Who made Z80?
Who made Z80?
Federico Faggin
The Z80 is an 8-bit microprocessor introduced by Zilog as the startup company’s first product. The Z80 was conceived by Federico Faggin in late 1974 and developed by him and his 11 employees starting in early 1975.
How many locations can the Z80 CPU address?
8-bit Data Registers The Z80 processor contains 14 general purpose registers which can be used for holding and manipulating data bytes. Each of these registers is 8-bits wide and they are named A, B, C, D, E, H, L, A’, B’, C’, D’, E’, H’, L’.
How many times can a loop be iterated in Z80 assembly?
In Z80 assembly, loops can be created with the b register and djnz instruction. Here, we iterate 8 times to draw an 8×8 pixel block. jr main ;loop forever!
Is there a Z80 assembly code syntax highlighter available?
There is a z80 assembly code syntax highlighter available here. Pasmo is a Z80 assembler. Fuse is an easy to use ZX Spectrum emulator. Write the code below and save it as prog.asm. This program will simply loop forever. The address 32768 at the beginning indicates where the program will be loaded in RAM. jr main ;loop forever!
Is there an IDE for Z80 assembly code?
Visual Studio Code can be used as an IDE. There is a z80 assembly code syntax highlighter available here. Pasmo is a Z80 assembler. Fuse is an easy to use ZX Spectrum emulator. Write the code below and save it as prog.asm.
Where is the screen memory located in a Z80 assembly?
The screen memory is located at position 16834. Each byte corresponds to 8 horizontal pixels, on or off (colors are defined at another address). Here, we use the de register to hold the screen address and write into memory. jr main ;loop forever! In Z80 assembly, loops can be created with the b register and djnz instruction.
