StackPP.md

Stack++

Operations

move

Syntax: move <int32> <reg>

1. writes the int32 into the register

push

Syntax: push <int32>

1. pushes the int32 onto the stack

pop

Syntax: pop <reg>

1. pops the int32 from the stack
2. writes the int32 into the register

or

Syntax: or <reg> <int32>

1. read value from reg
2. does 'bitwise or' with the two values
3. put the result back into the reg

xor

Syntax: xor <reg> <int32>

1. read value from reg
2. does 'bitwise xor' with the two values
3. put the result back into the reg

and

Syntax: and <reg> <int32>

1. read value from reg
2. does 'bitwise and' with the two values
3. put the result back into the reg

lshift

Syntax: lshift <reg> <int32>

1. read value from reg
2. shifts the bits of the value x times to the left
3. put the result back into the reg

rshift

Syntax: rshift <reg> <int32>

1. read value from reg
2. shifts the bits of the value x times to the right
3. put the result back into the reg

add

Syntax: add <reg> <int32>

1. read value from reg
2. add two values
3. put the result back into the reg

subtract

Syntax: subtract <reg> <int32>

1. read value from reg
2. subtract two values
3. put the result back into the reg

multiply

Syntax: multiply <reg> <int32>

1. read value from reg
2. multiply two values
3. put the result back into the reg

divide

Syntax: divide <reg> <int32>

1. read value from reg
2. divide two values
3. put the result back into the reg

modulo

Syntax: modulo <reg> <int32>

1. read value from reg
2. divide two values
3. put the rest back into the reg

malloc

Syntax: malloc <int32>

1. allocates x bytes of the memory
2. pushes the pointer to the start onto the stack

free

Syntax: free <int32>

1. frees the chunk of allocated memory at the address

memset

Syntax: memset <int32> <byte>

1. sets the byte at the address

memget

Syntax: memget <int32>

1. read value in memory at the address
2. pushes the value onto the stack