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Questions tagged [8051]

8051 aka MCS-51 is the 8-bit microcontroller architecture created by Intel in 1980. The original chips were discontinued in 1996 but it still remains one of the most ubiquitous embedded architectures for simple control tasks.

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Radare2 8051 code bank switching

Some of 8051 chips use bank switching to extend accessible code memory. Good example is Silabs C8051F12x. Another example is here. Code area in range 0x0000..0x7ffff is common always accessible code ...
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Radare2 switch table walk for 8051

For 8051 target exist famous no-return function with body of d083d082f8e4937012740193700da3a393f8740193f5828883e4737402936860efa3a3a380df Function parse jump table following immediately after call ...