major refactor (I'm starting to understand things
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@ -360,6 +360,15 @@ str8_to_cstr_capped:
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;region WinAPI
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%define MS_INVALID_HANDLE_VALUE -1
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%define MS_FILE_ATTRIBUTE_NORMAL 0x00000080
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%define MS_FILE_SHARE_READ 0x00000001
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%define MS_GENERIC_READ 0x80000000
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%define MS_OPEN_EXISTING 3
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%define MS_STD_OUTPUT_HANDLE 11
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%define wapi_shadow_space 32
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; kernel32.lib
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; Console IO
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extern GetStdHandle
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@ -370,40 +379,58 @@ extern CreateFileA
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extern GetFileSizeEx
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extern GetLastError
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extern ReadFile
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extern WriteFileA
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; Process API
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extern ExitProcess
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%define MS_INVALID_HANDLE_VALUE -1
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%define MS_FILE_ATTRIBUTE_NORMAL 0x00000080
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%define MS_FILE_SHARE_READ 0x00000001
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%define MS_GENERIC_READ 0x80000000
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%define MS_OPEN_EXISTING 3
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%define MS_STD_OUTPUT_HANDLE 11
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struc wapi_ctbl
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.shadow: resb 32 ; 32 bytes for RCX, RDX, R8, R9 home
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endstruc
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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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struc GetStdHandle_ctbl
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.shadow: resb 32
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endstruc
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%define wapi_CreateFileA_dwCreationDisposition 32
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%define wapi_CreateFileA_dwFlagsAndAttributes 40
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%define wapi_CreateFileA_hTemplateFile 48
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; rcx: hConsoleOutput
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; rdx: lpBuffer
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; r8: nNumberOfCharsToWrite
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; r9: lpNumberOfCharsWritten
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; s1: lpReserved
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struc WriteConsoleA_ctbl
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.shadow: resq 4
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.lpReserved: resq 1
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.lpNumberOfCharsWritten: resq 1
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._pad_: resq 1
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endstruc
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%define wapi_ReadFile_lpOverlapped 32
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struc CloseHandle_ctbl
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.shadow: resb 32
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.
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endstruc
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%define wapi_write_console_written_chars r9
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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 r9, [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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; r8: dwShareMode
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; r9: lpSecurityAttributes
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; s1: dwCreationDisposition
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; s2: dwFlagsAndAttributes
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; s3: hTemplateFile
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; NOTE: Even though the first two are DWORDs, on the stack they each
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; occupy a full 8-byte slot in the x64 ABI.
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struc CreateFileA_ctbl
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.shadow: resb 32
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.dwCreationDisposition: resb 8
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.dwFlagsAndAttributes: resb 8
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.hTemplateFile: resb 8
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endstruc
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; rcx: hfile
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; rdx: lpbuffer
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; r8: nNumberOfBytesToWrite
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; r9: lpNumberOfBytesWritten
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; s1: lpOverlapped
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struc WriteFileA_ctbl
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.shadow: resb 32
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.lpOverlapped: resb 8
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endstruc
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section .data
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std_out_hndl dq 0
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@ -474,12 +501,12 @@ file_read_contents:
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mov r8, [backing + Slice_Byte.len]
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mov r9, [result + FileOpInfo.content + Slice_Byte.len]
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assert_cmp jle, r9, r8
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jg .error_exit
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jg .error_close_handle
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; MS_BOOL get_size_failed = ! raccumulator
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; if (get_size_failed) goto .error_exit
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assert_cmp jne, raccumulator, false
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je .error_exit
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je .error_close_handle
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; push r14 ; file_size
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%define file_size r14d
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@ -502,7 +529,7 @@ file_read_contents:
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; if (read_failed) goto .error_exit
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mov r9, qword [result + FileOpInfo.content + Slice_Byte.len]
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assert_cmp je, file_size, r9d
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jne .error_exit
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jne .error_close_handle
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; CloseHandle(id_file)
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wapi_shadow_space
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@ -515,6 +542,13 @@ file_read_contents:
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mov [result + FileOpInfo.content + Slice_Byte.ptr], raccumulator
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jmp .cleanup
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.error_close_handle:
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; CloseHandle(id_file)
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wapi_shadow_space
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mov rcounter, rbase
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call CloseHandle
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stack_pop
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.error_exit:
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; result = {}
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mov qword [result + FileOpInfo.content + Slice_Byte.ptr], 0
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@ -544,8 +578,7 @@ section .data
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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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; Setup stdout handle
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stack_push GetStdHandle_ctbl_size
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mov rcounter_32, -MS_STD_OUTPUT_HANDLE
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call GetStdHandle
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mov [std_out_hndl], raccumulator
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@ -561,18 +594,18 @@ global main
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mov qword [local_backing + Slice_Byte.len], Mem_128k_size ; local_backing.len = Mem_128k_size
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lea rcounter, file ; rcounter = file.ptr
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mov rdata, [path_hello_files_asm + Str8.ptr] ; rdata = path_hello_files.ptr
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mov r8, [path_hello_files_asm + Str8.len] ; r9 = path_hello_files.len
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lea r9, [local_backing]
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mov r8, [path_hello_files_asm + Str8.len] ; r8 = path_hello_files.len
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lea r9, [local_backing] ; r9 = & local_backing
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call file_read_contents ; read_file_contents(rcounter, rdata, r8, r9)
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stack_pop
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%pop calling
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wapi_shadow_space
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mov rcounter, [std_out_hndl]
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lea rdata, [file + FileOpInfo.content + Slice_Byte.ptr]
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mov r8_32, [file + FileOpInfo.content + Slice_Byte.len]
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lea r9, [rstack_ptr + wapi_arg4_offset]
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mov qword [rstack_ptr + wapi_arg5_offset], 0
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stack_push WriteConsoleA_ctbl_size ; frame WriteConoleA
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mov rcounter, [std_out_hndl] ; rcounter = std_out_hndl
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lea rdata, [file + FileOpInfo.content + Slice_Byte.ptr] ; rdata = file.content.ptr
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mov r8_32, [file + FileOpInfo.content + Slice_Byte.len] ; r8 = file.content.len
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lea r9, [rstack_ptr + WriteFileA_ctbl.lpNumberOfBytesWritten] ; r9 = & stack.ptr[WriteFileA.ctbl.lpNumberOfBytesWritten]
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mov qword [rstack_ptr + WriteFileA_ctbl.lpReserved], nullptr ; stack.ptr[.ctbl.lpRserved] = nullptr
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call WriteConsoleA
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stack_pop
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@ -79,41 +79,46 @@ breakpoint:
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}
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breakpoint:
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{
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source_location: "hello_files.asm:444:1"
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hit_count: 1
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}
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breakpoint:
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{
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source_location: "hello_files.asm:475:1"
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hit_count: 1
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}
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breakpoint:
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{
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source_location: "hello_files.asm:506:1"
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hit_count: 1
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}
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breakpoint:
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{
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source_location: "hello_files.asm:501:1"
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hit_count: 1
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}
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breakpoint:
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{
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source_location: "hello_files.asm:495:1"
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hit_count: 1
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}
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breakpoint:
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{
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source_location: "hello_files.asm:470:1"
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hit_count: 1
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}
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breakpoint:
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{
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source_location: "hello_files.asm:456:1"
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hit_count: 1
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}
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breakpoint:
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{
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source_location: "hello_files.asm:571:1"
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source_location: "hello_files.asm:469:1"
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hit_count: 0
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}
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breakpoint:
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{
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source_location: "hello_files.asm:474:1"
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hit_count: 0
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}
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breakpoint:
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{
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source_location: "hello_files.asm:494:1"
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hit_count: 0
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}
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breakpoint:
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{
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source_location: "hello_files.asm:500:1"
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hit_count: 0
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}
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breakpoint:
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{
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source_location: "hello_files.asm:504:1"
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hit_count: 0
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}
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breakpoint:
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{
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source_location: "hello_files.asm:516:1"
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hit_count: 0
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}
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breakpoint:
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{
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source_location: "hello_files.asm:510:1"
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hit_count: 0
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}
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breakpoint:
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{
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source_location: "hello_files.asm:443:1"
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hit_count: 1
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}
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breakpoint:
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{
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source_location: "hello_files.asm:455:1"
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hit_count: 0
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}
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