However, the string for SCPH-1002 is at 0x423C0 instead. Just a simple version tag near the end of the file in most revisions at offset 0x7FF32. $Id: intr.c,v 1.21 9 10:34:06 suzu Exp $ : Copyright (C) by 1994 Sony Computer Entertainment Inc. These are possibly earlier versions of the libraries used in most games. GPU timeout:QUE=(%2d,%2d),CODE=(%d,%d,%08X)Īt offset 0圆5E48 appears to be more libraries and debug messages, this time with differing versions. SetGraphDebug:level:%d,type:%d reverse:%d These are strings from some kind of standard library to be used for any PlayStation application.Įrror: Can't push matrix,stack(max 20) is full! Offset 0圆1160 begins a long strand of textual error messages, debug messages, and file versions. SJIS is Shift-JIS, a Japanese character encoding. Offset 0圆02FC contains an additional error about a 'bad sjis code'. Hankaku means 'half-width' in the Japanese katakana system of writing. Location 0圆01E4 contains an error message about a 'bad hankaku code'. It refers to a 'dual cross key' gamepad, which may be an as-yet unseen prototype controller containing two D-pads. Licensed by Sony Computer Entertainment Inc.Īt offset 0x16D34 appears to be debug output for the control pad driver. It is unclear whether any development kits made use of the PIO Loader or whether this was an early development leftover. Following that appears to be a primitive shell of some sort. At offset 0圎288 is a string which all PIO equipment must return to the console in order to have code execution passed to the device. The PIO (Parallel Input/Output) feature was intended to be used for debugging, but was exploited to boot unsigned code on such devices such as the Action Replay. It contains information related to the PlayStation kernel and boot process as the console loads.Ĭopyright 1993,1994 (C) Sony Computer Entertainment Inc.

Normally unseen when using a real PlayStation, the following text is generated for console output when using the PCSX emulator, and possibly a devkit as well.

Hidden in the BIOS at 0x129 is a small string

Unless noted otherwise, all addresses noted below are for the SCPH-1001 revision. Variables beginning with a '%' are format variables. It appears to have been compiled to MIPS using the C language. The BIOS contains a heaping of what appears to be debug console output, either used during the console's development, or used for game development on the console.

2.2 System Menu Differences and Similarities.

Playstation bios scph 5501