3.3.9 Z80 Options (apply to z80, z180,
r2k, r3ka, tlcs90, ez80_z80)
- [—portmode=<Value>] Determinate
PORT I/O mode (<Value> is z80 or z180).
- [—asm=<Value>] Define
assembler name (<Value> is rgbds, sdasz80, isas or z80asm).
- [—reserve-regs-iy] This
option tells the compiler that it is not allowed to use register pair
iy. The option can be useful for systems where iy is reserved for
the OS. This option is incompatible with —fomit-frame-pointer.
- [—fno-omit-frame-pointer] Never
omit the frame pointer.