Changeset 588 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Inc/RomVars.inc

Timestamp:

Jun 3, 2015, 12:30:54 PM (10 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Changes:

• Fixed a bug in AH24h_HSetBlocks.asm from r550. Trying to set a too large block size with an XT-CF card in DMA transfer mode would corrupt the stack.
• Fixed a bug from r545 where the list of devices under g_szDeviceTypeValues in Strings.asm was no longer up to date causing the boot menu to display the wrong string for devices numbered higher than DEVICE_8BIT_XTCF_PIO8.
• Made some fairly significant changes to the XT-CF code to reduce size. Two changes in functionality; 1) Added a simple check to validate the request for a change of the XT-CF transfer mode. 2) Changing transfer mode to use DMA no longer calls AH24h_SetBlockSize if the block size already is within the limits of DMA transfers. UNTESTED
• XTIDECFG now clears IDEVARS.bIRQ when changing IDE controller to a serial device to keep the boot menu from displaying it since the serial device doesn't use IRQs at all.
• Other minor optimizations.

File:

• trunk/XTIDE_Universal_BIOS/Inc/RomVars.inc (modified) (2 diffs)

trunk/XTIDE_Universal_BIOS/Inc/RomVars.inc

@@ -158 +158 @@
 DEVICE_8BIT_XTIDE_REV2                  EQU ((COUNT_OF_STANDARD_IDE_DEVICES+2)<<1)  ; Or rev 1 with swapped A0 and A3
 ; IDE Register offsets are SHL 1
-XTCF_DEVICE_OFFSET                      EQU 3
-DEVICE_8BIT_XTCF_PIO8                   EQU ((COUNT_OF_STANDARD_IDE_DEVICES+XTCF_DEVICE_OFFSET)<<1) ; XT-CF using 8-bit PIO mode
+DEVICE_8BIT_XTCF_PIO8                   EQU ((COUNT_OF_STANDARD_IDE_DEVICES+3)<<1)  ; XT-CF using 8-bit PIO mode
 DEVICE_8BIT_XTCF_PIO8_WITH_BIU_OFFLOAD  EQU ((COUNT_OF_STANDARD_IDE_DEVICES+4)<<1)  ; XT-CF using 8-bit PIO mode, but with 16-bit instructions
 DEVICE_8BIT_XTCF_PIO16_WITH_BIU_OFFLOAD EQU ((COUNT_OF_STANDARD_IDE_DEVICES+5)<<1)  ; Lo-tech 8-bit IDE Adapter
@@ -169 +168 @@
 DEVICE_SERIAL_PORT                      EQU (COUNT_OF_ALL_IDE_DEVICES<<1)
 
-
+FIRST_XTCF_DEVICE                       EQU DEVICE_8BIT_XTCF_PIO8
+LAST_XTCF_DEVICE                        EQU DEVICE_8BIT_XTCF_DMA
+XTCF_DEVICE_OFFSET                      EQU FIRST_XTCF_DEVICE                       ; Used for XT-CF device <--> mode conversion
 
 ; Master/Slave drive specific parameters