Notes_Assemblyx64

.text
# CONSTANTS

MYNAME:    .string    "Melvin\n"
FORMATD:   .string    "%s" # %d: numbers | %s: for text

.global main

main:
    enter $0,$0        #   Boilerplate: preserve caller bp and init callee bp

    movq  $FORMATD, %rdi # 1st argument: FORMAT DIGIT
    movq  $MYNAME, %rsi  # 2st argument: Melvin
    call  printf       # C printf(%rdi: %d, $MYNAME: "Melvin")

    xor   %rdi, %rdi   #   set the return code to magic num
    leave              #   Boilerplate: set the bp back to what it was for our fellow caller, and reset our sp to the top of it's stackframe and this line is getting prettylong
    call  exit         # C exit(%rdi)

# movq $andy, %rip

################MEMORY##################
### STACK

# The Lgenedary Caller
# --- # 0xffffff72: 13    <--- %rbp
#       0xffffff64: 24
# --- # 0xffffff56: 35

# We, the callee
# --- # 0xffffff48: 0xffffff72     <--- %rsp
#       0xffffff40: 0x69
# --- # 0xffffff32: 69


####  HEAP

# 0x0fff4242:  ""

# 0x0fee3232:  0x42



### CONST


# 0x0f231848:  "M"
# 0x0f231850:   e    97
# 0x0f231852:   l    ab


#PROGRAM
# 0x20 (main): F0 00 00
# 0x21: 3f c3
# 0x22:
# 0x23:


################REGISTERS##################

# (destination index) rdi: 1st arg
# (source index)      rsi: 2nd arg
# (data)              rdx:
# (counter)           rcx:
# (temp8)             r8:
# (temp9)             r9:

# (base)              rbx: 22

# (base pointer)      rbp: 0xffffff72
# (stack pointer)     rsp: 0xffffff48
# (instruction ptr)   rip:


###### SYMBOL TABLEEEE YEEEE BOIIIII
# printf
# scanf
# exit
# "c standard lib stuff"
# " some other stuffffff"
# main
# bananderp


####### SHELSLLLLLL
# ~$ ./programname -> call bananderp