysport.c \|= 1;	sysport.c \|= 1;
pic.pi[0].imr &= ~PIC_RS232C;	pic.pi[0].imr &= ~PIC_RS232C;
}	}
i286_membyte_write(dseg, doff + R_CMD, CPU_AL);	MEMR_WRITE8(dseg, doff + R_CMD, CPU_AL);
break;	break;

case 0x06:	case 0x06:
CPU_CH = iocore_inp8(0x32);	CPU_CH = iocore_inp8(0x32);
CPU_CL = iocore_inp8(0x33);	CPU_CL = iocore_inp8(0x33);
Line 181 void bios0x19(void) {	Line 182 void bios0x19(void) {
}	}
CPU_AH = 0;	CPU_AH = 0;
if (flag & RFLAG_BOVF) {	if (flag & RFLAG_BOVF) {
i286_membyte_write(dseg, doff + R_FLAG,	MEMR_WRITE8(dseg, doff + R_FLAG, (UINT8)(flag & (~RFLAG_BOVF)));
(BYTE)(flag & (~RFLAG_BOVF)));
CPU_AH = 2;	CPU_AH = 2;
}	}
}	}

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