On 2014-11-05 02:30, Dennis Lee Bieber wrote:
On Tue, 4 Nov 2014 13:45:32 -0300, françai s <romaper...@gmail.com>
declaimed the following:
I intend to write in lowest level of computer programming as a hobby.
It is true that is impossible write in binary code, the lowest level
of programming that you can write is in hex code?
What is the lowest level of programming computers that you can write ?
Is binary code?
Is hex code?
Is another machine code? Honestly do not know if it is true that there
is another machine code beyond the binary and hex code.
Is Assembly?
Meaningless question -- it all relies upon HOW THE CODE GETS INTO
MEMORY.
NOT TO MENTION: "binary" and "hex" are just notations. They both
represent a set of bits, but hex uses one character to encode 4 bits while
binary needs one character for each bit.
0xA5 is the SAME as '101001010'b (note: the notation differs with
whatever system you use to enter them -- 0xA5 in C is 16#A5# in Ada, and
'A5'h in some obsolete systems..
I've also seen $A3 and 0A3h (it needs to start with a digit in the
range 0..9).
If you have an old system with front-panel toggle switches, you set the
switches for binary values, and then push the "enter" switch.
"machine code" typically implies an instruction set specific to that
machine... ALL computers operate in BINARY logic (a bit only holds 0 or 1).
How you get those bits into the computer is irrelevant.
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