working on hello_files.asm
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136
code/asm/hello_files.asm
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136
code/asm/hello_files.asm
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; Hello Files!
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BITS 64 ; Explicitly specify 64-bit mode
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DEFAULT REL ; Use RIP-relative addressing by default
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;region DSL
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%define marg
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%define rcounter_32 ecx
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%define r8_32 r8d
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%define raccumulator rax
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%define rcounter rcx
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%define rdata rdx
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%define rstack_ptr rsp
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%define rstack_base_ptr rbp
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%define reg9 r9
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;endregion
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;region debug
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%define debug_trap 3
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;endregion
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;region Memory
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%define kilo 1024
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%define nullptr 0
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%macro assert_not_null 1
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cmp %1, nullptr
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jnz %%+.passed
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int debug_trap
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%%+.passed ; macro-unique-prefix (%%) + internal expansion .passed is the label name
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%endmacro
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; Usage: def_Slice %1: <slice_label>
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%macro def_Slice 1
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struc Slice_ %+ %1
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.ptr: resq 1
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.len: resq 1
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endstruc
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%endmacro
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def_Slice Byte
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def_Slice Str8
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;endregion Memory
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;region Str8 Table
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; Usage: lit %1: <slice_label>, %2: <utf-8 literal>
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%macro lit 2
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lit_ %+ %1: db %2
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lit_ %+ %1 %+ _len: equ $ - (lit_ %+ %1)
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%endmacro
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; Usage: stack_slice %1: <type>, %2 <slice id>
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%macro stack_slice %2
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%endmacro
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section .lits progbits noexec nowrite
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lit path_hello_files_asm, `./code/asm/hello_files.asm`
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;endregion Str8 Table
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;region WinAPI
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; kernel32.lib
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; Console IO
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extern GetStdHandle
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extern WriteConsoleA
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; File API
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extern CreateFileA
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extern GetFileSizeEx
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extern GetLastError
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extern ReadFile
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%define MS_STD_OUTPUT_HANDLE 11
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%define wapi_shadow_width 48
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%macro wapi_shadow_space 0
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push rstack_base_ptr
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mov rstack_base_ptr, rstack_ptr
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sub rstack_ptr, wapi_shadow_width
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%endmacro
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%define wapi_arg4_offset 28
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%define wapi_arg5_offset 32
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%define wapi_write_console_written_chars reg9
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%macro wapi_write_console 2
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mov rcounter,[%1] ; Console Handle
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lea rdata, [%2] ; Slice_Str8.Ptr
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mov r8_32, %2 %+ _len ; Slice_Str8.Len
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lea reg9, [rstack_ptr + wapi_arg4_offset] ; Written chars
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mov qword [rstack_ptr + wapi_arg5_offset], 0 ; Reserved (must be 0)
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call WriteConsoleA
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%endmacro
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section .data
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std_out_hndl dq 0
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;endregion
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api_file_read_contents:
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section .text
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%define result ;TODO(Ed): figure out the convention
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%define path ;TODO(Ed): figure out the convention
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%define backing ;TODO(Ed): figure out the convention
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assert_not_null result
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slice_assert path
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slice_assert backing
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; local_persist scratch_kilo: [64 * kilo]U8; (api_file_read_contents.scratch_kilo)
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%define slice_fmem_scratch ;TODO(Ed): figure this out
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call str8_to_cstr_capped path_c_str, path, slice_fmem_scratch
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; TODO(Ed): Form-fill
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call CreateFileA
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leave
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ret
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section .bss
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api_file_read_contents.scratch_kilo: resb 64 * kilo
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api_file_read_contents.path_cstr: resq 1
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section .text
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global main
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main:
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wapi_shadow_space
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; TODO(Ed): Form-fill
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call api_file_read_contents
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leave
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ret
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76
scripts/build_hello_files.ps1
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76
scripts/build_hello_files.ps1
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$ps1_devshell = join-path $PSScriptRoot 'helpers/devshell.ps1'
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. $ps1_devshell -arch amd64
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$path_root = split-path -Path $PSScriptRoot -Parent
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$path_build = join-path $path_root 'build'
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$path_code = join-path $path_root 'code'
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$path_asm = join-path $path_code 'asm'
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$path_toolchain = join-path $path_root 'toolchain'
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$path_radlink = join-path $path_toolchain 'radlink'
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if ((test-path $path_build) -eq $false) {
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new-item -itemtype directory -path $path_build
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}
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$hello_nasm = join-path $path_asm 'hello_files.asm'
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$listing = join-path $path_build 'hello_files.list'
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$link_obj = join-path $path_build 'hello_files.o'
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$exe = join-path $path_build 'hello_files.exe'
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$nasm = 'nasm'
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$radlink = join-path $path_radlink 'radlink.exe'
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push-location $path_root
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$f_assemble_only = '-a'
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$f_bin_fmt_coff = '-f coff'
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$f_bin_fmt_win64 = '-f win64'
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$f_debug = '-g'
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$f_debug_fmt_win64 = '-g cv8'
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$f_dmacro = '-Dmacro='
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$f_Ipath = '-Ipath '
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$f_listing = '-l'
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$f_preprocess_only = '-E'
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$f_optimize_none = '-O0'
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$f_optimize_min = '-O1'
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$f_optimize_multi = '-Ox'
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$f_optimize_multi_disp = '-Ov'
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$f_outfile = '-o '
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$f_warnings_as_errors = '-Werror'
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$args = @(
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$hello_nasm,
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$f_optimize_none,
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# $f_preprocess_only,
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$f_bin_fmt_win64,
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$f_debug_fmt_win64,
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($f_listing + $listing),
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($f_outfile + $link_obj)
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)
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& $nasm $args
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$lib_kernel32 = 'kernel32.lib'
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$lib_msvcrt = 'msvcrt.lib'
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$link = 'link.exe'
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$link_debug = '/DEBUG:'
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$link_entrypoint = '/ENTRY:'
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$link_library = '/'
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$link_outfile = '/OUT:'
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$link_win_machine_64 = '/MACHINE:X64'
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$link_win_subsystem_console = '/SUBSYSTEM:CONSOLE'
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$link_win_subsystem_windows = '/SUBSYSTEM:WINDOWS'
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$rad_debug = '/RAD_DEBUG'
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$rad_debug_name = '/RAD_DEBUG_NAME:'
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$rad_large_pages = '/RAD_LARGE_PAGES:'
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$args = @(
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$rad_debug,
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# ($link_debug + 'FULL'),
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$link_win_machine_64,
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$link_win_subsystem_console,
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$lib_kernel32,
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# $lib_msvcrt,
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($link_entrypoint + 'main'),
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($link_outfile + $exe),
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$link_obj
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)
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& $radlink $args
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pop-location
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