Changeset 158 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs

Timestamp:

May 2, 2011, 9:41:51 AM (14 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

Changes to XTIDE Universal BIOS:

• Optimized few bytes.

Location:

trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs

Files:

• AccessDPT.asm (modified) (4 diffs)
• CreateDPT.asm (modified) (2 diffs)
• FindDPT.asm (modified) (3 diffs)

trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/AccessDPT.asm

@@ -34 +34 @@
 AccessDPT_GetDeviceControlByteToAL:
     xor     al, al
-    test    BYTE [di+DPT.wFlags], FLG_DPT_ENABLE_IRQ
+    test    BYTE [di+DPT.bFlagsLow], FLGL_DPT_ENABLE_IRQ
     jnz     SHORT .EnableDeviceIrq
     or      al, FLG_DEVCONTROL_nIEN ; Disable IRQ
@@ -52 +52 @@
 ALIGN JUMP_ALIGN
 AccessDPT_GetAddressingModeForWordLookToBX:
-    mov     bl, [di+DPT.wFlags]
-    and     bx, BYTE MASK_DPT_ADDRESSING_MODE
+    mov     bl, [di+DPT.bFlagsLow]
+    and     bx, BYTE MASKL_DPT_ADDRESSING_MODE
     eSHR_IM bx, ADDRESSING_MODE_FIELD_POSITION-1
     ret
@@ -72 +72 @@
 AccessDPT_GetLCHSfromPCHS:
     xchg    ax, cx
-    mov     cl, [di+DPT.wFlags]
-    and     cl, MASK_DPT_CHS_SHIFT_COUNT    ; Load shift count
+    mov     cl, [di+DPT.bFlagsLow]
+    and     cl, MASKL_DPT_CHS_SHIFT_COUNT   ; Load shift count
     mov     bx, [di+DPT.wPchsCylinders]     ; Load P-CHS cylinders
     shr     bx, cl                          ; Shift to L-CHS cylinders
@@ -115 +115 @@
     eMOVZX  bx, [di+DPT.bIdevarsOffset]         ; CS:BX points to IDEVARS
     add     bx, BYTE IDEVARS.drvParamsMaster    ; CS:BX points to Master Drive DRVPARAMS
-    test    BYTE [di+DPT.wFlags], FLG_DPT_SLAVE
+    test    BYTE [di+DPT.bFlagsLow], FLGL_DPT_SLAVE
     jz      SHORT .ReturnPointerToDRVPARAMS
     add     bx, BYTE DRVPARAMS_size             ; CS:BX points to Slave Drive DRVPARAMS

trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/CreateDPT.asm

@@ -60 +60 @@
     cmp     [cs:bp+IDEVARS.bIRQ], ah        ; Interrupts enabled?
     jz      SHORT .StoreFlags               ;  If not, do not set interrupt flag
-    or      al, FLG_DPT_ENABLE_IRQ
+    or      al, FLGL_DPT_ENABLE_IRQ
 .StoreFlags:
     mov     [di+DPT.wFlags], ax
@@ -172 +172 @@
     cmp     BYTE [es:si+ATA1.bBlckSize], 1  ; Max block size in sectors
     jbe     SHORT .BlockModeTransfersNotSupported
-    or      WORD [di+DPT.wFlags], FLG_DPT_BLOCK_MODE_SUPPORTED
+    or      BYTE [di+DPT.bFlagsHigh], FLGH_DPT_BLOCK_MODE_SUPPORTED
 .BlockModeTransfersNotSupported:
     ; Fall to .StoreDeviceSpecificParameters

trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/FindDPT.asm

@@ -98 +98 @@
 ALIGN JUMP_ALIGN
 IterateToSlaveAtPortCallback:
-    test    BYTE [di+DPT.wFlags], FLG_DPT_SLAVE ; Clears CF
+    test    BYTE [di+DPT.bFlagsLow], FLGL_DPT_SLAVE ; Clears CF
     jnz     SHORT CompareBasePortAddress
     ret     ; Wrong DPT
@@ -104 +104 @@
 ALIGN JUMP_ALIGN
 IterateToMasterAtPortCallback:
-    test    BYTE [di+DPT.wFlags], FLG_DPT_SLAVE
+    test    BYTE [di+DPT.bFlagsLow], FLGL_DPT_SLAVE
     jnz     SHORT ReturnWrongDPT                ; Return if slave drive
 
@@ -146 +146 @@
 ALIGN JUMP_ALIGN
 IterateToDptWithInterruptInServiceFlagSet:
-    test    WORD [di+DPT.wFlags], FLG_DPT_INTERRUPT_IN_SERVICE
+    test    BYTE [di+DPT.bFlagsHigh], FLGH_DPT_INTERRUPT_IN_SERVICE
     jz      SHORT ReturnWrongDPT
     stc                                     ; Set CF since wanted DPT