Recitation_week_6 - This week please mainly help the students with how to run codes with SPIM 1 Use any editor to write the source file 2 Run

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This week, please mainly help the students with how to run codes with SPIM. 1. Use any editor to write the source file. 2. Run PCSpim or QtSpim, load the source file. 3. F10 to step through the code. Please make sure that every student is able to run SPIM. Then, you may explain to them what a complete MIPS code should be. It has a data segment and a code segment. The beginning of the data segment in the assembly source code is indicated as .data and followed by several declarations such as msg: .asciiz "hello world" meaning an asciiz string whose starting address is associated with label ``msg.’’ Or A: .word 0,1,2,3,4,5,6,7,8,9 meaning an array of words whose starting address is associated with label ``A.’’ Or msg_empty: .space 400 meaning 400 bytes in the memory whose starting address is associated with label ``msg_empty.’’ The text segment in the source code usually starts with .text .globl main main: where ``main’’ is the label associated with the address of the first instruction of the code. And the code usually ends with li $v0,10 #exit syscall
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This document was uploaded on 12/04/2011.

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Recitation_week_6 - This week please mainly help the students with how to run codes with SPIM 1 Use any editor to write the source file 2 Run

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