save 4 bytes in __LZMA_ELF00__

2006-06-24 16:48:43 -07:00
parent 02bc48925a
commit dd5b7825d5
11 changed files with 5723 additions and 5728 deletions
@@ -93,24 +93,22 @@ LZMA_LIT_SIZE  equ  768

        mov     ebp, esp                ; save stack

-        xor eax,eax  ; 0
+        xor eax,eax     ; 0
        lodsb           ; al= 1 byte for LzmaDecodeProperties()
        mov dl,9
        div dl          ; (ah:rem, al:quo)= ax / dl
        mov cl,ah       ; cl = lit_context_bits
-        movzx eax,al    ; 1st_byte / 9
+        mov ah,0        ; ax= 1st_byte / 9
        mov dl,5
        div dl          ; ah= lit_pos_bits; al= pos_bits
-        mov ch,cl       ; ch  = lit_context_bits
+        mov ch,cl       ; ch = lit_context_bits

        add cl,ah       ; cl = lit_context_bits + lit_pos_bits;
        mov ebx, -LZMA_LIT_SIZE
        sal ebx, cl
-        add ebx, -LZMA_BASE_SIZE
-
 ; /* inSizeProcessed, outSizeProcessed, *_bits, CLzmaDecoderState */
-        lea ebx,[-(2*4 +4) + 2*ebx + esp]
-        and ebx, byte (~0<<4)  ; 16-byte align
+        lea ebx,[-(2*4 +4) + 2*(-LZMA_BASE_SIZE + ebx) + esp]
+        and ebx, byte (~0<<5)  ; 32-byte align
 .elf_clearstack1:
        push byte 0
        cmp esp,ebx