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Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …
... want to synchronise with the contended memory cycles, so as not ... method and lots of tedious contended cycle counting...
[code ... ]
; start on the first contended cycle of the line
Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …
... didn't do any tricksy contended-cycle-counting then either, so ...SAVEing without waiting for keypresshello, here's question for y'all. is there a way in BASIC to bypass the "Start tape, then press any key" prompt when SAVEing an array? sorry if it'…
... solution to working around the contended memory issue.
anyway ...50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... the code itself isn't contended, the instruction boils down to ... to 24T to do a contended PUSH.
Now there ...Assembly help: EQUCan anyone explain in duffers language the purpose of the EQU term in assembly? I found this info in another thread: EQU: Equate a name to a specif…
...
MyName .EQU 1000
HALT[/B]
and
MyName .WORD 1000
HALT[/B]
With EQU ... ]LD HL,1000.[/B]The HALT istruction will appear at address ... contains the number 1000, so HALT will appear at adress [B ...The most unique game loaderFor me it has to be Technician Ted, when the stripes give way to walking men and a timer.
... nice. And it runs in contended memory. Thats rare as loaders ... rom would be running in contended RAM and a couple of ...50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... slow down. Thanks to the contended way the screen memory works ...contended memory...so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct …
... ]- I/O operations are not contended (fast IN/OUT instructions)[/B ...contended memory...so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct …
... ]- I/O operations are not contended (fast IN/OUT instructions)[/B ...
