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Messages - yrinfish
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91
« on: May 23, 2011, 04:05:15 pm »
I just have to say: I'm happy with people who try to stand in the middle here and try to keep things peaceful, atheist or theist (is it called like that?), if you're nt flaming but say that everyone should be respectful to the others, then I really respect you.
(bwaagh I'm bad at compliments... that is really not nice.)
92
« on: May 13, 2011, 05:23:34 am »
Thats true, what opcodes should I add in the new space?
maybe sub, neg, shift...
How many registers should I use? 4 is useful, but when I make the ip non-accesible with assembly, 2 could be enough.
93
« on: May 13, 2011, 03:58:52 am »
No stack? er, ok 4 more opcode spaces... how do I call functions then?
and is princeton the same as von Neumann, because that is the one I want, I LOOOOOVEEE SMC.
I will have a look at a hexadecimal z80 chart for ideas.
94
« on: May 12, 2011, 03:29:26 pm »
I like that idea, but not #Define but #def because that fits better, and maybe other symbols that are shorter...
95
« on: May 12, 2011, 03:02:40 pm »
er, not add 1 is the same as neg? and I do not really have much space left (er, ok, no space left)
How many registers should I use?
remember, this is more than slightly linked to creating the whole thing using logic gates.
96
« on: May 12, 2011, 03:00:08 pm »
Er, do you really think that that is better?
Logisim has a cleaner design, is portable, and I do really prefer the symbols over those MMLogic has.
I do not see things that I miss in Logisim... (OK, that file stuff may be useful but I do not miss it)
MMLogic was last updated 7 years ago...
But please back to my question
97
« on: May 12, 2011, 01:21:30 pm »
Er, are you guys going to hate me if I ask a question that is most likely connected to a project that is too big for me?
How the **** do I design an 4 bit instruction set?
This is my latest one:
nop jz jnz jmp
push pop call ret
not lit ld sto
add xor or and
lit is a inmediate value to a register.
ld and sto are for RAM
Do you have any examples? Do I miss something?
98
« on: April 28, 2011, 04:31:13 pm »
No it isn't, it is smaller screens == better programs
99
« on: April 28, 2011, 04:15:11 pm »
But how does it (memkit) exactly work? Shifting the rest of the bytes? Or does it buy a new RAM-chip?
100
« on: April 26, 2011, 04:16:06 pm »
ok, then ill connect the J and the K and put an inverter between them...
That's actually just as useful!!
101
« on: April 26, 2011, 01:58:25 pm »
Is there a way to use that rising/falling edge with logic gates?
I'm trying to do it without any built-in things, only logic gates...
102
« on: April 26, 2011, 01:38:44 pm »
the output is predictable, but if it 'crashes' the simulation, it isn't useful at all...
Does it work in RL this way? And how can Logisim have it built in while it doesn't work?
103
« on: April 26, 2011, 01:23:45 pm »
I know, but it shouldnt do that, should it?
104
« on: April 26, 2011, 01:10:56 pm »
The jk flipflop doesnt work in logisim, all inputs are allowed to be 1 at once, but it stops with the error 'oscillation apparent'
105
« on: April 23, 2011, 12:40:07 pm »
Awesome!!
The unicorns like it!
There is a game online that works almost the same, but the player can shoot an arrow to destroy them, that would be fun!
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