--- np2/fdd/sxsi.c	2004/01/27 03:24:19	1.9
+++ np2/fdd/sxsi.c	2004/02/13 20:31:55	1.11
@@ -66,16 +66,18 @@ SXSIDEV sxsi_getptr(REG8 drv) {
 	UINT	num;
 
 	num = drv & 0x0f;
-	if (!(drv & 0x20)) {			// SASI or IDE
-		if (num < 2) {
+	if (!(drv & 0x20)) {					// SASI or IDE
+		if (num < SASIHDD_MAX) {
 			return(sxsi_dev + num);
 		}
 	}
+#if defined(SUPPORT_SCSI)
 	else {
-		if (num < 4) {				// SCSI
+		if (num < SCSIHDD_MAX) {			// SCSI
 			return(sxsi_dev + SASIHDD_MAX + num);
 		}
 	}
+#endif
 	return(NULL);
 }
 
@@ -128,18 +130,6 @@ const char	*ext;
 		size = 256;
 		totals = cylinders * sectors * surfaces;
 	}
-	else if ((!file_cmpname(ext, str_hdi)) && (!(drv & 0x20))) {
-		HDIHDR hdi;						// ANEX86 HDD (SASI) thanx Mamiya
-		if (file_read(fh, &hdi, sizeof(hdi)) != sizeof(hdi)) {
-			goto sxsiope_err2;
-		}
-		headersize = LOADINTELDWORD(hdi.headersize);
-		surfaces = LOADINTELDWORD(hdi.surfaces);
-		cylinders = LOADINTELDWORD(hdi.cylinders);
-		sectors = LOADINTELDWORD(hdi.sectors);
-		size = LOADINTELDWORD(hdi.sectorsize);
-		totals = cylinders * sectors * surfaces;
-	}
 	else if ((!file_cmpname(ext, str_nhd)) && (!(drv & 0x20))) {
 		NHDHDR nhd;						// T98Next HDD (IDE)
 		if ((file_read(fh, &nhd, sizeof(nhd)) != sizeof(nhd)) ||
@@ -153,13 +143,25 @@ const char	*ext;
 		size = LOADINTELWORD(nhd.sectorsize);
 		totals = cylinders * sectors * surfaces;
 	}
+	else if ((!file_cmpname(ext, str_hdi)) && (!(drv & 0x20))) {
+		HDIHDR hdi;						// ANEX86 HDD (SASI) thanx Mamiya
+		if (file_read(fh, &hdi, sizeof(hdi)) != sizeof(hdi)) {
+			goto sxsiope_err2;
+		}
+		headersize = LOADINTELDWORD(hdi.headersize);
+		surfaces = LOADINTELDWORD(hdi.surfaces);
+		cylinders = LOADINTELDWORD(hdi.cylinders);
+		sectors = LOADINTELDWORD(hdi.sectors);
+		size = LOADINTELDWORD(hdi.sectorsize);
+		totals = cylinders * sectors * surfaces;
+	}
 	else if ((!file_cmpname(ext, str_hdd)) && (drv & 0x20)) {
 		VHDHDR vhd;						// Virtual98 HDD (SCSI)
 		if ((file_read(fh, &vhd, sizeof(vhd)) != sizeof(vhd)) ||
 			(memcmp(vhd.sig, sig_vhd, 5))) {
 			goto sxsiope_err2;
 		}
-		headersize = 220;
+		headersize = sizeof(vhd);
 		surfaces = vhd.surfaces;
 		cylinders = LOADINTELWORD(vhd.cylinders);
 		sectors = vhd.sectors;
@@ -219,12 +221,14 @@ void sxsi_open(void) {
 			drv++;
 		}
 	}
+#if defined(SUPPORT_SCSI)
 	drv = 0x20;
 	for (i=0; i<4; i++) {
 		if (sxsi_hddopen(drv, np2cfg.scsihdd[i]) == SUCCESS) {
 			drv++;
 		}
 	}
+#endif
 }
 
 void sxsi_flash(void) {
@@ -262,16 +266,10 @@ void sxsi_trash(void) {
 
 static SXSIDEV getdrive(REG8 drv) {
 
-	UINT	num;
 	SXSIDEV	ret;
 
-	num = drv & 0x0f;
-	if (num >= 2) {
-		return(NULL);
-	}
-	num += (drv & 0x20) >> 4;
-	ret = sxsi_dev + num;
-	if (ret->fname[0] == '\0') {
+	ret = sxsi_getptr(drv);
+	if ((ret == NULL) || (ret->fname[0] == '\0')) {
 		return(NULL);
 	}
 	if ((FILEH)ret->fh == FILEH_INVALID) {