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25045f7922
* config/tc-z80.h(md_register_arithmetic): Define as 0. * config/tc-z80.c(md_begin): Store register names in symbol table, prevents usage as ordinary symbol. * config/tc-z80.c(contains_register): New function. * config/tc-z80.c(parse_exp2): Removed. * config/tc-z80.c(parse_exp_not_indexed): New function. * config/tc-z80.c(parse_exp): Add code to recogize indexed addressing after parsing. * config/tc-z80.c(emit_byte, emit_word): Use contains_register. * config/tc-z80.c(emit_jp): Use parse_exp_not_indexed, simplify condition for jump to register. * config/tc-z80.c(emit_call, emit_jr, emit_ex, emit_rst): Use parse_exp_not_indexed.
110 lines
4.1 KiB
C
110 lines
4.1 KiB
C
/* this is tc-z80.h
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Copyright 2005, 2006, 2007, 2012 Free Software Foundation, Inc.
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Contributed by Arnold Metselaar <arnold_m@operamail.com>
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of .the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#ifndef TC_Z80
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#define TC_Z80
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#define TARGET_ARCH bfd_arch_z80
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#define BFD_ARCH TARGET_ARCH
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#define COFF_MAGIC 0x5A80
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#define TARGET_MACH 0
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#define TARGET_BYTES_BIG_ENDIAN 0
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/* If you define this macro, GAS will warn about the
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use of nonstandard escape sequences in a string. */
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#define ONLY_STANDARD_ESCAPES
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/* GAS will call this function for any expression that can not be
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recognized. When the function is called, `input_line_pointer'
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will point to the start of the expression. */
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#define md_operand(x)
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/* This should just call either `number_to_chars_bigendian' or
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`number_to_chars_littleendian', whichever is appropriate. On
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targets like the MIPS which support options to change the
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endianness, which function to call is a runtime decision. On
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other targets, `md_number_to_chars' can be a simple macro. */
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#define md_number_to_chars number_to_chars_littleendian
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#define TC_COUNT_RELOC(x) 1
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#define TC_COFF_FIX2RTYPE(fixP) tc_coff_fix2rtype (fixP)
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#define md_convert_frag(b,s,f) as_fatal ("convert_frag called\n")
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#define md_estimate_size_before_relax(f,s) \
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(as_fatal (_("estimate_size_before_relax called")), 1)
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/* Define some functions to be called by generic code. */
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#define md_end z80_md_end
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#define md_start_line_hook() { if (z80_start_line_hook ()) continue; }
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#define TC_CONS_FIX_NEW z80_cons_fix_new
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extern void z80_md_end (void);
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extern int z80_start_line_hook (void);
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extern void z80_cons_fix_new (fragS *, int, int, expressionS *);
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#define WORKING_DOT_WORD
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/* If you define this macro, it means that `tc_gen_reloc' may return
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multiple relocation entries for a single fixup. In this case, the
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return value of `tc_gen_reloc' is a pointer to a null terminated
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array. */
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#undef RELOC_EXPANSION_POSSIBLE
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/* No shared lib support, so we don't need to ensure
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externally visible symbols can be overridden. */
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#define EXTERN_FORCE_RELOC 0
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/* Values passed to md_apply_fix3 don't include the symbol value. */
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#define MD_APPLY_SYM_VALUE(FIX) 0
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#define LISTING_WORD_SIZE 2
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/* A single '=' is accepted as a comparison operator. */
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#define O_SINGLE_EQ O_eq
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/* A '$' is used to refer to the current location or as a hex. prefix. */
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#define DOLLAR_DOT
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#define DOLLAR_AMBIGU 1
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#define LOCAL_LABELS_FB 1
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#define LITERAL_PREFIXPERCENT_BIN
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#define NUMBERS_WITH_SUFFIX 1
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#define NO_PSEUDO_DOT 1
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/* We allow single quotes to delimit character constants as
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well, but it is cleaner to handle that in tc-z80.c. */
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#define SINGLE_QUOTE_STRINGS
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#define NO_STRING_ESCAPES
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/* An `.lcomm' directive with no explicit alignment parameter will
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use this macro to set P2VAR to the alignment that a request for
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SIZE bytes will have. The alignment is expressed as a power of
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two. If no alignment should take place, the macro definition
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should do nothing. Some targets define a `.bss' directive that is
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also affected by this macro. The default definition will set
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P2VAR to the truncated power of two of sizes up to eight bytes. */
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#define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) (P2VAR) = 0
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/* It does not make any sense to perform arithmetic on the numbers
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we use to identify registers. */
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#define md_register_arithmetic 0
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#endif
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