np2/bios/bios1b.c - diff

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Diff for /np2/bios/bios1b.c between versions 1.1.1.1 and 1.5

version 1.1.1.1, 2003/10/16 17:58:22	version 1.5, 2003/11/29 00:36:00
Line 1	Line 1
#include "compiler.h"	#include "compiler.h"
#include "dosio.h"
#include "i286.h"	#include "i286.h"
#include "memory.h"	#include "memory.h"
#include "pccore.h"	#include "pccore.h"
Line 44 static void biosfd_setchrn(void) {	Line 43 static void biosfd_setchrn(void) {
fdc.N = I286_CH;	fdc.N = I286_CH;
}	}

	#if 0
static void biosfd_resultout(UINT32 result) {	static void biosfd_resultout(UINT32 result) {

BYTE *ptr;	BYTE *ptr;
Line 58 static void biosfd_resultout(UINT32 resu	Line 58 static void biosfd_resultout(UINT32 resu
ptr[6] = fdc.N;	ptr[6] = fdc.N;
ptr[7] = fdc.ncn;	ptr[7] = fdc.ncn;
}	}
	#endif

static BOOL biosfd_seek(BYTE track, BOOL ndensity) {	static BOOL biosfd_seek(BYTE track, BOOL ndensity) {

Line 79 static BOOL biosfd_seek(BYTE track, BOOL	Line 80 static BOOL biosfd_seek(BYTE track, BOOL

static UINT16 fdfmt_biospara(BYTE fmt, BYTE rpm) { // ver0.31	static UINT16 fdfmt_biospara(BYTE fmt, BYTE rpm) { // ver0.31

UINT16 seg;	UINT seg;
UINT16 off;	UINT off;
UINT16 n;	UINT16 n;

n = fdc.N;	n = fdc.N;
Line 107 static UINT16 fdfmt_biospara(BYTE fmt, B	Line 108 static UINT16 fdfmt_biospara(BYTE fmt, B
if (fmt) {	if (fmt) {
off += 2;	off += 2;
}	}
return(i286_memword_read(seg, off));	return(i286_memword_read(seg, LOW16(off)));
}	}

static void change_rpm(BYTE rpm) { // ver0.31	static void change_rpm(BYTE rpm) { // ver0.31
Line 207 static void b0patch(void) {	Line 208 static void b0patch(void) {
UINT32 addr;	UINT32 addr;
UINT size;	UINT size;
UINT cnt;	UINT cnt;
BYTE c;	REG8 c;
BYTE cl;	REG8 cl;
BYTE last;	REG8 last;
addr = ES_BASE + I286_BP;	addr = ES_BASE + I286_BP;
size = I286_BX;	size = I286_BX;
cnt = 0;	cnt = 0;
Line 218 static void b0patch(void) {	Line 219 static void b0patch(void) {
c = i286_memoryread(addr++);	c = i286_memoryread(addr++);
cl = 0;	cl = 0;
do {	do {
BYTE now = c & 0x80;	REG8 now = c & 0x80;
c <<= 1;	c <<= 1;
b0p.pos++;	b0p.pos++;
if (now == last) {	if (now == last) {
Line 240 static void b0patch(void) {	Line 241 static void b0patch(void) {
}	}
if ((b0p.pos >> 3) < I286_BX) {	if ((b0p.pos >> 3) < I286_BX) {
UINT32 addr;	UINT32 addr;
BYTE c;	REG8 c;
addr = ES_BASE + I286_BP + (b0p.pos >> 3);	addr = ES_BASE + I286_BP + (b0p.pos >> 3);
c = i286_memoryread(addr);	c = i286_memoryread(addr);
c ^= (1 << (b0p.pos & 7));	c ^= (1 << (b0p.pos & 7));
Line 993 UINT16 bootstrapload(void) { //	Line 994 UINT16 bootstrapload(void) { //
void bios0x1b(void) {	void bios0x1b(void) {

BYTE ret_ah;	BYTE ret_ah;
BYTE flag;	REG8 flag;

switch(I286_AL & 0xf0) {	switch(I286_AL & 0xf0) {
case 0x90:	case 0x90:
Line 1043 void bios0x1b(void) {	Line 1044 void bios0x1b(void) {
}	}
}	}
#endif	#endif
#if 0 // def TRACE	#if 0
{	TRACEOUT(("%04x:%04x AX=%04x BX=%04x %02x:%02x:%02x:%02x\n" \
char buf[256];
wsprintf(buf, "%04x:%04x AX=%04x BX=%04x %02x:%02x:%02x:%02x\n" \
"ES=%04x BP=%04x \nret=%02x",	"ES=%04x BP=%04x \nret=%02x",
i286_memword_read(I286_SS, I286_SP+2),	i286_memword_read(I286_SS, I286_SP+2),
i286_memword_read(I286_SS, I286_SP),	i286_memword_read(I286_SS, I286_SP),
I286_AX, I286_BX, I286_CL, I286_DH, I286_DL, I286_CH,	I286_AX, I286_BX, I286_CL, I286_DH, I286_DL, I286_CH,
I286_ES, I286_BP, ret_ah);	I286_ES, I286_BP, ret_ah));
TRACE_(buf, 0);
}
#endif	#endif
I286_AH = ret_ah;	I286_AH = ret_ah;
flag = i286_membyte_read(I286_SS, I286_SP+4) & 0xfe;	flag = i286_membyte_read(I286_SS, I286_SP+4) & 0xfe;
if (ret_ah >= 0x20) {	if (ret_ah >= 0x20) {
flag \|= 1;	flag += 1;
}	}
i286_membyte_write(I286_SS, I286_SP+4, flag);	i286_membyte_write(I286_SS, I286_SP+4, flag);
}	}

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

Removed from v.1.1.1.1
changed lines
	Added in v.1.5