mirror of
https://github.com/openssl/openssl.git
synced 2024-12-09 05:51:54 +08:00
298 lines
4.3 KiB
NASM
298 lines
4.3 KiB
NASM
; Static Name Aliases
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;
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TITLE bn_mulw.c
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.8087
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F_TEXT SEGMENT WORD PUBLIC 'CODE'
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F_TEXT ENDS
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_DATA SEGMENT WORD PUBLIC 'DATA'
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_DATA ENDS
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_CONST SEGMENT WORD PUBLIC 'CONST'
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_CONST ENDS
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_BSS SEGMENT WORD PUBLIC 'BSS'
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_BSS ENDS
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DGROUP GROUP _CONST, _BSS, _DATA
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ASSUME DS: DGROUP, SS: DGROUP
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F_TEXT SEGMENT
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ASSUME CS: F_TEXT
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PUBLIC _bn_mul_add_words
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_bn_mul_add_words PROC FAR
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; Line 58
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push bp
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push bx
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push si
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push di
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push ds
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push es
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mov bp,sp
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; w = 26
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; num = 24
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; ap = 20
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; rp = 16
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xor si,si ;c=0;
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mov di,WORD PTR [bp+16] ; load r
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mov ds,WORD PTR [bp+18] ; load r
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mov bx,WORD PTR [bp+20] ; load a
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mov es,WORD PTR [bp+22] ; load a
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mov cx,WORD PTR [bp+26] ; load w
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mov bp,WORD PTR [bp+24] ; load num
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shr bp,1 ; div count by 4 and do groups of 4
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shr bp,1
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je $L555
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$L546:
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mov ax,cx
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mul WORD PTR es:[bx] ; w* *a
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add ax,WORD PTR ds:[di] ; + *r
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adc dx,0
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adc ax,si
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adc dx,0
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mov WORD PTR ds:[di],ax
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mov si,dx
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;
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mov ax,cx
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mul WORD PTR es:[bx+2] ; w* *a
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add ax,WORD PTR ds:[di+2] ; + *r
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adc dx,0
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adc ax,si
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adc dx,0
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mov WORD PTR ds:[di+2],ax
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mov si,dx
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;
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mov ax,cx
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mul WORD PTR es:[bx+4] ; w* *a
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add ax,WORD PTR ds:[di+4] ; + *r
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adc dx,0
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adc ax,si
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adc dx,0
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mov WORD PTR ds:[di+4],ax
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mov si,dx
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;
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mov ax,cx
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mul WORD PTR es:[bx+6] ; w* *a
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add ax,WORD PTR ds:[di+6] ; + *r
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adc dx,0
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adc ax,si
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adc dx,0
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mov WORD PTR ds:[di+6],ax
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mov si,dx
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;
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add bx,8
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add di,8
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;
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dec bp
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je $L555
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jmp $L546
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;
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;
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$L555:
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mov bp,sp
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mov bp,WORD PTR [bp+24] ; load num
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and bp,3
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dec bp
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js $L547
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mov ax,cx
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mul WORD PTR es:[bx] ; w* *a
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add ax,WORD PTR ds:[di] ; + *r
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adc dx,0
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adc ax,si
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adc dx,0
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mov WORD PTR ds:[di],ax
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mov si,dx
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dec bp
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js $L547 ; Note that we are now testing for -1
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;
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mov ax,cx
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mul WORD PTR es:[bx+2] ; w* *a
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add ax,WORD PTR ds:[di+2] ; + *r
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adc dx,0
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adc ax,si
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adc dx,0
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mov WORD PTR ds:[di+2],ax
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mov si,dx
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dec bp
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js $L547
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;
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mov ax,cx
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mul WORD PTR es:[bx+4] ; w* *a
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add ax,WORD PTR ds:[di+4] ; + *r
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adc dx,0
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adc ax,si
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adc dx,0
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mov WORD PTR ds:[di+4],ax
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mov si,dx
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$L547:
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mov ax,si
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pop es
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pop ds
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pop di
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pop si
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pop bx
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pop bp
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ret
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nop
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_bn_mul_add_words ENDP
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PUBLIC _bn_mul_words
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_bn_mul_words PROC FAR
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; Line 76
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push bp
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push bx
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push si
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push di
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push ds
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push es
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xor si,si
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mov bp,sp
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mov di,WORD PTR [bp+16] ; r
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mov ds,WORD PTR [bp+18]
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mov bx,WORD PTR [bp+20] ; a
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mov es,WORD PTR [bp+22]
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mov cx,WORD PTR [bp+26] ; w
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mov bp,WORD PTR [bp+24] ; num
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$FC743:
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mov ax,cx
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mul WORD PTR es:[bx]
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add ax,si
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adc dx,0
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mov WORD PTR ds:[di],ax
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mov si,dx
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dec bp
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je $L764
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;
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mov ax,cx
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mul WORD PTR es:[bx+2]
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add ax,si
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adc dx,0
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mov WORD PTR ds:[di+2],ax
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mov si,dx
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dec bp
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je $L764
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;
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mov ax,cx
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mul WORD PTR es:[bx+4]
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add ax,si
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adc dx,0
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mov WORD PTR ds:[di+4],ax
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mov si,dx
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dec bp
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je $L764
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;
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mov ax,cx
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mul WORD PTR es:[bx+6]
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add ax,si
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adc dx,0
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mov WORD PTR ds:[di+6],ax
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mov si,dx
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dec bp
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je $L764
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;
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add bx,8
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add di,8
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jmp $FC743
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nop
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$L764:
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mov ax,si
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pop es
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pop ds
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pop di
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pop si
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pop bx
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pop bp
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ret
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nop
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_bn_mul_words ENDP
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PUBLIC _bn_sqr_words
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_bn_sqr_words PROC FAR
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; Line 92
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push bp
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push bx
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push si
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push di
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push ds
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push es
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mov bp,sp
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mov si,WORD PTR [bp+16]
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mov ds,WORD PTR [bp+18]
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mov di,WORD PTR [bp+20]
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mov es,WORD PTR [bp+22]
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mov bx,WORD PTR [bp+24]
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mov bp,bx ; save a memory lookup later
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shr bx,1 ; div count by 4 and do groups of 4
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shr bx,1
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je $L666
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$L765:
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mov ax,WORD PTR es:[di]
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mul ax
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mov WORD PTR ds:[si],ax
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mov WORD PTR ds:[si+2],dx
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;
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mov ax,WORD PTR es:[di+2]
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mul ax
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mov WORD PTR ds:[si+4],ax
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mov WORD PTR ds:[si+6],dx
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;
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mov ax,WORD PTR es:[di+4]
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mul ax
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mov WORD PTR ds:[si+8],ax
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mov WORD PTR ds:[si+10],dx
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;
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mov ax,WORD PTR es:[di+6]
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mul ax
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mov WORD PTR ds:[si+12],ax
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mov WORD PTR ds:[si+14],dx
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;
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add di,8
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add si,16
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dec bx
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je $L666
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jmp $L765
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$L666:
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and bp,3
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dec bp ; The copied value of bx (num)
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js $L645
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;
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mov ax,WORD PTR es:[di]
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mul ax
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mov WORD PTR ds:[si],ax
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mov WORD PTR ds:[si+2],dx
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dec bp
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js $L645
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;
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mov ax,WORD PTR es:[di+2]
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mul ax
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mov WORD PTR ds:[si+4],ax
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mov WORD PTR ds:[si+6],dx
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dec bp
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js $L645
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;
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mov ax,WORD PTR es:[di+4]
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mul ax
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mov WORD PTR ds:[si+8],ax
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mov WORD PTR ds:[si+10],dx
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$L645:
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pop es
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pop ds
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pop di
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pop si
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pop bx
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pop bp
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ret
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_bn_sqr_words ENDP
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PUBLIC _bn_div64
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_bn_div64 PROC FAR
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push bp
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mov bp,sp
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mov dx, WORD PTR [bp+6]
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mov ax, WORD PTR [bp+8]
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div WORD PTR [bp+10]
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pop bp
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ret
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_bn_div64 ENDP
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F_TEXT ENDS
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END
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