Changeset 148 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/Common/HIRQ.asm

Timestamp:

Mar 19, 2011, 8:09:41 PM (14 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

Changes to XTIDE Universal BIOS:

• INT 13h optimizations to save almost 100 bytes.

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/Common/HIRQ.asm (modified) (3 diffs)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/Common/HIRQ.asm

@@ -8 +8 @@
 ; HIRQ_WaitForIRQ
 ;   Parameters:
-;       DS:     RAMVARS segment
+;       DS:BX:  Ptr to DPT
 ;   Returns:
 ;       CF:     Set if wait done by operating system
@@ -36 +36 @@
 
     LOAD_BDA_SEGMENT_TO ds, ax, !       ; Zero AX
+    mov     ah, OS_HOOK_DEVICE_BUSY     ; Hard disk busy (AX=9000h)
     cli                                 ; Disable interrupts
     cmp     al, [BDA.bHDTaskFlg]        ; Task flag already set?
     jc      SHORT .ReturnFromWaitNotify ;  If so, skip OS notification
-
-    mov     ah, 90h                     ; Hard disk busy (AX=9000h)
-    int     INTV_SYSTEM_SERVICES        ; OS hook, device busy
+    int     BIOS_SYSTEM_INTERRUPT_15h   ; OS hook, device busy
     jnc     SHORT .ReturnFromWaitNotify ; CF cleared, BIOS handles waiting
 
@@ -106 +105 @@
 
     ; Issue Int 15h, function AX=9100h (Interrupt ready)
-    mov     ax, 9100h                   ; Interrupt ready, device 0 (HD)
-    int     INTV_SYSTEM_SERVICES
+    mov     ax, OS_HOOK_DEVICE_POST<<8  ; Interrupt ready, device 0 (HD)
+    int     BIOS_SYSTEM_INTERRUPT_15h
 
     pop     ax                          ; Restore AX