The custom instruction set was implemented by grouping the two 64-bit integer ALUs.Įach vector unit also has upper execution unit containing 4 FMAC and lower execution unit containing FDIV, integer ALU, load-store unit, branch logic, 16 16-bit integer registers and 32 128-bit floating point registers.
#Playstation 2 bios for usa software#
However their use is unsupported and compatibility is not guaranteed.Ĭompatibility with USB and IEEE 1394 devices is dependent on the software supporting the device.įor example, the PS2 BIOS will not boot an ISO image from a USB flash drive or operate a USB printer, as the machines operating system does not include this functionality.īy contrast, Gran Turismo 4 and Tourist Trophy are programmed to save screenshots to a USB mass storage device and print images on certain USB printers.Ī PlayStation 2 HDD can be installed via the expansion bay in the back of the console, and was required to play certain games, notably the popular Final Fantasy XI.ĬPU is a superscalar, in-order 2-issue design with 6-stage long integer pipelines, 32 32-bit GPR registers, 32 128-bit SIMD linear scalar registers, two 64-bit integer ALUs, 128-bit load-store unit (LSU) and a branch execution unit (BXU). There are a variety of non-Sony manufactured memory cards available for the PlayStation 2, allowing for a larger memory capacity than the standard 8 MB.
Memory cards without encryption can be used to store PlayStation game saves, but PlayStation games would be unable to read from or write to the card such a card could only be used as a backup. This requirement prevented the production of memory cards by third parties who did not purchase a MagicGate license. Like its predecessor, the DualShock 2 controller features force feedback technology. The PS2 also supports limited functionality with the original PlayStation memory cards and controllers. This is accomplished through the inclusion of the original PlayStations CPU which also serves as the PS2s IO processor. In addition, the console can play audio CDs and DVD movies, and is backwards compatible with original PlayStation games.
Other components, such as the systems DVD-ROM optical drive and DualShock 2 controller, provide the software and user control input.
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