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; Static Name Aliases
;
TITLE bn_mulw.c
.8087
F_TEXT SEGMENT WORD PUBLIC 'CODE'
F_TEXT ENDS
_DATA SEGMENT WORD PUBLIC 'DATA'
_DATA ENDS
CONST SEGMENT WORD PUBLIC 'CONST'
CONST ENDS
_BSS SEGMENT WORD 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_words
_bn_mul_add_words PROC FAR
; Line 58
push bp
push bx
push si
push di
push ds
push es
mov bp,sp
; w = 26
; num = 24
; ap = 20
; rp = 16
xor si,si ;c=0;
mov di,WORD PTR [bp+16] ; load r
mov ds,WORD PTR [bp+18] ; load r
mov bx,WORD PTR [bp+20] ; load a
mov es,WORD PTR [bp+22] ; load a
mov cx,WORD PTR [bp+26] ; load w
mov bp,WORD PTR [bp+24] ; load num
shr bp,1 ; div count by 4 and do groups of 4
shr bp,1
je $L555
$L546:
mov ax,cx
mul WORD PTR es:[bx] ; w* *a
add ax,WORD PTR ds:[di] ; + *r
adc dx,0
adc ax,si
adc dx,0
mov WORD PTR ds:[di],ax
mov si,dx
;
mov ax,cx
mul WORD PTR es:[bx+2] ; w* *a
add ax,WORD PTR ds:[di+2] ; + *r
adc dx,0
adc ax,si
adc dx,0
mov WORD PTR ds:[di+2],ax
mov si,dx
;
mov ax,cx
mul WORD PTR es:[bx+4] ; w* *a
add ax,WORD PTR ds:[di+4] ; + *r
adc dx,0
adc ax,si
adc dx,0
mov WORD PTR ds:[di+4],ax
mov si,dx
;
mov ax,cx
mul WORD PTR es:[bx+6] ; w* *a
add ax,WORD PTR ds:[di+6] ; + *r
adc dx,0
adc ax,si
adc dx,0
mov WORD PTR ds:[di+6],ax
mov si,dx
;
add bx,8
add di,8
;
dec bp
je $L555
jmp $L546
;
;
$L555:
mov bp,sp
mov bp,WORD PTR [bp+24] ; load num
and bp,3
dec bp
js $L547
mov ax,cx
mul WORD PTR es:[bx] ; w* *a
add ax,WORD PTR ds:[di] ; + *r
adc dx,0
adc ax,si
adc dx,0
mov WORD PTR ds:[di],ax
mov si,dx
dec bp
js $L547 ; Note that we are now testing for -1
;
mov ax,cx
mul WORD PTR es:[bx+2] ; w* *a
add ax,WORD PTR ds:[di+2] ; + *r
adc dx,0
adc ax,si
adc dx,0
mov WORD PTR ds:[di+2],ax
mov si,dx
dec bp
js $L547
;
mov ax,cx
mul WORD PTR es:[bx+4] ; w* *a
add ax,WORD PTR ds:[di+4] ; + *r
adc dx,0
adc ax,si
adc dx,0
mov WORD PTR ds:[di+4],ax
mov si,dx
$L547:
mov ax,si
pop es
pop ds
pop di
pop si
pop bx
pop bp
ret
nop
_bn_mul_add_words ENDP
PUBLIC _bn_mul_words
_bn_mul_words PROC FAR
; Line 76
push bp
push bx
push si
push di
push ds
push es
xor si,si
mov bp,sp
mov di,WORD PTR [bp+16] ; r
mov ds,WORD PTR [bp+18]
mov bx,WORD PTR [bp+20] ; a
mov es,WORD PTR [bp+22]
mov cx,WORD PTR [bp+26] ; w
mov bp,WORD PTR [bp+24] ; num
$FC743:
mov ax,cx
mul WORD PTR es:[bx]
add ax,si
adc dx,0
mov WORD PTR ds:[di],ax
mov si,dx
dec bp
je $L764
;
mov ax,cx
mul WORD PTR es:[bx+2]
add ax,si
adc dx,0
mov WORD PTR ds:[di+2],ax
mov si,dx
dec bp
je $L764
;
mov ax,cx
mul WORD PTR es:[bx+4]
add ax,si
adc dx,0
mov WORD PTR ds:[di+4],ax
mov si,dx
dec bp
je $L764
;
mov ax,cx
mul WORD PTR es:[bx+6]
add ax,si
adc dx,0
mov WORD PTR ds:[di+6],ax
mov si,dx
dec bp
je $L764
;
add bx,8
add di,8
jmp $FC743
nop
$L764:
mov ax,si
pop es
pop ds
pop di
pop si
pop bx
pop bp
ret
nop
_bn_mul_words 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 ax,WORD PTR es:[di]
mul ax
mov WORD PTR ds:[si],ax
mov WORD PTR ds:[si+2],dx
;
mov ax,WORD PTR es:[di+2]
mul ax
mov WORD PTR ds:[si+4],ax
mov WORD PTR ds:[si+6],dx
;
mov ax,WORD PTR es:[di+4]
mul ax
mov WORD PTR ds:[si+8],ax
mov WORD PTR ds:[si+10],dx
;
mov ax,WORD PTR es:[di+6]
mul ax
mov WORD PTR ds:[si+12],ax
mov WORD PTR ds:[si+14],dx
;
add di,8
add si,16
dec bx
je $L666
jmp $L765
$L666:
and bp,3
dec bp ; The copied value of bx (num)
js $L645
;
mov ax,WORD PTR es:[di]
mul ax
mov WORD PTR ds:[si],ax
mov WORD PTR ds:[si+2],dx
dec bp
js $L645
;
mov ax,WORD PTR es:[di+2]
mul ax
mov WORD PTR ds:[si+4],ax
mov WORD PTR ds:[si+6],dx
dec bp
js $L645
;
mov ax,WORD PTR es:[di+4]
mul ax
mov WORD PTR ds:[si+8],ax
mov WORD PTR ds:[si+10],dx
$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 dx, WORD PTR [bp+6]
mov ax, WORD PTR [bp+8]
div WORD PTR [bp+10]
pop bp
ret
_bn_div64 ENDP
F_TEXT ENDS
END
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