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The C64S tape adapter lets you connect your tape deck to a PC parallel port. [22] The Cassadapt tape adapter allows to convert tape programs (T64 and PRG) from a PC to either the Commodore 64 or a C2N tape deck. [23] Disk connector adapters. The 1541-III is a PIC microcontroller controlling a MMC/SD card with .D64 files. It does however NOT ...
In this example, we shall encode 14 bits of message with a 3-bit CRC, with a polynomial x 3 + x + 1. The polynomial is written in binary as the coefficients; a 3rd-degree polynomial has 4 coefficients (1x 3 + 0x 2 + 1x + 1). In this case, the coefficients are 1, 0, 1 and 1.
Bit 15 in the Channel Status subchannel is the "L" bit indicating whether the source signal is an original medium (such as an audio CD [6] or a prerecorded DCC tape) or "not determined". For audio CDs and laser optical media, 0 means original and 1 means "not determined"; for other digital sources the values of this bit are reversed.
The Commodore 64x is a replica PC based on the original Commodore 64, powered by x86 Intel processors ranging from the Intel Atom to the Intel Core i7. It was sold by Commodore USA starting in April 2011.
This translates into about 5 megabytes to 140 megabytes per standard length (2,400 ft, 730 m) reel of tape. Effective density also increased as the interblock gap (inter-record gap) decreased from a nominal 3 ⁄ 4 inch (19 mm) on 7-track tape reel to a nominal 0.30 inches (7.6 mm) on a 6250 bpi [clarification needed] 9-track tape reel. [12]
The TX-2 Tape System is the direct ancestor of LINCtape, including the use of two redundant sets of five tracks and a direct drive tape transport, but it uses a physically incompatible tape format (½-inch tape on 10-inch reels, where LINC tape and DECtape used ¾-inch tape on 4-inch reels). [6] [7]
The minimum strictly positive (subnormal) value is 2 −262378 ≈ 10 −78984 and has a precision of only one bit. The minimum positive normal value is 2 −262142 ≈ 2.4824 × 10 −78913. The maximum representable value is 2 262144 − 2 261907 ≈ 1.6113 × 10 78913.
As an example of implementing polynomial division in hardware, suppose that we are trying to compute an 8-bit CRC of an 8-bit message made of the ASCII character "W", which is binary 01010111 2, decimal 87 10, or hexadecimal 57 16.