Changeset 445 in xtideuniversalbios for trunk/BIOS_Drive_Information_Tool


Ignore:
Timestamp:
Aug 29, 2012, 12:59:23 PM (12 years ago)
Author:
krille_n_@…
google:author:
krille_n_@hotmail.com
Message:

Changes:

  • A speed optimization to the eSHL_IM macro for 386 and higher. This change breaks emulation in the sense that the macro will fail when given a memory operand as the first parameter.
  • Memory_SumCXbytesFromESSItoAL now returns with the zero flag set/cleared according to the result.
  • Unrolled all the 8 bit READ transfer loops to do 16 bytes per iteration. Added a new macro (UNROLL_SECTORS_IN_CX_TO_OWORDS) as part of it. Size wise this is expensive but I think it should be worth the ROM space. The WRITE transfer loops were left as is since writes are rare anyway (<10% of all disk I/O IIRC).
  • Minor optimizations and fixes here and there.
File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/BIOS_Drive_Information_Tool/Src/AtaInfo.asm

    r426 r445  
    33
    44;
    5 ; XTIDE Universal BIOS and Associated Tools 
     5; XTIDE Universal BIOS and Associated Tools
    66; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 by XTIDE Universal BIOS Team.
    77;
     
    1010; the Free Software Foundation; either version 2 of the License, or
    1111; (at your option) any later version.
    12 ; 
     12;
    1313; This program is distributed in the hope that it will be useful,
    1414; but WITHOUT ANY WARRANTY; without even the implied warranty of
    1515; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    16 ; GNU General Public License for more details.     
     16; GNU General Public License for more details.
    1717; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
    1818;
     
    175175;--------------------------------------------------------------------
    176176DisplayBlockModeInformationUsingAtaInfoFromDSBX:
    177     eMOVZX  ax, BYTE [bx+ATA1.bBlockSel]    ; ATA2+ has flag on high word
    178     eMOVZX  dx, BYTE [bx+ATA1.bBlckSize]
     177    eMOVZX  ax, [bx+ATA1.bBlockSel] ; ATA2+ has flag on high word
     178    cwd
     179    mov     dl, [bx+ATA1.bBlckSize]
    179180    mov     si, g_szBlockMode
    180181    jmp     Print_FormatStringFromSIwithParametersInAXDX
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