diff options
Diffstat (limited to 'mips.html.markdown')
| -rw-r--r-- | mips.html.markdown | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/mips.html.markdown b/mips.html.markdown index b1ef40c4..5e6a9c99 100644 --- a/mips.html.markdown +++ b/mips.html.markdown @@ -65,9 +65,30 @@ hello_world .asciiz "Hello World\n" # Declare a null terminated string ### Math ### _math: # Remember to load your values into a register - lw $t0, num # From the data section - li $t0, 5 # Or from an immediate (constant) + lw $t0, num # From the data section + li $t0, 5 # Or from an immediate (constant) li $t1, 6 - add $t2, $t0, $t1 # $t2 = $t0 + $t1 + add $t2, $t0, $t1 # $t2 = $t0 + $t1 + sub $t2, $t0, $t1 # $t2 = $t0 - $t1 + mul $t2, $t0, $t1 # $t2 = $t0 * $t1 + div $t2, $t0, $t1 # $t2 = $t0 / $t1 (Might not be supported in some versons of MARS) + div $t0, $t1 # Performs $t0 / $t1. Get the quotient using 'mflo' and remainder using 'mfhi' + + # Bitwise Shifting + sll $t0, $t0, 2 # Bitwise shift to the left with immediate (constant value) of 2 + sllv $t0, $t1, $t2 # Shift left by a variable amount in register + srl $t0, $t0, 5 # Bitwise shift to the right (does not sign preserve, sign-extends with 0) + srlv $t0, $t1, $t2 # Shift right by a variable amount in a register + sra $t0, $t0, 7 # Bitwise arithmetic shift to the right (preserves sign) + srav $t0, $t1, $t2 # Shift right by a variable amount in a register + + # Bitwise operators + and $t0, $t1, $t2 # Bitwise AND + andi $t0, $t1, 0xFFF # Bitwise AND with immediate + or $t0, $t1, $t2 # Bitwise OR + ori $t0, $t1, 0xFFF # Bitwise OR with immediate + xor $t0, $t1, $t2 # Bitwise XOR + xori $t0, $t1, 0xFFF # Bitwise XOR with immediate + nor $t0, $t1, $t2 # Bitwise NOR ```
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