Changeset 181 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Device/Idepack.asm

Timestamp:

Nov 13, 2011, 3:38:40 PM (12 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Changes to all parts of the project:

• Size optimizations.
• Added a define (EXCLUDE_FROM_XTIDECFG) to exclude unused library code from XTIDECFG.
• Tried to minimize time spent with interrupts disabled.
• Some minor attempts to improve speed (reordering instructions etc).
• Tried to improve readability, did some cleanup and fixed some errors in comments.

File:

• trunk/XTIDE_Universal_BIOS/Src/Device/Idepack.asm (modified) (5 diffs)

trunk/XTIDE_Universal_BIOS/Src/Device/Idepack.asm

@@ -20 +20 @@
     jmp     ax
 
-%ifdef MODULE_EBIOS
+
 ;--------------------------------------------------------------------
 ; Idepack_ConvertDapToIdepackAndIssueCommandFromAH
@@ -36 +36 @@
 ;       AL, BX, CX, DX, SI, ES
 ;--------------------------------------------------------------------
+%ifdef MODULE_EBIOS
 ALIGN JUMP_ALIGN
 Idepack_ConvertDapToIdepackAndIssueCommandFromAH:
@@ -60 +61 @@
 %endif
 
+
 ;--------------------------------------------------------------------
 ; Idepack_TranslateOldInt13hAddressAndIssueCommandFromAH
@@ -83 +85 @@
 Idepack_TranslateOldInt13hAddressAndIssueCommandFromAH:
     mov     [bp+IDEPACK.bCommand], ah
-    test    al, al
-    eCSETZ  ah
+
+    xor     ah, ah
+    cmp     ah, al
+    cmc
+    adc     ah, ah
+
     mov     [bp+IDEPACK.bSectorCount], al
     mov     [bp+IDEPACK.bSectorCountHighExt], ah
@@ -100 +106 @@
     call    AccessDPT_GetDeviceControlByteToAL
     mov     [bp+IDEPACK.bDeviceControl], al
-    jmp     Device_OutputCommandWithParameters  
+    jmp     Device_OutputCommandWithParameters