3 ms·It was only useful when stack wasn’t involved I presume?by sedatk 6y agoIt was only useful when stack wasn’t involved I presume?rusk 6y agoNot sure about Z80 but stack is a bit of a luxury on 6502 ...gp2000 6y agoThe Z-80 stack pointer (SP) is a full 16 bit register. The stack can be anywhere in memory and be as large as needed. The 6502 has only an 8 bit stack pointer which points into page 1 only (addresses 0x100 .. 0x1FF).mark-r 6y agoThe Z80 stack was only limited by your memory size.