waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahhhhhhh

I have once again massively compressed my decoder. this is so fucking epic.

does anyone have info on going through TSA without real id? i have to do it in 2 days. TSA officially recognizes this procedure and says so on their site. i've spoken to people who have done this after may this year, and got through. just wondering if there are tips on what to bring and what to say

it's register time

i realized that the ROM would grow rapidly as control lines and instructions were added, so i instead opted to have separate ROMs for domain-specific lines, like ALU logic. it resulted in massive EPS and space savings

time to control some control lines

i just 36RPM'd wife in her office chair for 21 revolutions

well im happy i discovered this

im starting to wonder if im insane. i have the ret operation set the returning sp to the outer bp, so not popping is okay? i just don't have a way to do pointer arithmetic inline. it has to be done with so many instructions lol. in normal-people assembly i'm pretty sure it's like "mov [ebp-4], 3"

i'm working on a calling convention. i think it's really cool that customasm lets me statically determine the return address (which MUST be pushed first) by checking the size of the instructions for pushing the arguments. the alternative would be using a dedicated register, which sucks.

i actually have no idea how ptr[] and mem[] is used in normal-people assembly. but i made the syntax more explicit to make it easier to learn and remember my own ISA as i look at it

Here's my adder as an SVG (left), and a whole CPU someone else made (right). I made the graph with graphviz and VCBTool. It's pretty cool.

the syntax is getting more interesting. i'm using pattern-matched "types" with subruledef for the shit like ptr[x] and mem[x]. i have no idea if this is what it's supposed to look like for nasm/gas/etc. this is fun though. on the bottom are "global variables" i guess you could say, but stack better.

decided to use online blueprints, as reinventing the wheel is not my intention here. i want to push boundaries. (i did make the adder on the bottom-left). what you see here though is far from pushing anything at all. but i am learning.

people keep telling me i should record audiobooks. i'm thinking about it

almond

here was the unfinished 8-bit "cpu" i designed in the past. It only supported two instructions. load into register, and movl. but it runs the program just fine (unless the timing is too fast)

i made some counters using (stateful) latch inks. my old 2-stride design was pretty ugly (2nd image)

here we go again with designing CPUs

the ride never ends

I made a full adder. Working on porting my CPU design to VHDL :3

454351245685423

Made some more :3

I haven't drawn in yeaars, but it turns out I still remember how to draw feet lol (Some of the poses are not mine)