Changeset 601 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdePioBlock.asm

Timestamp:

Feb 14, 2019, 7:38:08 PM (6 years ago)

Author:

Krister Nordvall

Message:

Changes:

• Building the BIOS now works again.
• Added a new IDE device type/transfer mode for use only with XT-IDE rev 2+ (or Chuck(G)-modded rev 1) cards installed in any of the following machines: Olivetti M24, AT&T PC6300, Xerox 6060 and Logabax Persona 1600. This new transfer mode is slightly faster than the regular XT-IDE rev 1 device type and requires that the card is configured for High Speed mode (or, in case of the card being a rev 1 card, has the Chuck(G) mod done). The new device type is called "XTIDE rev 2 (Olivetti M24)" in XTIDECFG.
• Made some minor improvements to the library code that handles 'Drive Not Ready' errors in XTIDECFG.
• Optimizations.

File:

• trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdePioBlock.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdePioBlock.asm

@@ -55 +55 @@
 
 ;--------------------------------------------------------------------
+; IdePioBlock_ReadFromXtideRev2_Olivetti
+;   Parameters:
+;       CX:     Block size in 512 byte sectors
+;       DX:     IDE Data port address
+;       ES:DI:  Normalized ptr to buffer to receive data
+;   Returns:
+;       Nothing
+;   Corrupts registers:
+;       AX, CX
+;--------------------------------------------------------------------
+ALIGN JUMP_ALIGN
+IdePioBlock_ReadFromXtideRev2_Olivetti:
+    UNROLL_SECTORS_IN_CX_TO_OWORDS
+ALIGN JUMP_ALIGN
+.InswLoop:
+    %rep 8  ; WORDs
+        XTIDE_MOD_OLIVETTI_INSW
+    %endrep
+    loop    .InswLoop
+    ret
+
+
+;--------------------------------------------------------------------
 ; 8-bit PIO from a single data port.
 ;