ref: 83f8d591689cae964ba58fbcf172f6a4fa7003ed
dir: /sys/src/boot/efi/pe32.s/
TEXT mzhdr(SB), 1, $0
BYTE $'M'; BYTE $'Z'
WORD $0 /* e_cblp UNUSED */
WORD $0 /* e_cp UNUSED */
WORD $0 /* e_crlc UNUSED */
WORD $0 /* e_cparhdr UNUSED */
WORD $0 /* e_minalloc UNUSED */
WORD $0 /* e_maxalloc UNUSED */
WORD $0 /* e_ss UNUSED */
WORD $0 /* e_sp UNUSED */
WORD $0 /* e_csum UNUSED */
WORD $0 /* e_ip UNUSED */
WORD $0 /* e_cs UNUSED */
WORD $0 /* e_lsarlc UNUSED */
WORD $0 /* e_ovno UNUSED */
WORD $0 /* e_res UNUSED */
WORD $0
WORD $0
WORD $0
WORD $0
WORD $0 /* e_oemid UNUSED */
WORD $0 /* e_res2 UNUSED */
WORD $0
WORD $0
WORD $0
WORD $0
WORD $0
WORD $0
WORD $0
WORD $0
WORD $0
LONG $pehdr-IMAGEBASE(SB) /* offset to pe header */
TEXT pehdr(SB), 1, $0
BYTE $'P'; BYTE $'E'; BYTE $0; BYTE $0
WORD $0x014C /* Machine (Intel 386) */
WORD $1 /* NumberOfSections */
LONG $0 /* TimeDateStamp UNUSED */
LONG $0 /* PointerToSymbolTable UNUSED */
LONG $0 /* NumberOfSymbols UNUSED */
WORD $0xE0 /* SizeOfOptionalHeader */
WORD $2103 /* Characteristics (no relocations, executable, 32 bit) */
WORD $0x10B /* Magic (PE32) */
BYTE $9 /* MajorLinkerVersion UNUSED */
BYTE $0 /* MinorLinkerVersion UNUSED */
LONG $0 /* SizeOfCode UNUSED */
LONG $0 /* SizeOfInitializedData UNUSED */
LONG $0 /* SizeOfUninitializedData UNUSED */
LONG $start-IMAGEBASE(SB)/* AddressOfEntryPoint */
LONG $0 /* BaseOfCode UNUSED */
LONG $0 /* BaseOfData UNUSED */
LONG $IMAGEBASE /* ImageBase */
LONG $0x200 /* SectionAlignment */
LONG $0x200 /* FileAlignment */
WORD $4 /* MajorOperatingSystemVersion UNUSED */
WORD $0 /* MinorOperatingSystemVersion UNUSED */
WORD $0 /* MajorImageVersion UNUSED */
WORD $0 /* MinorImageVersion UNUSED */
WORD $4 /* MajorSubsystemVersion */
WORD $0 /* MinorSubsystemVersion UNUSED */
LONG $0 /* Win32VersionValue UNUSED */
LONG $end-IMAGEBASE(SB) /* SizeOfImage */
LONG $start-IMAGEBASE(SB)/* SizeOfHeaders */
LONG $0 /* CheckSum UNUSED */
WORD $10 /* Subsystem (10 = efi application) */
WORD $0 /* DllCharacteristics UNUSED */
LONG $0 /* SizeOfStackReserve UNUSED */
LONG $0 /* SizeOfStackCommit UNUSED */
LONG $0 /* SizeOfHeapReserve UNUSED */
LONG $0 /* SizeOfHeapCommit UNUSED */
LONG $0 /* LoaderFlags UNUSED */
LONG $16 /* NumberOfRvaAndSizes UNUSED */
LONG $0; LONG $0
LONG $0; LONG $0
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
LONG $0; LONG $0 /* RVA */
BYTE $'.'; BYTE $'t'; BYTE $'e'; BYTE $'x'
BYTE $'t'; BYTE $0; BYTE $0; BYTE $0
LONG $edata-(IMAGEBASE+0x200)(SB) /* VirtualSize */
LONG $start-IMAGEBASE(SB) /* VirtualAddress */
LONG $edata-(IMAGEBASE+0x200)(SB) /* SizeOfData */
LONG $start-IMAGEBASE(SB) /* PointerToRawData */
LONG $0 /* PointerToRelocations UNUSED */
LONG $0 /* PointerToLinenumbers UNUSED */
WORD $0 /* NumberOfRelocations UNUSED */
WORD $0 /* NumberOfLinenumbers UNUSED */
LONG $0x86000020 /* Characteristics (code, execute, read, write) */
/* padding to get start(SB) at IMAGEBASE+0x200 */
LONG $0; LONG $0; LONG $0; LONG $0;
LONG $0; LONG $0; LONG $0; LONG $0;
LONG $0; LONG $0; LONG $0; LONG $0;
LONG $0; LONG $0; LONG $0; LONG $0;
LONG $0; LONG $0; LONG $0; LONG $0;
LONG $0; LONG $0; LONG $0; LONG $0;
LONG $0; LONG $0; LONG $0; LONG $0;
LONG $0; LONG $0; LONG $0; LONG $0;
LONG $0; LONG $0; LONG $0; LONG $0;
LONG $0; LONG $0; LONG $0; LONG $0;
TEXT start(SB), 1, $0
CALL reloc(SP)
TEXT reloc(SB), 1, $0
MOVL 0(SP), SI
SUBL $reloc-IMAGEBASE(SB), SI
MOVL $IMAGEBASE, DI
MOVL $edata-IMAGEBASE(SB), CX
CLD
REP; MOVSB
MOVL $efimain(SB), DI
MOVL DI, (SP)
RET
TEXT jump(SB), $0
CLI
MOVL 4(SP), AX
JMP *AX
TEXT eficall(SB), 1, $0
MOVL SP, SI
MOVL SP, DI
MOVL $(4*16), CX
SUBL CX, DI
ANDL $~15ULL, DI
SUBL $8, DI
MOVL 4(SI), AX
LEAL 8(DI), SP
CLD
REP; MOVSB
SUBL $(4*16), SI
CALL AX
MOVL SI, SP
RET