From 171e4791a80462627c5876e095a042dc3e3b9eac Mon Sep 17 00:00:00 2001
From: Tolik <85737314+Tolik-Trek@users.noreply.github.com>
Date: Thu, 23 Jan 2025 21:14:27 +1000
Subject: [PATCH] ...

---
 constants/SP2000.inc | 41 ++++++++++++++++++++++-------------------
 1 file changed, 22 insertions(+), 19 deletions(-)

diff --git a/constants/SP2000.inc b/constants/SP2000.inc
index 21a7efc..f9db583 100644
--- a/constants/SP2000.inc
+++ b/constants/SP2000.inc
@@ -1714,28 +1714,31 @@ Config_PG:
 ; 8 - размер сектора
 ;10 - Removable Media Parameters
 	STRUCT  HDD_INIT_TABLE
-.DRV_Flags		BYTE	; 0	DRVHD_H
-.SectorsPerTrack	BYTE	; 1	SC_PT_H
-.HeadsNumber		BYTE	; 2	HEADS_H
-.CylinderNumberLow	BYTE	; 3	CYL_L_H
-.CylinderNumberHigh	BYTE	; 4	CYL_H_H
-.SectorsPerCylinderLow	BYTE	; 5	SPCLL_H
-.SectorsPerCylinderHigh	BYTE	; 6	SPCLH_H
-.DriveType		BYTE	; 7	DTYPE_H	
-.SectorSize		WORD	; 8
-.RemovableMedia		BYTE	; 10	; bit0=1 removable, bit1=1 drive changed, bit7..2 reserved
-.RESERVED_1		BYTE	; 11
-.RESERVED_2		BYTE	; 12
-.RESERVED_3		BYTE	; 13
-.RESERVED_4		BYTE	; 14
-.RESERVED_5		BYTE	; 15
+.DRV_Flags			BYTE	; 0	DRVHD_H
+.SectorsPerTrack		BYTE	; 1	SC_PT_H
+.HeadsNumber			BYTE	; 2	HEADS_H
+.CylinderNumberLow		BYTE	; 3	CYL_L_H			; for ATAPI MediaSizeLow (word)
+.CylinderNumberHigh		BYTE	; 4	CYL_H_H
+.SectorsPerCylinderLow		BYTE	; 5	SPCLL_H			; for ATAPI MediaSizeHigh (word)
+.SectorsPerCylinderHigh		BYTE	; 6	SPCLH_H
+.DriveType			BYTE	; 7	DTYPE_H	
+.SectorSize			WORD	; 8
+.RemovableMedia			BYTE	; 10	; bit0=1 removable, bit1=1 drive changed, bit7..2 reserved
+.RESERVED_1			BYTE	; 11
+.RESERVED_2			BYTE	; 12
+.RESERVED_3			BYTE	; 13
+.RESERVED_4			BYTE	; 14
+.RESERVED_5			BYTE	; 15
 	ENDS
+HDD_INIT_TABLE.MediaSizeLow	EQU HDD_INIT_TABLE.CylinderNumberLow	; For ATAPI
+HDD_INIT_TABLE.MediaSizeHigh	EQU HDD_INIT_TABLE.SectorsPerCylinderLow; For ATAPI
 ;
 
-INIT_TBL_IDE0		HDD_INIT_TABLE = SYS_PAGE.IDE_0			; !HARDCODE table in SYS_PAGE
-INIT_TBL_IDE1		HDD_INIT_TABLE = SYS_PAGE.IDE_1			; !HARDCODE table in SYS_PAGE
-INIT_TBL_IDE2		HDD_INIT_TABLE = SYS_PAGE.IDE_2			; !HARDCODE table in SYS_PAGE
-INIT_TBL_IDE3		HDD_INIT_TABLE = SYS_PAGE.IDE_3			; !HARDCODE table in SYS_PAGE
+INIT_TBL_IDE0			HDD_INIT_TABLE = SYS_PAGE.IDE_0		; !HARDCODE table in SYS_PAGE
+INIT_TBL_IDE1			HDD_INIT_TABLE = SYS_PAGE.IDE_1		; !HARDCODE table in SYS_PAGE
+INIT_TBL_IDE2			HDD_INIT_TABLE = SYS_PAGE.IDE_2		; !HARDCODE table in SYS_PAGE
+INIT_TBL_IDE3			HDD_INIT_TABLE = SYS_PAGE.IDE_3		; !HARDCODE table in SYS_PAGE
+;
 
 ; Регистр адреса накопителя (#3F7 чтение) содержит номер головки и HDD, выбранные в предыдущей операции.
 ; Биты 0, 1 - /DSO, /DS1 - биты выбора соответствующего накопителя 0 или 1.