# INSTRUCTION SYNTAX
# instr <src> <dst> OR instr <target> <amount>
# or instr <src1> <src2> <dst>
# or instr <src1> <src2> <src3> <dst>
# no 4 src instructions built in or pseudo instructions, but functions can have >= 4 args

# Ignore everything between '#' and '\n'

.data
string hello "Hello, World!\n"

.code
start:
    loadint 5, x0  
    loadfloat 5.0, f0

    # cast integer register to float (use a library?)
    cast_f32_i32 x0, f1
    f32add x0, f0

    shiftleft x0, 1
    beq _success x0, 0

_success:
    extern print
    # set args
    loadaddr success_string, a0
    # stdout = 0 (fd)
    loadval 0, a1
    # basically saveaddr this; jumpaddr print
    call print

_hello:
    # stream hello world to stdout
    extern print
    loadaddr hello, a0
    loadval 0, a1
    call print

_exit:
    # to 'exit', one must end program execution and tell kernel to close the process and cleanup the resources. Kernel does that anyway, e.g. if SIGKILL was sent
    # exit syscall = 4
    loadval 4, a0
    # exit value, 0 success, 1 failure
    loadval 0, a1
    syscall

# castf32i32, a pseudo instruction linked as a library in phantasm

.data
string success_string "Success!\n"