New answers tagged microprocessor
3
Datasheet for the Intel 8008 CPU mentions that the Carry (C) flag is affected with the logic operations (AND, OR, XOR), but it does not make any sense. I believe Carry will be zeroed, but I have no proof of this conclusion.
First, the manual does not say anything special about logic operations but states:
The result of the ALU instructions affect all of the ...
6
Intel 8008 CPU has an internal stack, implemented as an 8 x 16-bit scratchpad.
No, it's entries are 'only' 14 bit long, as all addressing on the 8008 supports only 14 bit (*1).
How does it work exactly? Is there any "invisible 3-bit stack pointer"?
Yes. In reality it's not a stack pointer, but selects the active PC.
A three-bit address pointer ...
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