A compiler for C Language
C program -> Lexer -> Parser -> Quarter (Intermediate expression) -> DAG optimization (optional) -> MIPS instructions
const int NUMBER=2
const char cha = '*';
int targetvar;
int ADD(int a,int b){
return (+a++b);
}
void guess(int a,int b){
int guessnum;
guessnum=(a+b)/2;
if(guessnum>targetvar){
printf("\nToo large!Upper bound now is:",guessnum);
guess (a,guessnum);
return;
}
if(guessnum<targetvar){
printf("\nToo small!Lower bound now is:",guessnum);
guess(guessnum,b);
return;
}
if(guessnum==targetvar){
printf("\nCongrats!Correct number:",guessnum);
return;
}
}
int fib(x){
if (x<=0){
printf("fib para error! return ERROR CODE = -1\t");
return (-1);
}
if(x==1)
return (1);
if(x==2)
return (1);
return ((fib(x-1)+fib(x-2)));
}
void main(){
const int TEN = 10;
int option,i;
int x,y;
int chaint;
int array[10];
char cha_;
i=1;
if(i<NUMBER){
scanf(option,x,y);
switch(option){
case 1:{targetvar=10;guess(0,20);}
case 2:{targetvar=8;guess(0,20);}
case 3:{targetvar=11;guess(0,20);}
case 4:{targetvar=16;guess(0,20);}
default:printf("\nWrong option!");
}
}
printf("\n",ADD(x,y));
printf("\n");
while(i<TEN){
chaint=cha+i;
cha_=cha+i;
printf("\t", cha_);
printf("\t",chaint);
printf("\t\t");
i=i+1;
}
printf("\nFib sum is :",fib(ADD(x,y)+1)+10);
printf("\nFib sum is :",fib(-ADD(x,y+x)+1)+1);
array[3*6-10] = ADD(x,y+1);
array[0] = array[8]+1;
printf("\nArray[0]:",array[10*9*8*0]);
return;
}LAB Label_1
ADD (0),a,b
RET (0)
LAB Label_2
ADD (1),a,b
DIV (2),(1),2
ASG guessnum,(2)
BLE Label_3,guessnum,targetvar
WRT "\nToo large!Upper bound now is:"
WRT guessnum
SAVE
PUSH guess,a,1
PUSH guess,guessnum,2
CALVF guess
RET
LAB Label_3
BGE Label_4,guessnum,targetvar
WRT "\nToo small!Lower bound now is:"
WRT guessnum
SAVE
PUSH guess,guessnum,1
PUSH guess,b,2
CALVF guess
RET
LAB Label_4
BNE Label_5,guessnum,targetvar
WRT "\nCongrats!Correct number:"
WRT guessnum
RET
LAB Label_5
RET
LAB Label_6
BGT Label_7,x,0
WRT "fib para error! return ERROR CODE = -1\t"
RET -1
LAB Label_7
BNE Label_8,x,1
RET 1
LAB Label_8
BNE Label_9,x,2
RET 1
LAB Label_9
SUB (3),x,1
SAVE
PUSH fib,(3),1
CALF fib,(4)
SUB (5),x,2
SAVE
PUSH fib,(5),1
CALF fib,(6)
ADD (7),(4),(6)
RET (7)
LAB Label_10
WRT "\ncall void in state successfully!"
WRT x
RET
LAB Label_11
BEQ Label_12,is_state,0
WRT "\ncall int in state successfully!"
WRT y
LAB Label_12
ADD (8),y,1
RET (8)
LAB Main
ASG i,1
BGE Label_13,i,NUMBER
RAD option
RAD x
RAD y
BNE Label_15,option,1
ASG targetvar,10
BNE Label_17,cha,42
WRT "\ncase * ascii"
JMP Label_16
LAB Label_17
BNE Label_18,cha,42
BLE Label_19,1,0
WRT "\ncase *"
LAB Label_19
JMP Label_16
LAB Label_18
BNE Label_20,cha,42
WRT "\ncase * ascii"
JMP Label_16
LAB Label_20
BNE Label_21,cha,43
WRT "\ncase + ascii"
JMP Label_16
LAB Label_21
BNE Label_22,cha,43
WRT "\ncase +"
JMP Label_16
LAB Label_22
BNE Label_23,cha,97
WRT "\ncase 4"
JMP Label_16
LAB Label_23
BNE Label_24,cha,5
WRT "\ncase 5"
JMP Label_16
LAB Label_24
LAB Label_16
SAVE
PUSH guess,0,1
PUSH guess,20,2
CALVF guess
JMP Label_14
LAB Label_15
BNE Label_25,option,2
ASG targetvar,8
SAVE
PUSH guess,0,1
PUSH guess,20,2
CALVF guess
JMP Label_14
LAB Label_25
BNE Label_26,option,3
ASG targetvar,11
SAVE
PUSH guess,0,1
PUSH guess,20,2
CALVF guess
JMP Label_14
LAB Label_26
BNE Label_27,option,4
ASG targetvar,16
SAVE
PUSH guess,0,1
PUSH guess,20,2
CALVF guess
JMP Label_14
LAB Label_27
WRT "\nWrong option!"
LAB Label_14
LAB Label_13
WRT "\n"
SAVE
PUSH ADD,x,1
PUSH ADD,y,2
CALF ADD,(9)
WRT (9)
WRT "\n"
LAB Label_28
BGE Label_29,i,SIX
ADD (10),cha,i
ASG chaint,(10)
ADD (11),cha,i
ASG cha_,(11)
WRT "\t"
WRTC cha_
WRT "\t"
WRT chaint
WRT "\t\t"
ADD (12),i,1
ASG i,(12)
JMP Label_28
LAB Label_29
WRT "\nFib sum is :"
SAVE
PUSH ADD,x,1
PUSH ADD,y,2
CALF ADD,(13)
ADD (14),(13),1
SAVE
PUSH fib,(14),1
CALF fib,(15)
ADD (16),(15),10
WRT (16)
WRT "\nFib sum is :"
ADD (17),y,x
SAVE
PUSH ADD,x,1
PUSH ADD,(17),2
CALF ADD,(18)
NEG (19),(18)
ADD (20),(19),1
SAVE
PUSH fib,(20),1
CALF fib,(21)
ADD (22),(21),1
WRT (22)
MUL (23),3,SIX
ADD (24),(23),-10
OFF (25),array,(24)
ADD (26),-1,x
ADD (27),y,1
SAVE
PUSH ADD,(26),1
PUSH ADD,(27),2
CALF ADD,(28)
ASG (25),(28)
OFF (29),array,0
SEL (30),array,8
ADD (31),(30),1
ASG (29),(31)
WRT "\nArray[8]:"
SUB (32),SIX,2
MUL (33),(32),4
DIV (34),(33),2
SEL (35),array,(34)
WRT (35)
WRT "\nArray[0]:"
SEL (36),array,0
WRT (36)
WRT "\nArray[0]+Array[8]="
SEL (37),array,0
SEL (38),array,8
SAVE
PUSH ADD,(37),1
PUSH ADD,(38),2
CALF ADD,(39)
WRT (39)
SAVE
PUSH call_me_in__state,666,1
PUSH call_me_in__state,1,2
CALF call_me_in__state,(40)
SAVE
PUSH call_me_in__state,666,1
PUSH call_me_in__state,0,2
CALF call_me_in__state,(41)
SAVE
PUSH call_me_in_state,(41),1
CALVF call_me_in_state
WRT "\t"
ADD (42),cha,1
WRTC (42)
RETM
.data
s0: .asciiz "\nToo large!Upper bound now is:"
s1: .asciiz "\nToo small!Lower bound now is:"
s2: .asciiz "\nCongrats!Correct number:"
s3: .asciiz "fib para error! return ERROR CODE = -1\t"
s4: .asciiz "\ncall void in state successfully!"
s5: .asciiz "\ncall int in state successfully!"
s6: .asciiz "\ncase * ascii"
s7: .asciiz "\ncase *"
s8: .asciiz "\ncase * ascii"
s9: .asciiz "\ncase + ascii"
s10: .asciiz "\ncase +"
s11: .asciiz "\ncase 4"
s12: .asciiz "\ncase 5"
s13: .asciiz "\nWrong option!"
s14: .asciiz "\n"
s15: .asciiz "\n"
s16: .asciiz "\t"
s17: .asciiz "\t"
s18: .asciiz "\t\t"
s19: .asciiz "\nFib sum is :"
s20: .asciiz "\nFib sum is :"
s21: .asciiz "\nArray[8]:"
s22: .asciiz "\nArray[0]:"
s23: .asciiz "\nArray[0]+Array[8]="
s24: .asciiz "\t"
.text
la $t0,s0
addi $sp,$t0,396
move $gp,$sp
addi $sp,$sp,36
move $fp,$sp
addi $sp,$sp,204
addi $sp,$sp,12
j Main
nop
Label_1:
lw $t1,0($fp)
lw $t2,4($fp)
add $t1,$t1,$t2
sw $t1,8($fp)
lw $v0,8($fp)
move $k0,$sp
move $sp,$fp
lw $fp,-8($k0)
jr $ra
nop
Label_2:
lw $t1,0($fp)
lw $t2,4($fp)
add $t1,$t1,$t2
sw $t1,12($fp)
lw $t1,12($fp)
li $t2,2
div $t1,$t1,$t2
sw $t1,16($fp)
lw $t1,16($fp)
sw $t1,8($fp)
lw $t1,8($fp)
lw $t2,8($gp)
ble $t1,$t2,Label_3
nop
li $v0,4
la $a0,s0
syscall
li $v0,1
lw $a0,8($fp)
syscall
sw $ra,-4($sp)
lw $t1,0($fp)
sw $t1,0($sp)
lw $t1,8($fp)
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,20
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_2
nop
lw $ra,-4($sp)
move $k0,$sp
move $sp,$fp
lw $fp,-8($k0)
jr $ra
nop
Label_3:
lw $t1,8($fp)
lw $t2,8($gp)
bge $t1,$t2,Label_4
nop
li $v0,4
la $a0,s1
syscall
li $v0,1
lw $a0,8($fp)
syscall
sw $ra,-4($sp)
lw $t1,8($fp)
sw $t1,0($sp)
lw $t1,4($fp)
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,20
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_2
nop
lw $ra,-4($sp)
move $k0,$sp
move $sp,$fp
lw $fp,-8($k0)
jr $ra
nop
Label_4:
lw $t1,8($fp)
lw $t2,8($gp)
bne $t1,$t2,Label_5
nop
li $v0,4
la $a0,s2
syscall
li $v0,1
lw $a0,8($fp)
syscall
move $k0,$sp
move $sp,$fp
lw $fp,-8($k0)
jr $ra
nop
Label_5:
move $k0,$sp
move $sp,$fp
lw $fp,-8($k0)
jr $ra
nop
Label_6:
lw $t1,0($fp)
li $t2,0
bgt $t1,$t2,Label_7
nop
li $v0,4
la $a0,s3
syscall
li $v0,-1
move $k0,$sp
move $sp,$fp
lw $fp,-8($k0)
jr $ra
nop
Label_7:
lw $t1,0($fp)
li $t2,1
bne $t1,$t2,Label_8
nop
li $v0,1
move $k0,$sp
move $sp,$fp
lw $fp,-8($k0)
jr $ra
nop
Label_8:
lw $t1,0($fp)
li $t2,2
bne $t1,$t2,Label_9
nop
li $v0,1
move $k0,$sp
move $sp,$fp
lw $fp,-8($k0)
jr $ra
nop
Label_9:
lw $t1,0($fp)
li $t2,1
sub $t1,$t1,$t2
sw $t1,4($fp)
sw $ra,-4($sp)
lw $t1,4($fp)
sw $t1,0($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,24
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_6
nop
lw $ra,-4($sp)
sw $v0,8($fp)
lw $t1,0($fp)
li $t2,2
sub $t1,$t1,$t2
sw $t1,12($fp)
sw $ra,-4($sp)
lw $t1,12($fp)
sw $t1,0($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,24
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_6
nop
lw $ra,-4($sp)
sw $v0,16($fp)
lw $t1,8($fp)
lw $t2,16($fp)
add $t1,$t1,$t2
sw $t1,20($fp)
lw $v0,20($fp)
move $k0,$sp
move $sp,$fp
lw $fp,-8($k0)
jr $ra
nop
Label_10:
li $v0,4
la $a0,s4
syscall
li $v0,1
lw $a0,0($fp)
syscall
move $k0,$sp
move $sp,$fp
lw $fp,-8($k0)
jr $ra
nop
Label_11:
lw $t1,4($fp)
li $t2,0
beq $t1,$t2,Label_12
nop
li $v0,4
la $a0,s5
syscall
li $v0,1
lw $a0,0($fp)
syscall
Label_12:
lw $t1,0($fp)
li $t2,1
add $t1,$t1,$t2
sw $t1,8($fp)
lw $v0,8($fp)
move $k0,$sp
move $sp,$fp
lw $fp,-8($k0)
jr $ra
nop
#Start here
Main:
li $t1,1
sw $t1,8($fp)
lw $t1,8($fp)
li $t2,2
bge $t1,$t2,Label_13
nop
li $v0,5
syscall
sw $v0,4($fp)
li $v0,5
syscall
sw $v0,12($fp)
li $v0,5
syscall
sw $v0,16($fp)
lw $t1,4($fp)
li $t2,1
bne $t1,$t2,Label_15
nop
li $t1,10
sw $t1,8($gp)
li $t1,42
li $t2,42
bne $t1,$t2,Label_17
nop
li $v0,4
la $a0,s6
syscall
j Label_16
nop
Label_17:
li $t1,42
li $t2,42
bne $t1,$t2,Label_18
nop
li $t1,1
li $t2,0
ble $t1,$t2,Label_19
nop
li $v0,4
la $a0,s7
syscall
Label_19:
j Label_16
nop
Label_18:
li $t1,42
li $t2,42
bne $t1,$t2,Label_20
nop
li $v0,4
la $a0,s8
syscall
j Label_16
nop
Label_20:
li $t1,42
li $t2,43
bne $t1,$t2,Label_21
nop
li $v0,4
la $a0,s9
syscall
j Label_16
nop
Label_21:
li $t1,42
li $t2,43
bne $t1,$t2,Label_22
nop
li $v0,4
la $a0,s10
syscall
j Label_16
nop
Label_22:
li $t1,42
li $t2,97
bne $t1,$t2,Label_23
nop
li $v0,4
la $a0,s11
syscall
j Label_16
nop
Label_23:
li $t1,42
li $t2,5
bne $t1,$t2,Label_24
nop
li $v0,4
la $a0,s12
syscall
j Label_16
nop
Label_24:
Label_16:
sw $ra,-4($sp)
li $t1,0
sw $t1,0($sp)
li $t1,20
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,20
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_2
nop
lw $ra,-4($sp)
j Label_14
nop
Label_15:
lw $t1,4($fp)
li $t2,2
bne $t1,$t2,Label_25
nop
li $t1,8
sw $t1,8($gp)
sw $ra,-4($sp)
li $t1,0
sw $t1,0($sp)
li $t1,20
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,20
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_2
nop
lw $ra,-4($sp)
j Label_14
nop
Label_25:
lw $t1,4($fp)
li $t2,3
bne $t1,$t2,Label_26
nop
li $t1,11
sw $t1,8($gp)
sw $ra,-4($sp)
li $t1,0
sw $t1,0($sp)
li $t1,20
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,20
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_2
nop
lw $ra,-4($sp)
j Label_14
nop
Label_26:
lw $t1,4($fp)
li $t2,4
bne $t1,$t2,Label_27
nop
li $t1,16
sw $t1,8($gp)
sw $ra,-4($sp)
li $t1,0
sw $t1,0($sp)
li $t1,20
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,20
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_2
nop
lw $ra,-4($sp)
j Label_14
nop
Label_27:
li $v0,4
la $a0,s13
syscall
Label_14:
Label_13:
li $v0,4
la $a0,s14
syscall
sw $ra,-4($sp)
lw $t1,12($fp)
sw $t1,0($sp)
lw $t1,16($fp)
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,12
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_1
nop
lw $ra,-4($sp)
sw $v0,68($fp)
li $v0,1
lw $a0,68($fp)
syscall
li $v0,4
la $a0,s15
syscall
Label_28:
lw $t1,8($fp)
li $t2,6
bge $t1,$t2,Label_29
nop
li $t1,42
lw $t2,8($fp)
add $t1,$t1,$t2
sw $t1,72($fp)
lw $t1,72($fp)
sw $t1,20($fp)
li $t1,42
lw $t2,8($fp)
add $t1,$t1,$t2
sw $t1,76($fp)
lw $t1,76($fp)
sw $t1,64($fp)
li $v0,4
la $a0,s16
syscall
li $v0,11
lw $a0,64($fp)
syscall
li $v0,4
la $a0,s17
syscall
li $v0,1
lw $a0,20($fp)
syscall
li $v0,4
la $a0,s18
syscall
lw $t1,8($fp)
li $t2,1
add $t1,$t1,$t2
sw $t1,80($fp)
lw $t1,80($fp)
sw $t1,8($fp)
j Label_28
nop
Label_29:
li $v0,4
la $a0,s19
syscall
sw $ra,-4($sp)
lw $t1,12($fp)
sw $t1,0($sp)
lw $t1,16($fp)
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,12
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_1
nop
lw $ra,-4($sp)
sw $v0,84($fp)
lw $t1,84($fp)
li $t2,1
add $t1,$t1,$t2
sw $t1,88($fp)
sw $ra,-4($sp)
lw $t1,88($fp)
sw $t1,0($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,24
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_6
nop
lw $ra,-4($sp)
sw $v0,92($fp)
lw $t1,92($fp)
li $t2,10
add $t1,$t1,$t2
sw $t1,96($fp)
li $v0,1
lw $a0,96($fp)
syscall
li $v0,4
la $a0,s20
syscall
lw $t1,16($fp)
lw $t2,12($fp)
add $t1,$t1,$t2
sw $t1,100($fp)
sw $ra,-4($sp)
lw $t1,12($fp)
sw $t1,0($sp)
lw $t1,100($fp)
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,12
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_1
nop
lw $ra,-4($sp)
sw $v0,104($fp)
lw $t1,104($fp)
neg $t1,$t1
sw $t1,108($fp)
lw $t1,108($fp)
li $t2,1
add $t1,$t1,$t2
sw $t1,112($fp)
sw $ra,-4($sp)
lw $t1,112($fp)
sw $t1,0($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,24
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_6
nop
lw $ra,-4($sp)
sw $v0,116($fp)
lw $t1,116($fp)
li $t2,1
add $t1,$t1,$t2
sw $t1,120($fp)
li $v0,1
lw $a0,120($fp)
syscall
li $t1,3
li $t2,6
mul $t1,$t1,$t2
sw $t1,124($fp)
lw $t1,124($fp)
li $t2,-10
add $t1,$t1,$t2
sw $t1,128($fp)
la $t1,24($fp)
lw $t2,128($fp)
mul $t2,$t2,4
add $t1,$t1,$t2
sw $t1,132($fp)
li $t1,-1
lw $t2,12($fp)
add $t1,$t1,$t2
sw $t1,136($fp)
lw $t1,16($fp)
li $t2,1
add $t1,$t1,$t2
sw $t1,140($fp)
sw $ra,-4($sp)
lw $t1,136($fp)
sw $t1,0($sp)
lw $t1,140($fp)
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,12
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_1
nop
lw $ra,-4($sp)
sw $v0,144($fp)
lw $t1,144($fp)
lw $t0,132($fp)
sw $t1,0($t0)
la $t1,24($fp)
li $t2,0
mul $t2,$t2,4
add $t1,$t1,$t2
sw $t1,148($fp)
la $t1,24($fp)
li $t2,8
mul $t2,$t2,4
add $t1,$t1,$t2
lw $t1,0($t1)
sw $t1,152($fp)
lw $t1,152($fp)
li $t2,1
add $t1,$t1,$t2
sw $t1,156($fp)
lw $t1,156($fp)
lw $t0,148($fp)
sw $t1,0($t0)
li $v0,4
la $a0,s21
syscall
li $t1,6
li $t2,2
sub $t1,$t1,$t2
sw $t1,160($fp)
lw $t1,160($fp)
li $t2,4
mul $t1,$t1,$t2
sw $t1,164($fp)
lw $t1,164($fp)
li $t2,2
div $t1,$t1,$t2
sw $t1,168($fp)
la $t1,24($fp)
lw $t2,168($fp)
mul $t2,$t2,4
add $t1,$t1,$t2
lw $t1,0($t1)
sw $t1,172($fp)
li $v0,1
lw $a0,172($fp)
syscall
li $v0,4
la $a0,s22
syscall
la $t1,24($fp)
li $t2,0
mul $t2,$t2,4
add $t1,$t1,$t2
lw $t1,0($t1)
sw $t1,176($fp)
li $v0,1
lw $a0,176($fp)
syscall
li $v0,4
la $a0,s23
syscall
la $t1,24($fp)
li $t2,0
mul $t2,$t2,4
add $t1,$t1,$t2
lw $t1,0($t1)
sw $t1,180($fp)
la $t1,24($fp)
li $t2,8
mul $t2,$t2,4
add $t1,$t1,$t2
lw $t1,0($t1)
sw $t1,184($fp)
sw $ra,-4($sp)
lw $t1,180($fp)
sw $t1,0($sp)
lw $t1,184($fp)
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,12
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_1
nop
lw $ra,-4($sp)
sw $v0,188($fp)
li $v0,1
lw $a0,188($fp)
syscall
sw $ra,-4($sp)
li $t1,666
sw $t1,0($sp)
li $t1,1
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,12
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_11
nop
lw $ra,-4($sp)
sw $v0,192($fp)
sw $ra,-4($sp)
li $t1,666
sw $t1,0($sp)
li $t1,0
sw $t1,4($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,12
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_11
nop
lw $ra,-4($sp)
sw $v0,196($fp)
sw $ra,-4($sp)
lw $t1,196($fp)
sw $t1,0($sp)
move $k0,$fp
move $fp,$sp
addi $sp,$sp,4
addi $sp,$sp,12
sw $k0,-8($sp)
jal Label_10
nop
lw $ra,-4($sp)
li $v0,4
la $a0,s24
syscall
li $t1,42
li $t2,1
add $t1,$t1,$t2
sw $t1,200($fp)
li $v0,11
lw $a0,200($fp)
syscall
#RETURN MAIN