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/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AHDh_HReset.asm

    r429 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
    1616; GNU General Public License for more details.
    17 ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html               
    18 ;               
     17; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
     18;
    1919
    2020; Section containing code
     
    106106    push    cx
    107107    push    ax
    108     call    AHDh_WaitUnilDriveMotorHasReachedFullSpeed
     108    call    AHDh_WaitUntilDriveMotorHasReachedFullSpeed
    109109    call    AH9h_InitializeDriveForUse          ; Initialize Master or Slave (Master will come first in DPT list)
    110110
     
    133133
    134134;--------------------------------------------------------------------
    135 ; AHDh_WaitUnilDriveMotorHasReachedFullSpeed
     135; AHDh_WaitUntilDriveMotorHasReachedFullSpeed
    136136;   Parameters:
    137137;       DS:DI:  Ptr to DPT
     
    142142;       AL, BX, CX, DX
    143143;--------------------------------------------------------------------
    144 AHDh_WaitUnilDriveMotorHasReachedFullSpeed:
     144AHDh_WaitUntilDriveMotorHasReachedFullSpeed:
    145145%ifdef MODULE_SERIAL
    146146    test    BYTE [di+DPT.bFlagsHigh], FLGH_DPT_SERIAL_DEVICE
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