A
Но ПП осциллографов и прочих приборов - это вообще другой уровень
Не заметил я в прочих приборах другой уровень
Size: a a a
2021 March 18
A
И в осле ничего фантастического нет
2021 March 19
Х
Aleksandr Zharov
И в осле ничего фантастического нет
Ага, а в таком?
Х
F
О да, люблю такие видосики
F
Из категории «техпорно»
KA
Мб она получится в 4 слоя :D
Бюджетные материнки для пк как раз в 4-6 слоёв и делают и не спрашивайте как они там разводят ddr4)), но оно как-то даже работает
U
Бюджетные материнки для пк как раз в 4-6 слоёв и делают и не спрашивайте как они там разводят ddr4)), но оно как-то даже работает
это какие-то сверхультрабюджетные на чипсете вроде A320?
AK
someone familiar with assembly code? I got an old Z80 System here without display. I want to test NOP cycle and need a small loop program. Will this do the job?
; System memory map:There is a 2764 EPROM and 6 U224 4kbit SRAM modules.
; 0x0000 - 0x7FFF = ROM 8K
; 0x8000 - 0x0FFF = RAM 8k
org 0x00 ; Reset vector
reset: jp start ; Jump to start of main code
org 0x0066 ; NMI vector
; forg 0x0066 ; NMI vector
nmi: jp start ; Jump to start of main code
;forg 0x0100 ; put this out of the way
org 0x0100 ; put this out of the way
start: ld a, 0x33 ; load 0x33 into the accumulator ('3' in ASCII)
ld (0x8010), a ; load value of accumulator into memory address 0x8010 (This is in the RAM space)
ld a, 0x39 ; load 0x39 into the accumulator ('9' in ASCII)
ld (0x8011), a ; load value of accumulator into memory address 0x8011 (This is in the RAM space)
ld a, 0x4B ; load 0x4B into the accumulator ('K' in ASCII)
ld (0x8012), a ; load value of accumulator into memory address 0x4012 (This is in the RAM space)
ld a, (0x8010) ; Get value from 0x8010 into the accumulator (Should be 0x33)
ld a, (0x8011) ; Get value from 0x8011 into the accumulator (Should be 0x39)
ld a, (0x8012) ; Get value from 0x8012 into the accumulator (Should be 0x4B)
loop: jp loop ; loop forever
i didnt see any NOP`s and tests here. But program will work :)
RC
Может кто знает как в easyeda сделать полигон внутри полигона?
S
i didnt see any NOP`s and tests here. But program will work :)
Z80 will do NOP when D0-D7 is grounded with 100-470Ohm resistors. The original 2 mask roms are burned for what reason however. So i just need some small code to keep the system running. Maybe the RAM or the Z80 is faulty too because my NOP test runs only one single cycle and stops. Doesn't matter what i'm trying. It's an cold war eara chess computer someone gave me to repair.
S
i didnt see any NOP`s and tests here. But program will work :)
AK
your z80 stops after any NOP?
S
after one NOP cycle yes. this is how CPU stops after the cycle
AK
im too old and lazy to understand this picture :)
AK
i try to understand - z80 stop for some time after NOP and then countinue to execute commands?
AK
or it freezes after NOP?
S
it freezes
AK
and what you do after this? reset cpu?
S
it counts each adress line, and with each adress line the clock speed should be the half from the one before