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- ;
- ; suskaiciuoti / (b+c^2)/(x-b) , kai x>b
- ; y = | 7*a+x , kai x=b
- ; \ c+2*a+x , kai x<b
- ; skaiciai be zenklo
- ; Duomenys a - w, b - b, c - w, x - w, y - b
- stekas SEGMENT STACK
- DB 256 DUP(0)
- stekas ENDS
- duom SEGMENT
- a DW 10 ;10000 ; perpildymo situacijai
- b DB 10
- c DW 8
- x DW 10,20,10,41,12,9,45,6
- kiek = ($-x)/2
- y DB kiek dup(0AAh)
- isvb DB 'x=',6 dup (?), ' y=',6 dup (?), 0Dh, 0Ah, '$'
- perp DB 'Perpildymas', 0Dh, 0Ah, '$'
- daln DB 'Dalyba is nulio', 0Dh, 0Ah, '$'
- netb DB 'Netelpa i baita', 0Dh, 0Ah, '$'
- spausk DB 'Skaiciavimas baigtas, spausk bet kuri klavisa,', 0Dh, 0Ah, '$'
- duom ENDS
- prog SEGMENT
- assume ss:stekas, ds:duom, cs:prog
- pr: MOV ax, duom
- MOV ds, ax
- XOR si, si ; (suma mod 2) si = 0
- XOR di, di ; di = 0
- c_pr: MOV cx, kiek
- JCXZ pab
- cikl:
- MOV al, b
- XOR ah, ah ; MOV ah, 0
- CMP x[si], ax
- JE f2
- JB f3
- f1: MOV ax, c
- MUL c ; dx:ax=c^2
- JC kl1 ; sandauga netilpo i ax
- XCHG ax, dx
- MOV al, b
- XOR ah, ah
- ADD dx, ax ; c^2+b
- JC kl1
- MOV bx, x[si]
- SUB bx, ax ; x-b
- JC kl1
- CMP bx, 0
- JE kl2 ; dalyba is 0
- MOV ax, dx
- XOR dx, dx
- DIV bx ; ax=rez
- JMP re
- f2: MOV ax, 7
- MUL a
- JC kl1 ; sandauga netilpo i ax
- ADD ax, x[si] ;7a+x
- JC kl1
- JMP re
- f3: MOV ax, 2
- MUL a
- JC kl1 ; sandauga netilpo i ax
- ADD ax, c ;2a+c
- JC kl1
- ADD ax, x[si]
- JC kl1
- re:
- CMP ah, 0 ;ar telpa rezultatasi baita
- JE ger
- JMP kl3
- ger: MOV y[di], al
- INC si
- INC si
- INC di
- LOOP cikl
- pab:
- ;rezultatu isvedimas i ekrana
- ;============================
- XOR si, si
- XOR di, di
- MOV cx, kiek
- JCXZ is_pab
- is_cikl:
- MOV ax, x[si] ; isvedamas skaicius x yra ax reg.
- PUSH ax
- MOV bx, offset isvb+2
- PUSH bx
- CALL binasc
- MOV al, y[di]
- XOR ah, ah ; isvedamas skaicius y yra ax reg.
- PUSH ax
- MOV bx, offset isvb+11
- PUSH bx
- CALL binasc
- MOV dx, offset isvb
- MOV ah, 9h
- INT 21h
- ;============================
- INC si
- INC si
- INC di
- LOOP is_cikl
- is_pab:
- ;===== PAUZE ===================
- ;===== paspausti bet kuri klavisa ===
- LEA dx, spausk
- MOV ah, 9
- INT 21h
- MOV ah, 0
- INT 16h
- ;============================
- MOV ah, 4Ch ; programos pabaiga, grizti i OS
- INT 21h
- ;============================
- kl1: LEA dx, perp
- MOV ah, 9
- INT 21h
- XOR al, al
- JMP ger
- kl2: LEA dx, daln
- MOV ah, 9
- INT 21h
- XOR al, al
- JMP ger
- kl3: LEA dx, netb
- MOV ah, 9
- INT 21h
- XOR al, al
- JMP ger
- ; skaiciu vercia i desimtaine sist. ir issaugo
- ; ASCII kode. Parametrai perduodami per steka
- ; Pirmasis parametras ([bp+6])- verciamas skaicius
- ; Antrasis parametras ([bp+4])- vieta rezultatui
- binasc PROC NEAR
- PUSH bp
- MOV bp, sp
- ; naudojamu registru issaugojimas
- PUSHA
- ; rezultato eilute uzpildome tarpais
- MOV cx, 6
- MOV bx, [bp+4]
- tarp: MOV byte ptr[bx], ' '
- INC bx
- LOOP tarp
- ; skaicius paruosiamas dalybai is 10
- MOV ax, [bp+6]
- MOV si, 10
- val: XOR dx, dx
- DIV si
- ; gauta liekana verciame i ASCII koda
- ADD dx, '0' ; galima--> ADD dx, 30h
- ; irasome skaitmeni i eilutes pabaiga
- DEC bx
- MOV [bx], dl
- ; skaiciuojame pervestu simboliu kieki
- INC cx
- ; ar dar reikia kartoti dalyba?
- CMP ax, 0
- JNZ val
- POPA
- POP bp
- RET
- binasc ENDP
- prog ENDS
- END pr
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