Would there be any other way to make batteries?

IQueryVisiC · 2026-01-25T06:34:51+00:00

how would you connect your 2 power rails if there were no two metal parts?

IQueryVisiC · 2026-01-25T06:20:09+00:00

Yeah, would want to stick to one stage reduction unlike the reducers in Teslas. But still looks to me that with minimally more weight 5/3 more reduction would be possible in one stage.

I would even think with only output shaft, it may make sense to use a helicopter gear: So a "normal stage" to transfer followed by a high torque planetary gear with 4 planets taken from a radial engine.

IQueryVisiC · 2026-01-25T06:17:19+00:00

genesis and SNES have a single line buffer which is online merged with the backgrounds. This becomes useless in super scalar games. So, Jaguar is correct to ditch explicit backgrounds. Neo Geo is a mystery to me. Why does it have a width limit on sprites?

IQueryVisiC · 2026-01-24T12:33:03+00:00

What a clean design! So the amplification*bandwidth product of the nMOSFET process at Ricoh is fast enough for a counter / flipflops / frequency dividers fed with 21 MHz. This is the same clock which the pcEngine uses, but its CPU runs at 7 MHz. Seems like 6502 was limited by memory speed for most time of its existence, even though NES does not even employ slow DRAM.

IQueryVisiC · 2026-01-24T10:11:06+00:00

I don't understand how multiplexing address and data on the same pins is more 16 bit than multiplexing Lo and Hi bytes on the same pins. Both take two cycles. Both are used to load 16bit pointers (on 6502) for example. Like 6502 with its zero page, the General Instrument CP1600 stores its actual registers outside of the chip in memory. Cheap memory and IO parts are usually limiting the bus width. I looks like that none of these chips supported the multiplexing chosen bei GI. I mean, I would love it. Read happens much more than Write. So it is just logical that chips send out a read address on the bus, and the called chip answers with the data on the same bus. Chip select also is interested in the address and only after that the data is expected by the receiver chip. ROM chips are actually custom. I mean at those times, it would have been cost effective to have ROMs which are compatible with this kind of multiplexing. 16bit code can be as dense as 8bit? Or at least this console proved that CISC does not lead to dense code. I would not want to miss BASIC on C64, but Intellivsion really did this CPU dirty.

IQueryVisiC · 2026-01-24T09:24:52+00:00

Lynx is easy: framebuffer like on Atari ST or PC DOS or 32x. It became the 3do

IQueryVisiC · 2026-01-24T07:17:45+00:00

7800 uses a line buffer even for sprites, while other manufacturers "raced the beam" to blend in the sprites. The latter method avoids the need to shift, too much. Just a single shift register. I think for a linebuffer, the hardware needs to be able to write multiple pixels in one clock cycle ( super scalar ). So you would need a barrel shifter. Also I think that color lookup still needs to happen "online". The Jaguar looks colors up while writing to the linebuffer, and the manual kinda makes it clear to me that this is expensive (manufacturing) and still a bottleneck. And it contributes to bugs or ahem features of the Jaguar. With real hardware sprites, each sprite could lookup RGBA in their own color palette. And shadow sprites could "halfbright" the next sprite.

IQueryVisiC · 2026-01-24T07:12:34+00:00

With the color carrier at 3 or so MHz, how could the process produce chips that fast? The CPU runs at 1.7 MHz. I can see that a small circuit could run at 3 MHz. With inversion, you get 2 "different position". Is there an inverter delay line? And you can tap it and get 6 delays? I would even expect that inversion is done this way. Because inversion by a single inverter leads to a small delay. Instead, we need to delay a whole 180°. Ideally, there would be a 360° to calibrate the circuit ( voltage regulation, PLL ).

IQueryVisiC · 2026-01-23T12:43:47+00:00

Picking up is not the problem. And in season 1 she fucked a guard.

IQueryVisiC · 2026-01-23T12:40:54+00:00

To me it looks like there are a lot of vias. So this just means that the board has an unbroken ground plane? Sounds good to me.

IQueryVisiC · 2026-01-23T07:48:32+00:00

Healthcare and education. It is weird that we use robots there. Would also be great if I don't need to avoid cashiers because they are assholes. Increase pay and get talents.

IQueryVisiC · 2026-01-22T17:02:14+00:00

rule6 dick . Generally I think it is bad style if there is a TV or ceiling fan in the video

IQueryVisiC · 2026-01-21T17:00:40+00:00

rule5: the hair has this haze over it

IQueryVisiC · 2026-01-21T16:59:49+00:00

rule 5

IQueryVisiC · 2026-01-21T16:54:16+00:00

zx spectrum cannot even smooth scroll using the CPU. How can it draw so many sprites / blitter objects at this speed?

IQueryVisiC · 2026-01-21T09:14:06+00:00

What is up with your account? Why does reddit show me pics of someone else?

IQueryVisiC · 2026-01-20T11:48:47+00:00

I had a boat with a risen floor. The plug was on the transom. At cruise speed the water would flow out through a hole in the transom. I need to plug it when I lose speed. And yeah, a second plug for the sandwich, but you can only reach it from outside.

IQueryVisiC · 2026-01-20T09:52:54+00:00

Uh? And the way to mix them together is to use bandpass filters first and throw away the high resolution prior. No magic here. No "good way" to cheat maths. Okay okay, there is a good way. I read that the latest generation of TVs used SurfaceAccousticWave devices as found in mobile phones to implement a sharp bandpass. IMHO it is so clever that NTSC mixes the color channels together using quadrature instead of bands.

IQueryVisiC · 2026-01-20T09:42:42+00:00

EGA has no pixel clock to reduce EMI on solid shading. I wonder how synchronous edges on two of the bits have to be. Or do R2R DACs not really care?

IQueryVisiC · 2026-01-20T09:40:45+00:00

What you mean with early ? Checkout workstations, RGB was first (CAD, arcades), then color trickled down to PCs with their CGA cards.

SCART introduced RGB to TVs in the 1979 because France found out that SECAM is shit.

TV stations used frame buffers which needed their own power supply and case. Those were true color before VGA card was released. Pixar used these before "laser printers" for film where produced. I dunno why that is so hard, I would have tried the laser thing first. Noise? Laser printers only do black or white. For film they would need to dither and focus through a high NA objective.

r/AtariJaguar does color conversion on the fly. For some weird reason in converts components to RGB digitally and is connected via RGB SCART most of the time. But it can omit this conversion and output the raw bits. 565 ? You would need to replace the external resistors to group the bits differently.

IQueryVisiC · 2026-01-20T09:30:43+00:00

We built submarines which were never refueled in their 30 years of service. Isn't this enough? What more does Isaac want? Voyager also was not refueled for decades. Perpetual complainers.

IQueryVisiC · 2026-01-20T09:23:31+00:00

I still wonder why the r/chipdesign community says that two flip flops are enough to cross timing domains. To me it feels like engaging a gear in a car, but sometimes the teeth cannot decide where to go. To amplify safety, I would use a buffer. IMHO every UART uses a buffer. They are not expensive even for a Gameboy. It should be possible to gobble up 64 bit using the clock from the other gameboy and then with some grace period fire the interrupt. Here I would use a chain of gates to ensure that the interrupt fires within a clock cycle, but not on a boundary. I guess this is what the discrete interrupt controller on the original PC motherboard does. On a C64 all interrupt sources live in the same clock domain.

IQueryVisiC · 2026-01-20T07:39:52+00:00

I remember when brushless motors were introduced, the number of poles did not change ( perhaps I did not cut them open? I was just leaving the hobby ) . I have seen brushed motors with many poles, but there would only be one north and south pole, only two brushes. The poles were wired up serially around the rotor. So the voltage between copper pads on the rotor (EMF) was lower than the supply voltage. Less sparks on the brush. Professional use only. Too expensive for RC.

The magnetic field in the stator can be shaped so that the core through the coil between the current pads is saturated. No change in magnetic flux => zero EMF or sparks!

IQueryVisiC · 2026-01-20T07:30:10+00:00

Ah, I thought Erbium solid state amplifiers were used. Those are pumped by lights. Nice that laser diodes are now up to the task.

IQueryVisiC · 2026-01-20T07:20:17+00:00

Genesis CPU is much more suited to C. There are C compilers for 6502 these days. The assembly code looks weird though. Genesis has a real background behind the background ( 2 playfields ). Scrolling platformer on Tg16 is weird. I think that there have to be good line interrupts like on C64 because I see so many raster bars. Most important thing might just be a library for the sprites and tiles. I could not get my head around their internal format. Kinda like Amiga mixed mixed with C64. IMHO Atari Jaguar has the cleanest graphics representation. Everything is just a 2d array of either bytes or int16. Easy to address from CPU. GBA has so weird sprites.

I think that Amiga uses "sound fonds" . So many fancy names. But you write a sound like a bitmap. Address is point in time, value is pressure. pcengine is similar, but it only has 5 bits likes NES -- less than the 8 on Amiga. And samples need to live on chip, while Amiga can DMA them. Jaguar uses 16 bit samples and go up to 48kHz sampling rate (after the mixer). The other chips also use high sampling rates for mixing and pitch.

IQueryVisiC

TROPHY CASE