EarlyVideoPei

EarlyVideoPei is a PEI-phase video initialization module recovered from the
AMI UEFI BIOS image. The source set is decompiled and intentionally keeps IDA
types, calling-convention annotations, register comments, and raw hardware
access expressions visible for analysis.

Module Facts

Layout

• EarlyVideoPei.c is the compact aggregate decompilation for the first
  recovered functions.
• *.c split files hold one function per file and are the easiest place to
  review individual routines.
• EarlyVideoPei_function_list.csv records address, size, basic-block, caller,
  callee, string, and constant counts.
• EarlyVideoPei.md groups the recovered functions by subsystem for browsing.
• EarlyVideoPei.h contains the minimal module header used by this source set.

Functional Areas

• Entry and PEI service helpers: ModuleEntryPoint, PeiGetPeiServices,
  PeiLocatePpi, PeiAllocatePool, PeiGetBootMode, PeiAssert.
• Memory helpers: InternalCopyMem, CopyMem, InternalSetMem, SetMem,
  SetMem16, SetMem32, ZeroMem, InitMultiple.
• PCI and MMIO helpers: PciCfg*, PciReg*, MmioCfgRead, MmioCfgWrite,
  MicroSecondDelay.
• VGA register programming: VgaSeq*, VgaCrtc*, VgaGc*, VgaAttr*,
  VgaDisplay*, VgaMode*.
• Image and logo handling: ImageDecode*, Bitmap*, ImageRender*,
  ImageXorDecodeType*, LogoDecode, LogoRender*, LogoDisplayMain.
• Debug display support: DebugVgaPrint, DebugAssertPrint*,
  DebugPrintAll, DebugPrintEntry, DebugHexPrint, DebugVgaPrintStr.

Reading Notes

This is analysis-oriented source, not normalized firmware source. Keep the
generated names and raw expressions intact unless there is independent evidence
for a semantic rename. Prefer presentation-only cleanup: spacing, local
comments, function grouping, and cross-reference notes.