Changeset 602 in xtideuniversalbios for trunk/Assembly_Library/Src/Util/Sort.asm

Timestamp:

May 9, 2019, 8:11:46 PM (6 years ago)

Author:

Krister Nordvall

Message:

Changes:

• SerDrive: Fixed a bug that prevented use of 3.5" 720 KB floppy disk images.
• Also added support for Microsoft DMF (Distribution Media Format) floppy disk images.
• XTIDECFG / Library: Minor size optimizations. Added a new macro (SKIP1B) as part of that.
• BIOS: A small size optimization (2 bytes) to MODULE_8BIT_IDE_ADVANCED that is enabled only when USE_NEC_V is defined.

File:

• trunk/Assembly_Library/Src/Util/Sort.asm (modified) (3 diffs)

trunk/Assembly_Library/Src/Util/Sort.asm

@@ -32 +32 @@
 ;       ES:DI:  Ptr to second item to compare
 ;   Returns:
-;       FLAGS:  Signed comparition between first and second item
+;       FLAGS:  Signed comparison between first and second item
 ;   Corrupts registers:
 ;       Nothing
@@ -56 +56 @@
 Sort_ItemsFromDSSIwithCountInDXsizeInCXandComparatorInBX:
     push    es
-    push    di
-    mov     di, cx
-    eSHL_IM cx, 1                       ; Reserve temp and pivot items
-    add     cx, BYTE QSORT_PARAMS_size
-    eENTER_STRUCT cx
-    push    cx
+    mov     ax, cx
+    eSHL_IM ax, 1                       ; Reserve temp and pivot items
+    add     ax, BYTE QSORT_PARAMS_size
+    eENTER_STRUCT ax
+    push    ax
 
 %ifdef CLD_NEEDED
     cld
 %endif
-    mov     cx, di                      ; Restore item size to CX
     xor     ax, ax                      ; Zero starting index
     dec     dx                          ; Count to index of last item
@@ -76 +74 @@
     pop     ax
     eLEAVE_STRUCT ax
-    pop     di
     pop     es
     ret