Nectarine
Infamous OneLiner
Agemixer
(00:25:51)
k
mirrorbird
(00:25:01)
downside: one of your pages on those later models is eaten up by the disk DOS even if you don't want to use it
mirrorbird
(00:24:38)
--is untouchable
mirrorbird
(00:24:33)
Age, an interesting thing about the speccy is that one of the later models lets you page over the ROM. i've seen a quite nice Pac-Man implementation done that way. (and they used it for CP/M i think). the earlier 128K models are extremely similar but ROM
Agemixer
(00:24:07)
so, stack can be used as FILO buffer (for complex maths or sth) 
mirrorbird
(00:22:58)
free(pAgeMixer);
Agemixer
(00:21:45)
so basically zeropage gains you faster memory access for 256 bytes (located 0..255) and stack another 256 (256..511) in a memory
Agemixer
(00:20:05)
PHA to push accu, PLA to pull (for stack) but it is not all efficient by cycles, but makes program smaller instead, up to 66% smaller for these commands
Agemixer
(00:17:56)
program counter = internal register. very rarely required to mangle with - JSR command stores it, then you can read it from stack (which can be used additional 256 registers too)
mirrorbird
(00:17:55)
http://z80-heaven.wikidot.com
