;********************************************************************* ;* * ;* UEFI library for fasm by bzt, Public Domain * ;* * ;********************************************************************* ; include x86asm.net's efi.inc ;include 'efi.inc' struc int8 { . db ? } struc int16 { align 2 . dw ? } struc int32 { align 4 . dd ? } struc int64 { align 8 . dq ? } struc intn { align 8 . dq ? } struc dptr { align 8 . dq ? } ;symbols ; EFIERR = 0x8000000000000000 EFI_SUCCESS = 0 EFI_LOAD_ERROR = 1 ;or EFIERR EFI_INVALID_PARAMETER = 2 ;or EFIERR EFI_UNSUPPORTED = 3;or EFIERR EFI_BAD_BUFFER_SIZE = 4;or EFIERR EFI_BUFFER_TOO_SMALL = 5;or EFIERR EFI_NOT_READY = 6;or EFIERR EFI_DEVICE_ERROR = 7;or EFIERR EFI_WRITE_PROTECTED = 8;or EFIERR EFI_OUT_OF_RESOURCES = 9;or EFIERR EFI_VOLUME_CORRUPTED = 10;or EFIERR EFI_VOLUME_FULL = 11;or EFIERR EFI_NO_MEDIA = 12;or EFIERR EFI_MEDIA_CHANGED = 13;or EFIERR EFI_NOT_FOUND = 14;or EFIERR EFI_ACCESS_DENIED = 15;or EFIERR EFI_NO_RESPONSE = 16;or EFIERR EFI_NO_MAPPING = 17;or EFIERR EFI_TIMEOUT = 18;or EFIERR EFI_NOT_STARTED = 19;or EFIERR EFI_ALREADY_STARTED = 20;or EFIERR EFI_ABORTED = 21;or EFIERR EFI_ICMP_ERROR = 22;or EFIERR EFI_TFTP_ERROR = 23;or EFIERR EFI_PROTOCOL_ERROR = 24;or EFIERR ; ConOut Colors :) EFI_BLACK = 0x00 EFI_BLUE = 0x01 EFI_GREEN = 0x02 EFI_CYAN = 0x03 EFI_RED = 0x04 EFI_MAGENTA = 0x05 EFI_BROWN = 0x06 EFI_LIGHTGRAY = 0x07 EFI_BRIGHT = 0x08 EFI_DARKGRAY = 0x08 EFI_LIGHTBLUE = 0x09 EFI_LIGHTGREEN = 0x0A EFI_LIGHTCYAN = 0x0B EFI_LIGHTRED = 0x0C EFI_LIGHTMAGENTA = 0x0D EFI_YELLOW = 0x0E EFI_WHITE = 0x0F EFI_BACKGROUND_BLACK = 0x00 EFI_BACKGROUND_BLUE = 0x10 EFI_BACKGROUND_GREEN = 0x20 EFI_BACKGROUND_CYAN = 0x30 EFI_BACKGROUND_RED = 0x40 EFI_BACKGROUND_MAGENTA = 0x50 EFI_BACKGROUND_BROWN = 0x60 EFI_BACKGROUND_LIGHTGRAY = 0x70 ;helper macro for definition of relative structure member offsets macro struct name { virtual at 0 name name end virtual } ;structures EFI_SYSTEM_TABLE_SIGNATURE equ 49h,42h,49h,20h,53h,59h,53h,54h struc EFI_TABLE_HEADER { .Signature int64 .Revision int32 .HeaderSize int32 .CRC32 int32 .Reserved int32 } struct EFI_TABLE_HEADER struc EFI_SYSTEM_TABLE { .Hdr EFI_TABLE_HEADER .FirmwareVendor dptr .FirmwareRevision int32 .ConsoleInHandle dptr .ConIn dptr .ConsoleOutHandle dptr .ConOut dptr .StandardErrorHandle dptr .StdErr dptr .RuntimeServices dptr .BootServices dptr .NumberOfTableEntries intn .ConfigurationTable dptr } struct EFI_SYSTEM_TABLE struc SIMPLE_TEXT_OUTPUT_INTERFACE { .Reset dptr .OutputString dptr .TestString dptr .QueryMode dptr .SetMode dptr .SetAttribute dptr .ClearScreen dptr .SetCursorPosition dptr .EnableCursor dptr .Mode dptr } struct SIMPLE_TEXT_OUTPUT_INTERFACE ;---include ends struc SIMPLE_INPUT_INTERFACE { .Reset dptr .ReadKeyStroke dptr .WaitForKey dptr } struct SIMPLE_INPUT_INTERFACE struc EFI_BOOT_SERVICES_TABLE { .Hdr EFI_TABLE_HEADER .RaisePriority dptr .RestorePriority dptr .AllocatePages dptr .FreePages dptr .GetMemoryMap dptr .AllocatePool dptr .FreePool dptr .CreateEvent dptr .SetTimer dptr .WaitForEvent dptr .SignalEvent dptr .CloseEvent dptr .CheckEvent dptr .InstallProtocolInterface dptr .ReInstallProtocolInterface dptr .UnInstallProtocolInterface dptr .HandleProtocol dptr .Void dptr .RegisterProtocolNotify dptr .LocateHandle dptr .LocateDevicePath dptr .InstallConfigurationTable dptr .ImageLoad dptr .ImageStart dptr .Exit dptr .ImageUnLoad dptr .ExitBootServices dptr .GetNextMonotonicCount dptr .Stall dptr .SetWatchdogTimer dptr .ConnectController dptr .DisConnectController dptr .OpenProtocol dptr .CloseProtocol dptr .OpenProtocolInformation dptr .ProtocolsPerHandle dptr .LocateHandleBuffer dptr .LocateProtocol dptr .InstallMultipleProtocolInterfaces dptr .UnInstallMultipleProtocolInterfaces dptr .CalculateCrc32 dptr .CopyMem dptr .SetMem dptr } struct EFI_BOOT_SERVICES_TABLE struc EFI_RUNTIME_SERVICES_TABLE { .Hdr EFI_TABLE_HEADER .GetTime dptr .SetTime dptr .GetWakeUpTime dptr .SetWakeUpTime dptr .SetVirtualAddressMap dptr .ConvertPointer dptr .GetVariable dptr .GetNextVariableName dptr .SetVariable dptr .GetNextHighMonoCount dptr .ResetSystem dptr } struct EFI_RUNTIME_SERVICES_TABLE struc EFI_TIME { .Year int16 .Month int8 .Day int8 .Hour int8 .Minute int8 .Second int8 .Pad1 int8 .Nanosecond int32 .TimeZone int16 .Daylight int8 .Pad2 int8 .sizeof rb 1 } struct EFI_TIME EFI_LOADED_IMAGE_PROTOCOL_UUID equ 0A1h,31h,1bh,5bh,62h,95h,0d2h,11h,8Eh,3Fh,0h,0A0h,0C9h,69h,72h,3Bh struc EFI_LOADED_IMAGE_PROTOCOL { .Revision int32 .ParentHandle int64 .SystemTable dptr .DeviceHandle int64 .FilePath dptr .Reserved int64 .LoadOptionsSize int32 .ImageBase dptr .ImageSize int64 .ImageCodeType int32 .ImageDataType int32 .UnLoad dptr } struct EFI_LOADED_IMAGE_PROTOCOL EFI_BLOCK_IO_PROTOCOL_UUID equ 21h,5bh,4eh,96h,59h,64h,0d2h,11h,8eh,39h,00h,0a0h,0c9h,69h,72h,3bh struc EFI_BLOCK_IO_PROTOCOL { .Revision int64 .Media dptr .Reset dptr .ReadBlocks dptr .WriteBlocks dptr .FlushBlocks dptr } struct EFI_BLOCK_IO_PROTOCOL struc EFI_BLOCK_IO_MEDIA { .MediaId int32 .RemovableMedia int8 .MediaPresent int8 .LogicalPartition int8 .ReadOnly int8 .WriteCaching int8 .BlockSize int32 .IoAlign int32 .LastBlock int64 } struct EFI_BLOCK_IO_MEDIA EFI_GRAPHICS_OUTPUT_PROTOCOL_UUID equ 0deh, 0a9h, 42h,90h,0dch,023h,38h,04ah,96h,0fbh,7ah,0deh,0d0h,80h,51h,6ah struc EFI_GRAPHICS_OUTPUT_PROTOCOL { .QueryMode dptr .SetMode dptr .Blt dptr .Mode dptr } struct EFI_GRAPHICS_OUTPUT_PROTOCOL struc EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE { .MaxMode int32 .CurrentMode int32 .ModeInfo dptr .SizeOfModeInfo intn .FrameBufferBase dptr .FrameBufferSize intn } struct EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE struc EFI_GRAPHICS_OUTPUT_MODE_INFORMATION { .Version int32 .HorizontalResolution int32 .VerticalResolution int32 .PixelFormat int32 .RedMask int32 .GreenMask int32 .BlueMask int32 .Reserved int32 .PixelsPerScanline int32 } struct EFI_GRAPHICS_OUTPUT_MODE_INFORMATION ;---macros to make life easier--- ;call it early, after entry point is the best macro InitializeLib { clc or rdx, rdx jz .badout cmp dword [rdx], 20494249h je @f .badout: xor rcx, rcx xor rdx, rdx stc @@: mov [efi_handler], rcx ; ImageHandle mov [efi_ptr], rdx ; pointer to SystemTable } ;********************************************************************* ;* Library functions * ;********************************************************************* section '.data' data readable writeable efi_handler: dq 0 efi_ptr: dq 0 uefi_rsptmp: dq 0