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Update hex0_AMD64_POSIX.hex0

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Andrius Štikonas 2022-07-16 18:53:32 +01:00
parent 4afbfc56cc
commit be031a577c
1 changed files with 58 additions and 56 deletions
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Development/rootfs/hex0_AMD64_POSIX.hex0
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@ -1,5 +1,6 @@
### Copyright (C) 2016 Jeremiah Orians ### Copyright (C) 2016 Jeremiah Orians
### Copyright (C) 2017 Jan Nieuwenhuizen <janneke@gnu.org> ### Copyright (C) 2017 Jan Nieuwenhuizen <janneke@gnu.org>
### Copyright (C) 2022 Andrius Štikonas <andrius@stikonas.eu>
### This file is part of stage0. ### This file is part of stage0.
### ###
### stage0 is free software: you can redistribute it and/or modify ### stage0 is free software: you can redistribute it and/or modify
@ -59,8 +60,8 @@
00 00 60 00 00 00 00 00 ## p_vaddr 00 00 60 00 00 00 00 00 ## p_vaddr
00 00 60 00 00 00 00 00 ## p_physaddr 00 00 60 00 00 00 00 00 ## p_physaddr
95 01 00 00 00 00 00 00 ## p_filesz 4E 01 00 00 00 00 00 00 ## p_filesz
95 01 00 00 00 00 00 00 ## p_memsz 4E 01 00 00 00 00 00 00 ## p_memsz
01 00 00 00 00 00 00 00 ## Required alignment 01 00 00 00 00 00 00 00 ## Required alignment
@ -73,57 +74,60 @@
58 ; POP_RAX # Get the number of arguments 58 ; POP_RAX # Get the number of arguments
5F ; POP_RDI # Get the program name 5F ; POP_RDI # Get the program name
5F ; POP_RDI # Get the actual input name 5F ; POP_RDI # Get the actual input name
BE 00000000 ; LOADI32_ESI %0 # prepare read_only 31F6 ; XOR_ESI_ESI # prepare read_only, rsi = 0
B8 02000000 ; LOADI32_EAX %2 # the syscall number for open() 6A02 ; PUSH_2 # prepare syscall number
58 ; POP_RAX # the syscall number for open()
0F05 ; SYSCALL # Now open that damn file 0F05 ; SYSCALL # Now open that damn file
4989C1 ; COPY_RAX_to_R9 # Preserve the file pointer we were given 4989C1 ; COPY_RAX_to_R9 # Preserve the file pointer we were given
5F ; POP_RDI # Get the actual output name 5F ; POP_RDI # Get the actual output name
BE 41020000 ; LOADI32_ESI %577 # Prepare file as O_WRONLY|O_CREAT|O_TRUNC BE 41020000 ; LOADI32_ESI %577 # Prepare file as O_WRONLY|O_CREAT|O_TRUNC
BA C0010000 ; LOADI32_EDX %448 # Prepare file as RWX for owner only (700 in octal) BA C0010000 ; LOADI32_EDX %448 # Prepare file as RWX for owner only (700 in octal)
B8 02000000 ; LOADI32_EAX %2 # the syscall number for open() 6A02 ; PUSH_2 # prepare syscall number
58 ; POP_RAX # the syscall number for open()
0F05 ; SYSCALL # Now open that damn file 0F05 ; SYSCALL # Now open that damn file
4989C2 ; COPY_RAX_to_R10 # Preserve the file pointer we were given 4989C2 ; COPY_RAX_to_R10 # Preserve the file pointer we were given
# Our flag for byte processing # Our flag for byte processing
49C7C7 FFFFFFFF ; LOADI32_R15 %-1 6AFF ; PUSH_-1
415F ; POP_R15 # r15 = -1
# temp storage for the sum # temp storage for the sum
49C7C6 00000000 ; LOADI32_R14 %0 4531F6 ; XOR_R14D_R14D # r14 = 0
#:loop #:loop
# Read a byte # Read a byte
E8 BA000000 ; CALLI32 %read_byte E8 95000000 ; CALLI32 %read_byte
# process byte # process byte
E8 34000000 ; CALLI32 %hex E8 24000000 ; CALLI32 %hex
# deal with -1 values # deal with -1 values
4883F8 00 ; CMP_RAX_Immediate8 !0 4885C0 ; TEST_RAX_RAX
7C F0 ; JL8 !loop 7C F1 ; JL8 !loop
# deal with toggle # deal with toggle
4983FF 00 ; CMP_R15_Immediate8 !0 4D85FF ; TEST_R15_R15 # jump if r15 >= 0
7D 0C ; JGE8 !print 7D 08 ; JGE8 !print
# process first byte of pair # process first byte of pair
4989C6 ; MOVE_R14_RAX 4989C6 ; MOVE_R14_RAX
49C7C7 00000000 ; LOADI32_R15 %0 4531FF ; XOR_R15D_R15D # r15 = 0
EB DE ; JMP8 !loop EB E4 ; JMP8 !loop
# process second byte of pair # process second byte of pair
#:print #:print
# update the sum and store in output # update the sum and store in output
49C1E6 04 ; SHL_R14_Immediate8 !4 49C1E6 04 ; SHL_R14_Immediate8 !4
4C01F0 ; ADD_RAX_R14 4C01F0 ; ADD_RAX_R14
880425 68016000 ; STORE8_al_Absolute32 &output
# flip the toggle # flip the toggle
49C7C7 FFFFFFFF ; LOADI32_R15 %-1 6AFF ; PUSH_-1
415F ; POP_R15 # r15 = -1
E8 6A000000 ; CALLI32 %write_byte E8 5D000000 ; CALLI32 %write_byte
EB C2 ; JMP8 !loop EB D2 ; JMP8 !loop
#:hex #:hex
# Purge Comment Lines (#) # Purge Comment Lines (#)
@ -136,99 +140,97 @@
# deal all ascii less than '0' # deal all ascii less than '0'
4883F8 30 ; CMP_RAX_Immediate8 !48 4883F8 30 ; CMP_RAX_Immediate8 !48
7C 42 ; JL8 !ascii_other 7C 3E ; JL8 !ascii_other
# deal with 0-9 # deal with 0-9
4883F8 3A ; CMP_RAX_Immediate8 !58 4883F8 3A ; CMP_RAX_Immediate8 !58
7C 2D ; JL8 !ascii_num 7C 29 ; JL8 !ascii_num
# deal with all ascii less than 'A' # deal with all ascii less than 'A'
4883F8 41 ; CMP_RAX_Immediate8 !65 4883F8 41 ; CMP_RAX_Immediate8 !65
7C 36 ; JL8 !ascii_other 7C 32 ; JL8 !ascii_other
# deal with 'A'-'F' # deal with 'A'-'F'
4883F8 47 ; CMP_RAX_Immediate8 !71 4883F8 47 ; CMP_RAX_Immediate8 !71
7C 2B ; JL8 !ascii_high 7C 27 ; JL8 !ascii_high
# deal with all ascii less than 'a' # deal with all ascii less than 'a'
4883F8 61 ; CMP_RAX_Immediate8 !97 4883F8 61 ; CMP_RAX_Immediate8 !97
7C 2A ; JL8 !ascii_other 7C 26 ; JL8 !ascii_other
#deal with 'a'-'f' #deal with 'a'-'f'
4883F8 67 ; CMP_RAX_Immediate8 !103 4883F8 67 ; CMP_RAX_Immediate8 !103
7C 1A ; JL8 !ascii_low 7C 16 ; JL8 !ascii_low
# The rest that remains needs to be ignored # The rest that remains needs to be ignored
EB 22 ; JMP8 !ascii_other EB 1E ; JMP8 !ascii_other
#:purge_comment #:purge_comment
# Read a byte # Read a byte
E8 4A000000 ; CALLI32 %read_byte E8 35000000 ; CALLI32 %read_byte
# Loop if not LF # Loop if not LF
4883F8 0A ; CMP_RAX_Immediate8 !10 4883F8 0A ; CMP_RAX_Immediate8 !10
75 F5 ; JNE8 !purge_comment 75 F5 ; JNE8 !purge_comment
# Otherwise return -1 # Otherwise return -1
48C7C0 FFFFFFFF ; LOADI32_RAX %-1 6AFF ; PUSH_-1
C3 ; RETQ 58 ; POP_RAX # rax = -1
C3 ; RET
#:ascii_num #:ascii_num
4883E8 30 ; SUB_RAX_Immediate8 !48 4883E8 30 ; SUB_RAX_Immediate8 !48
C3 ; RETQ C3 ; RET
#:ascii_low #:ascii_low
4883E8 57 ; SUB_RAX_Immediate8 !87 4883E8 57 ; SUB_RAX_Immediate8 !87
C3 ; RETQ C3 ; RET
#:ascii_high #:ascii_high
4883E8 37 ; SUB_RAX_Immediate8 !55 4883E8 37 ; SUB_RAX_Immediate8 !55
C3 ; RETQ C3 ; RET
#:ascii_other #:ascii_other
48C7C0 FFFFFFFF ; LOADI32_RAX %-1 6AFF ; PUSH_-1
C3 ; RETQ 58 ; POP_RAX # rax = -1
C3 ; RET
#:Done #:Done
# program completed Successfully # program completed Successfully
BF 00000000 ; LOADI32_EDI %0 # All is well 31FF ; XOR_EDI_EDI # All is well, rdi = 0
B8 3C000000 ; LOADI32_RAX %60 # put the exit syscall number in rax 6A3C ; PUSH_60 # sycall number for exit is 60
58 ; POP_RAX # put the exit syscall number in rax
0F05 ; SYSCALL # Call it a good day 0F05 ; SYSCALL # Call it a good day
# Writes byte stored in al
#:write_byte #:write_byte
# Print our Hex # Print our Hex
BA 01000000 ; LOADI32_EDX %1 # set the size of chars we want 6A01 ; PUSH_1 # prepare to set rdx to 1
BE 68016000 ; LOADI32_ESI %output # What we are writing 5A ; POP_RDX # set the size of chars we want
50 ; PUSH_RAX # Move output to stack
4889E6 ; COPY_RSP_to_RSI # What we are writing
4C89D7 ; COPY_R10_to_RDI # Where are we writing to 4C89D7 ; COPY_R10_to_RDI # Where are we writing to
B8 01000000 ; LOADI32_EAX %1 # the syscall number for write 6A01 ; PUSH_1 # prepare syscall number for write
58 ; POP_RAX # get the syscall number for write
0F05 ; SYSCALL # call the Kernel 0F05 ; SYSCALL # call the Kernel
5B ; POP_RBX # deallocate stack
C3 ; RET C3 ; RET
# Where we are putting our output
#:output
# Reserve 4bytes of Zeros
00000000 ; NULL
#:read_byte #:read_byte
# Attempt to read 1 byte from STDIN # Attempt to read 1 byte from STDIN
BA 01000000 ; LOADI32_EDX %1 # set the size of chars we want 6A01 ; PUSH_1 # prepare to set rdx to 1
BE 91016000 ; LOADI32_ESI &input # Where to put it 5A ; POP_RDX # set the size of chars we want
53 ; PUSH_RBX # allocate stack
4889E6 ; COPY_RSP_to_RSI # Where to put it
4C89CF ; COPY_R9_to_RDI # Where are we reading from 4C89CF ; COPY_R9_to_RDI # Where are we reading from
B8 00000000 ; LOADI32_EAX %0 # the syscall number for read 31C0 ; XOR_EAX_EAX # the syscall number for read
0F05 ; SYSCALL # call the Kernel 0F05 ; SYSCALL # call the Kernel
4885C0 ; TEST_RAX_RAX # check what we got 4885C0 ; TEST_RAX_RAX # check what we got
74 C2 ; JE8 !Done # Got EOF call it done 74 D5 ; JE8 !Done # Got EOF call it done
# load byte # load byte
8A0425 91016000 ; LOAD8_al_Absolute32 &input # load char 58 ; POP_RAX # load char
480FB6C0 ; MOVZBQ_RAX_AL # We have to zero extend it to use it
C3 ; RET C3 ; RET
# Where we get our input
#:input
# Reserve 4bytes of Zeros
00000000 ; NULL
#:ELF_end #:ELF_end