lab0

lab0/01-hello.s

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+#       RISC-V Example in RARS
+#       Comments.  Anything after # is comments.
+
+        # .data starts data segments
+        .data
+        # msg is a label in data segment 
+        # .asciz specifies an ASCII string ends with a NUL character
+        # we can also use ".string", instead of ".asciz"
+msg:    .asciz  "Hello, welcome to CSE 3666.\n"
+
+        # .text starts code segments
+        .text
+        .globl  main    # declare main to be global. Note it is ".globl"
+
+        # define a label, in code segment
+main:   
+        la      a0, msg         # load the address of the string
+        addi    a7, zero, 4     # set the system call number. 4 for printing a string
+        ecall                   # system call
+
+        # system call 10: exit with code 0
+        addi    a7, zero, 10    # set the system call number
+        ecall                   # system call

lab0/lab0.md

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+# Getting prepared
+
+*Deadline:* Sunday, 1/28/2024.
+
+Check 
+
+*If you work on a lab computer or UConn AnyWare Desktop, save your files to
+cloud storage like OneDrive. Otherwise, you may lose your files.*
+
+## Learning Objectives
+
+*   Run a RISC-V programs in RARS. 
+
+*   Conversion of non-negative numbers to a different radix.
+
+## Description
+
+### Task 1
+
+Follow the instructions on [this page](https://github.com/zhijieshi/cse3666/blob/master/misc/rars.md) 
+to install RARS and run RISC-V programs in RARS. The page has a link 
+to [RISC-V examples.](https://github.com/zhijieshi/cse3666/tree/master/rv-examples)
+
+Copy code in `01-hello.s` to a new file `lab0.s`. Modify the `msg` string so
+the program prints the following. There is no space after the ending dot. 
+
+    Hello, welcome to CSE 3666. Spring is coming.
+
+Submit `lab0.s` in Gradescope. There is a link in HuskyCT.
+
+### Task 2
+
+Study the slides in `lab0-numbers.pdf` to learn/review converson of numbers of 
+different radices. 
+
+*   Binary to decimal.
+*   Decimal to binary.
+*   Hexadecimal to decimal.
+*   Decimal to hexadecimal.
+
+Practice on [this page](https://zhijieshi.github.io/cse3666/binarynumbers/).
+For now, you can click the Config button and uncheck "Bits are signed".
+
+## Deliverables
+
+Submit `lab0.s` in HuskyCT. 
+