source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Inc/IdeIO.inc@ 603

Last change on this file since 603 was 592, checked in by Krister Nordvall, 6 years ago

Changes:

  • The problem with NASM in the previous revision (r591) has been fixed.
  • The colors used by the boot menu and hotkey bar can now be customized by selecting one of a number of pre-defined color themes. Suggestions for additional themes are more than welcome!
  • Large builds are now 10 KB. Small builds are still 8 KB with the exception of the Tiny build which is now 4 KB. In other words, builds are now as small as possible to make it easier to combine them with other BIOSes.
  • Added code to the library to improve drive error handling. XTIDECFG can now handle "Drive Not Ready" errors.
  • Fixed a couple of potential bugs in AtaID.asm (AtaID_GetMaxPioModeToAXandMinCycleTimeToCX); 1) ATA1.bPioMode was treated as a WORD variable. 2) ATA2.bPIOSupp was assumed to be non-zero which would result in PIO mode 3 being returned if the assumption was wrong.
  • Made the same changes in the equivalent function used by BIOSDRVS (DisplayPioModeInformationUsingAtaInfoFromDSBX in AtaInfo.asm).
  • Fixed a bug from r587 in PDC20x30.asm in PDC20x30_GetMaxPioModeToALandMinPioCycleTimeToBX.
  • Fixed a bug from r523 in XTIDECFG where Auto Configure would only set the IRQ on one IDE interface on AT-builds.
  • XTIDECFG will now restore the default settings for the "Serial port virtual device" when reselecting it in the list of device types. This makes it behave consistently for all device types.
  • The eAAM macro is now used regardless if USE_UNDOC_INTEL is defined or not because it is apparently supported on all processors including the NEC V20/V30 CPUs.
  • Renamed the EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS define to EXCLUDE_FROM_XUB.
  • Added a define to exclude unused library code from BIOSDRVS (EXCLUDE_FROM_BIOSDRVS). This makes it a lot smaller than in previous revisions.
  • All unnecessary CLD-instructions are now under a new define 'CLD_NEEDED' which is only enabled for the BIOS. It is disabled for XTIDECFG and BIOSDRVS but can be enabled if needed by adding this define to the respective makefile. This change was made because these unnecessary instructions are wasteful and should never be needed. In fact, they only serve to hide bugs (in other peoples code) which I strongly believe should be avoided. I recommend people making their own BIOSes from source to not use this define as it's extremely unlikely to be needed.
  • Updated the copyright info in SerDrive and changed an URL to point to the new site.
  • Updated the copyright info and version number in BIOSDRVS.
  • Updated the copyright info in XTIDECFG.
  • Optimizations in general.
File size: 3.6 KB
RevLine 
[400]1; Project name : XTIDE Universal BIOS
2; Description : Macros for normal I/O mapped ATA controllers.
3
4;
[526]5; XTIDE Universal BIOS and Associated Tools
6; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
[400]7;
8; This program is free software; you can redistribute it and/or modify
9; it under the terms of the GNU General Public License as published by
10; the Free Software Foundation; either version 2 of the License, or
11; (at your option) any later version.
[526]12;
[400]13; This program is distributed in the hope that it will be useful,
14; but WITHOUT ANY WARRANTY; without even the implied warranty of
15; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
[526]16; GNU General Public License for more details.
[400]17; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
18;
19
20%ifndef IDE_IO_INC
21%define IDE_IO_INC
22
23;--------------------------------------------------------------------
[473]24; OUTPUT_AL_TO_IDE_REGISTER
25; OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER
[400]26; Parameters:
27; AL: Byte to output
28; %1: IDE Register (OUTPUT_AL_TO_IDE_REGISTER)
29; IDE Control Block Register (OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER)
30; DS:DI: Ptr to DPT (in RAMVARS segment)
31; Returns:
32; Nothing
33; Corrupts registers:
34; BX, DX
35;--------------------------------------------------------------------
36%macro OUTPUT_AL_TO_IDE_REGISTER 1
[473]37%ifndef MODULE_8BIT_IDE ; Standard IDE controllers only
38
39 %ifnidni %1, dx
40 mov dx, %1
41 %endif
42 add dx, [di+DPT.wBasePort]
43 out dx, al
44
45%else ; Register translations required
46
47 %ifnidni %1, dl
48 mov dl, %1
49 %endif
[400]50 call IdeIO_OutputALtoIdeRegisterInDL
51
52%endif
53%endmacro
54
[473]55
[400]56%macro OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER 1
[473]57%ifndef MODULE_8BIT_IDE ; Standard IDE controllers only
58
[592]59 eMOVZX bx, [di+DPT.bIdevarsOffset]
[473]60 %ifnidni %1, dx
61 mov dx, %1
62 %endif
63 add dx, [cs:bx+IDEVARS.wControlBlockPort]
64 out dx, al
65
66%else ; Register translations required
67
68 %ifnidni %1, dl
69 mov dl, %1
70 %endif
71 call IdeIO_OutputALtoIdeControlBlockRegisterInDL
72
[400]73%endif
74%endmacro
75
76
77;--------------------------------------------------------------------
78; INPUT_TO_AL_FROM_IDE_REGISTER
79; Parameters:
80; %1: IDE Register
81; DS:DI: Ptr to DPT (in RAMVARS segment)
82; Returns:
83; AL: Inputted byte
84; Corrupts registers:
85; BX, DX
86;--------------------------------------------------------------------
87%macro INPUT_TO_AL_FROM_IDE_REGISTER 1
[473]88%ifndef MODULE_8BIT_IDE ; Standard IDE controllers only
89
90 %ifnidni %1, dx
91 mov dx, %1
92 %endif
93 add dx, [di+DPT.wBasePort]
94 in al, dx
95
96%else ; Register translations required
97
98 %ifnidni %1, dl
99 mov dl, %1
100 %endif
101 call IdeIO_InputToALfromIdeRegisterInDL
102
[400]103%endif
104%endmacro
105
106
[589]107;--------------------------------------------------------------------
108; UNROLL_SECTORS_IN_CX_TO_DWORDS
109; UNROLL_SECTORS_IN_CX_TO_QWORDS
110; UNROLL_SECTORS_IN_CX_TO_OWORDS
111; Parameters:
112; CX: Number of sectors in block
113; Returns:
114; CX: Number of DWORDs, QWORDs or OWORDs in block
115; Corrupts registers:
116; Nothing
117;--------------------------------------------------------------------
118%macro UNROLL_SECTORS_IN_CX_TO_DWORDS 0
119%ifdef USE_186
120 shl cx, 7
121%else
122 xchg cl, ch ; Sectors to WORDs (SHL CX, 8)
123 shr cx, 1
124%endif
125%endmacro
126
127%macro UNROLL_SECTORS_IN_CX_TO_QWORDS 0
128%ifdef USE_186
129 shl cx, 6
130%else
131 UNROLL_SECTORS_IN_CX_TO_DWORDS
132 shr cx, 1
133%endif
134%endmacro
135
136%macro UNROLL_SECTORS_IN_CX_TO_OWORDS 0
137%ifdef USE_186
138 shl cx, 5
139%else
140; UNROLL_SECTORS_IN_CX_TO_QWORDS
141; shr cx, 1
142 mov ch, cl ; 2 bytes shorter but possibly slower
143 mov cl, 3
144 shr cx, cl
145%endif
146%endmacro
147
148
[400]149%endif ; IDE_IO_INC
Note: See TracBrowser for help on using the repository browser.