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(Redirected from 16 bit)
:''"16-bit" redirects here. For the color encoding, see Highcolor.''
:''For the era of computer gaming commonly referred to as "16-bit", see History of video game consoles (fourth generation).
Prominent '16-bit' processors include the PDP-11, Intel 8086, Motorola 68000, Intel 80286 and the WDC 65C816. The Motorola 68000 was 16-bit in that its data buses were 16 bits long; however, it was 32-bit in that the general purpose registers were 32 bits long and most arithmetic instructions supported 32-bit arithmetic, and 24-bit in that the address bus was 24 bits long.
A 16-bit integer can store 216 (or 65536) unique values. In an unsigned representation, these values are the integers between 0 (number) and 65535; using two's complement, possible values range from −32768 to 32767. Hence, a processor with 16-bit memory addresses can directly access 64 KiB of byte-addressable memory.
16-bit processors have been almost entirely supplanted in the personal computer industry, but remain in use in a wide variety of embedded applications. For example the 16-bit XAP processor is used in many ASICs.
The 16-bit processor of the Sega Mega Drive/Genesis was a highly advertised feature of the video game system. Due to the saturation of this advertising, the 1988-1995 era of video game consoles is often called "the 16-bit era".
A 16-bit File format is a binary File format for which each elementary information is defined on 16 bits (or 2 Bytes). An example of such a format is the Windows Metafile Format.
:''"16-bit" redirects here. For the color encoding, see Highcolor.''
:''For the era of computer gaming commonly referred to as "16-bit", see History of video game consoles (fourth generation).
| Contents |
| 16-bit architecture |
| 16-bit File format |
16-bit architecture
Prominent '16-bit' processors include the PDP-11, Intel 8086, Motorola 68000, Intel 80286 and the WDC 65C816. The Motorola 68000 was 16-bit in that its data buses were 16 bits long; however, it was 32-bit in that the general purpose registers were 32 bits long and most arithmetic instructions supported 32-bit arithmetic, and 24-bit in that the address bus was 24 bits long.
A 16-bit integer can store 216 (or 65536) unique values. In an unsigned representation, these values are the integers between 0 (number) and 65535; using two's complement, possible values range from −32768 to 32767. Hence, a processor with 16-bit memory addresses can directly access 64 KiB of byte-addressable memory.
16-bit processors have been almost entirely supplanted in the personal computer industry, but remain in use in a wide variety of embedded applications. For example the 16-bit XAP processor is used in many ASICs.
The 16-bit processor of the Sega Mega Drive/Genesis was a highly advertised feature of the video game system. Due to the saturation of this advertising, the 1988-1995 era of video game consoles is often called "the 16-bit era".
16-bit File format
A 16-bit File format is a binary File format for which each elementary information is defined on 16 bits (or 2 Bytes). An example of such a format is the Windows Metafile Format.
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