flipper.asm

https://powcoder.com
代写代考加微信 powcoder
Assignment Project Exam Help
Add WeChat powcoder
#name:
#studentID:

.data
#Must use accurate file path.
#file paths in MARS are relative to the mars.jar file.
# if you put mars.jar in the same folder as test2.txt and your.asm, input: should work.
input:	.asciiz "test1.txt"
output:	.asciiz "flipped.pgm"	#used as output
axis: .word 1 # 0=flip around x-axis....1=flip around y-axis
buffer:  .space 2048		# buffer for upto 2048 bytes
newbuff: .space 2048

#any extra data you specify MUST be after this line 


	.text
	.globl main

main:
    la $a0,input	#readfile takes $a0 as input
    jal readfile


	la $a0,buffer		#$a0 will specify the "2D array" we will be flipping
	la $a1,newbuff		#$a1 will specify the buffer that will hold the flipped array.
	la $a2,axis        #either 0 or 1, specifying x or y axis flip accordingly
	jal flip


	la $a0, output		#writefile will take $a0 as file location we wish to write to.
	la $a1,newbuff		#$a1 takes location of what data we wish to write.
	jal writefile

	li $v0,10		# exit
	syscall

readfile:
#done in Q1


flip:
#Can assume 24 by 7 again for the input.txt file
#Try to understand the math before coding!

writefile:
#slightly different from Q1.
#use as many arguments as you would like to get this to work.
#make sure the header matches the new dimensions!