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; Static Name Aliases
;
TITLE bn_mulw.c
.386
F_TEXT SEGMENT WORD USE16 PUBLIC 'CODE'
F_TEXT ENDS
_DATA SEGMENT WORD USE16 PUBLIC 'DATA'
_DATA ENDS
CONST SEGMENT WORD USE16 PUBLIC 'CONST'
CONST ENDS
_BSS SEGMENT WORD USE16 PUBLIC 'BSS'
_BSS ENDS
DGROUP GROUP CONST, _BSS, _DATA
ASSUME DS: DGROUP, SS: DGROUP
F_TEXT SEGMENT
ASSUME CS: F_TEXT
PUBLIC _bn_mul_add_word
_bn_mul_add_word PROC FAR
; Line 58
push bp
push bx
push esi
push di
push ds
push es
mov bp,sp
; w = 28
; num = 26
; ap = 22
; rp = 18
xor esi,esi ;c=0;
mov di,WORD PTR [bp+18] ; load r
mov ds,WORD PTR [bp+20] ; load r
mov bx,WORD PTR [bp+22] ; load a
mov es,WORD PTR [bp+24] ; load a
mov ecx,DWORD PTR [bp+28] ; load w
mov bp,WORD PTR [bp+26] ; load num
shr bp,1 ; div count by 4 and do groups of 4
shr bp,1
je $L555
$L546:
mov eax,ecx
mul DWORD PTR es:[bx] ; w* *a
add eax,DWORD PTR ds:[di] ; + *r
adc edx,0
adc eax,esi
adc edx,0
mov DWORD PTR ds:[di],eax
mov esi,edx
;
mov eax,ecx
mul DWORD PTR es:[bx+4] ; w* *a
add eax,DWORD PTR ds:[di+4] ; + *r
adc edx,0
adc eax,esi
adc edx,0
mov DWORD PTR ds:[di+4],eax
mov esi,edx
;
mov eax,ecx
mul DWORD PTR es:[bx+8] ; w* *a
add eax,DWORD PTR ds:[di+8] ; + *r
adc edx,0
adc eax,esi
adc edx,0
mov DWORD PTR ds:[di+8],eax
mov esi,edx
;
mov eax,ecx
mul DWORD PTR es:[bx+12] ; w* *a
add eax,DWORD PTR ds:[di+12] ; + *r
adc edx,0
adc eax,esi
adc edx,0
mov DWORD PTR ds:[di+12],eax
mov esi,edx
;
add bx,16
add di,16
;
dec bp
je $L555
jmp $L546
;
;
$L555:
mov bp,sp
mov bp,WORD PTR [bp+26] ; load num
and bp,3
dec bp
js $L547
mov eax,ecx
mul DWORD PTR es:[bx] ; w* *a
add eax,DWORD PTR ds:[di] ; + *r
adc edx,0
adc eax,esi
adc edx,0
mov DWORD PTR ds:[di],eax
mov esi,edx
dec bp
js $L547 ; Note that we are now testing for -1
;
mov eax,ecx
mul DWORD PTR es:[bx+4] ; w* *a
add eax,DWORD PTR ds:[di+4] ; + *r
adc edx,0
adc eax,esi
adc edx,0
mov DWORD PTR ds:[di+4],eax
mov esi,edx
dec bp
js $L547
;
mov eax,ecx
mul DWORD PTR es:[bx+8] ; w* *a
add eax,DWORD PTR ds:[di+8] ; + *r
adc edx,0
adc eax,esi
adc edx,0
mov DWORD PTR ds:[di+8],eax
mov esi,edx
$L547:
mov eax,esi
mov edx,esi
shr edx,16
pop es
pop ds
pop di
pop esi
pop bx
pop bp
ret
nop
_bn_mul_add_word ENDP
PUBLIC _bn_mul_word
_bn_mul_word PROC FAR
; Line 76
push bp
push bx
push esi
push di
push ds
push es
xor esi,esi
mov bp,sp
mov di,WORD PTR [bp+18] ; r
mov ds,WORD PTR [bp+20]
mov bx,WORD PTR [bp+22] ; a
mov es,WORD PTR [bp+24]
mov ecx,DWORD PTR [bp+28] ; w
mov bp,WORD PTR [bp+26] ; num
$FC743:
mov eax,ecx
mul DWORD PTR es:[bx]
add eax,esi
adc edx,0
mov DWORD PTR ds:[di],eax
mov esi,edx
dec bp
je $L764
;
mov eax,ecx
mul DWORD PTR es:[bx+4]
add eax,esi
adc edx,0
mov DWORD PTR ds:[di+4],eax
mov esi,edx
dec bp
je $L764
;
mov eax,ecx
mul DWORD PTR es:[bx+8]
add eax,esi
adc edx,0
mov DWORD PTR ds:[di+8],eax
mov esi,edx
dec bp
je $L764
;
mov eax,ecx
mul DWORD PTR es:[bx+12]
add eax,esi
adc edx,0
mov DWORD PTR ds:[di+12],eax
mov esi,edx
dec bp
je $L764
;
add bx,16
add di,16
jmp $FC743
nop
$L764:
mov eax,esi
mov edx,esi
shr edx,16
pop es
pop ds
pop di
pop esi
pop bx
pop bp
ret
nop
_bn_mul_word ENDP
PUBLIC _bn_sqr_words
_bn_sqr_words PROC FAR
; Line 92
push bp
push bx
push si
push di
push ds
push es
mov bp,sp
mov si,WORD PTR [bp+16]
mov ds,WORD PTR [bp+18]
mov di,WORD PTR [bp+20]
mov es,WORD PTR [bp+22]
mov bx,WORD PTR [bp+24]
mov bp,bx ; save a memory lookup later
shr bx,1 ; div count by 4 and do groups of 4
shr bx,1
je $L666
$L765:
mov eax,DWORD PTR es:[di]
mul eax
mov DWORD PTR ds:[si],eax
mov DWORD PTR ds:[si+4],edx
;
mov eax,DWORD PTR es:[di+4]
mul eax
mov DWORD PTR ds:[si+8],eax
mov DWORD PTR ds:[si+12],edx
;
mov eax,DWORD PTR es:[di+8]
mul eax
mov DWORD PTR ds:[si+16],eax
mov DWORD PTR ds:[si+20],edx
;
mov eax,DWORD PTR es:[di+12]
mul eax
mov DWORD PTR ds:[si+24],eax
mov DWORD PTR ds:[si+28],edx
;
add di,16
add si,32
dec bx
je $L666
jmp $L765
$L666:
and bp,3
dec bp ; The copied value of bx (num)
js $L645
;
mov eax,DWORD PTR es:[di]
mul eax
mov DWORD PTR ds:[si],eax
mov DWORD PTR ds:[si+4],edx
dec bp
js $L645
;
mov eax,DWORD PTR es:[di+4]
mul eax
mov DWORD PTR ds:[si+8],eax
mov DWORD PTR ds:[si+12],edx
dec bp
js $L645
;
mov eax,DWORD PTR es:[di+8]
mul eax
mov DWORD PTR ds:[si+16],eax
mov DWORD PTR ds:[si+20],edx
$L645:
pop es
pop ds
pop di
pop si
pop bx
pop bp
ret
_bn_sqr_words ENDP
PUBLIC _bn_div64
_bn_div64 PROC FAR
push bp
mov bp,sp
mov edx, DWORD PTR [bp+6]
mov eax, DWORD PTR [bp+10]
div DWORD PTR [bp+14]
mov edx,eax
shr edx,16
pop bp
ret
_bn_div64 ENDP
F_TEXT ENDS
END
|
