Yes, Turbo Pascal was awesome and quite possibly the best programming environment for the Z80. The register-starved 6502 however relies on zero-page addressing

Yes, Turbo Pascal was awesome and quite possibly the best programming environment for the Z80. The register-starved 6502 however relies on zero-page addressing for efficient code, that's difficult to exploit in compilers for high level languages (and hence why you don't see that in general purpose CPUs anymore). One way around that is to compile to a byte code which is then interpreted (e.g. BCPL, UCSD Pascal).