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-z80
Produce code for the Z80 processor. By default accepted undocumented
operations with halves of index registers (IXL
, IXH
, IYL
, IYH
) and
instuction IN F,(C)
. Other useful undocumented instructions produces
warnings. Undocumented instructions may not work on some CPUs, use
them on your own risk.
-r800
Produce code for the R800 processor.
-z180
Produce code for the Z180 processor.
-ez80
Produce code for the eZ80 processor in Z80 memory mode by default.
-ez80-adl
Produce code for the eZ80 processor in ADL memory mode by default.
-local-prefix=prefix
Mark all labels with specified prefix as local. But such label can be
marked global explicitly in the code. This option do not change default
local label prefix .L
, it is just adds new one.
-colonless
Accept colonless labels. All names at line begin are treated as labels.
-sdcc
Accept assembler code produced by SDCC.
-fp-s=FORMAT
Single precision floating point numbers format. Default: ieee754 (32 bit).
-fp-d=FORMAT
Double precision floating point numbers format. Default: ieee754 (64 bit).
-strict
Accept documented instructions only.
-full
Accept all known Z80 instructions.
-with-inst=INST[,...]
-Wnins INST[,...]
Enable specified undocumented instruction(s).
-without-inst=INST[,...]
-Fins INST[,...]
Disable specified undocumented instruction(s).
-ignore-undocumented-instructions
-Wnud
Silently assemble undocumented Z80-instructions that have been adopted as documented R800-instructions .
-ignore-unportable-instructions
-Wnup
Silently assemble all undocumented Z80-instructions.
-warn-undocumented-instructions
-Wud
Issue warnings for undocumented Z80-instructions that work on R800, do not assemble other undocumented instructions without warning.
-warn-unportable-instructions
-Wup
Issue warnings for other undocumented Z80-instructions, do not treat any undocumented instructions as errors.
-forbid-undocumented-instructions
-Fud
Treat all undocumented z80-instructions as errors.
-forbid-unportable-instructions
-Fup
Treat undocumented z80-instructions that do not work on R800 as errors.
Floating point numbers formats.
ieee754
Single or double precision IEEE754 compatible format.
half
Half precision IEEE754 compatible format (16 bits).
single
Single precision IEEE754 compatible format (32 bits).
double
Double precision IEEE754 compatible format (64 bits).
zeda32
32 bit floating point format from z80float library by Zeda.
math48
48 bit floating point format from Math48 package by Anders Hejlsberg.
Known undocumented instructions.
idx-reg-halves
All operations with halves of index registers (IXL
, IXH
, IYL
, IYH
).
sli
SLI
or SLL
instruction. Same as SLA r; INC r
.
op-ii-ld
Istructions like <op> (<ii>+<d>),<r>
. For example: RL (IX+5),C
in-f-c
Instruction IN F,(C)
.
out-c-0
Instruction OUT (C),0
Next: Z80 Syntax, Up: Z80-Dependent [Contents][Index]