message: Fix issue in example
  ecall does not take arguments.
  Furthermore, added some printing to the Factorial example for a bit nicer output.
diff: .data
  argument: .word 7 # Number to find the factorial value of
  +str1: .string "Factorial value of "
  +str2: .string " is "
  .text
  main:
  lw a0, argument # Load argument from static data
  jal ra, fact # Jump-and-link to the 'fact' label
  - ecall 0 # Exit program
  +
  + # Print the result to console
  + mv a1, a0
  + lw a0, argument
  + jal ra, printResult
  +
  + # Exit program
  + li a0, 10
  + ecall
  fact:
  addi sp, sp, -16
  @@ -31,4 +41,30 @@ nfact:
  addi sp, sp, 16
  mul a0, a0, t1
  - jalr x0, x1, 0
  + ret
  +
  +
  +# expects:
  +# a0: Value which factorial number was computed from
  +# a1: Factorial result
  +printResult:
  + mv t0, a0
  + mv t1, a1
  +
  + la a1, str1
  + li a0, 4
  + ecall
  +
  + mv a1, t0
  + li a0, 1
  + ecall
  +
  + la a1, str2
  + li a0, 4
  + ecall
  +
  + mv a1, t1
  + li a0, 1
  + ecall
  +
  + ret
  