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-@c Copyright (C) 1991, 1992, 1993, 1994, 1995, 2003
-@c Free Software Foundation, Inc.
-@c This is part of the GAS manual.
-@c For copying conditions, see the file as.texinfo.
-@ifset GENERIC
-@page
-@end ifset
-@node H8/300-Dependent
-@chapter H8/300 Dependent Features
-
-@cindex H8/300 support
-@menu
-* H8/300 Options:: Options
-* H8/300 Syntax:: Syntax
-* H8/300 Floating Point:: Floating Point
-* H8/300 Directives:: H8/300 Machine Directives
-* H8/300 Opcodes:: Opcodes
-@end menu
-
-@node H8/300 Options
-@section Options
-
-@cindex H8/300 options (none)
-@cindex options, H8/300 (none)
-@code{@value{AS}} has no additional command-line options for the
-Renesas (formerly Hitachi) H8/300 family.
-
-@node H8/300 Syntax
-@section Syntax
-@menu
-* H8/300-Chars:: Special Characters
-* H8/300-Regs:: Register Names
-* H8/300-Addressing:: Addressing Modes
-@end menu
-
-@node H8/300-Chars
-@subsection Special Characters
-
-@cindex line comment character, H8/300
-@cindex H8/300 line comment character
-@samp{;} is the line comment character.
-
-@cindex line separator, H8/300
-@cindex statement separator, H8/300
-@cindex H8/300 line separator
-@samp{$} can be used instead of a newline to separate statements.
-Therefore @emph{you may not use @samp{$} in symbol names} on the H8/300.
-
-@node H8/300-Regs
-@subsection Register Names
-
-@cindex H8/300 registers
-@cindex register names, H8/300
-You can use predefined symbols of the form @samp{r@var{n}h} and
-@samp{r@var{n}l} to refer to the H8/300 registers as sixteen 8-bit
-general-purpose registers. @var{n} is a digit from @samp{0} to
-@samp{7}); for instance, both @samp{r0h} and @samp{r7l} are valid
-register names.
-
-You can also use the eight predefined symbols @samp{r@var{n}} to refer
-to the H8/300 registers as 16-bit registers (you must use this form for
-addressing).
-
-On the H8/300H, you can also use the eight predefined symbols
-@samp{er@var{n}} (@samp{er0} @dots{} @samp{er7}) to refer to the 32-bit
-general purpose registers.
-
-The two control registers are called @code{pc} (program counter; a
-16-bit register, except on the H8/300H where it is 24 bits) and
-@code{ccr} (condition code register; an 8-bit register). @code{r7} is
-used as the stack pointer, and can also be called @code{sp}.
-
-@node H8/300-Addressing
-@subsection Addressing Modes
-
-@cindex addressing modes, H8/300
-@cindex H8/300 addressing modes
-@value{AS} understands the following addressing modes for the H8/300:
-@table @code
-@item r@var{n}
-Register direct
-
-@item @@r@var{n}
-Register indirect
-
-@need 1200
-@item @@(@var{d}, r@var{n})
-@itemx @@(@var{d}:16, r@var{n})
-@itemx @@(@var{d}:24, r@var{n})
-Register indirect: 16-bit or 24-bit displacement @var{d} from register
-@var{n}. (24-bit displacements are only meaningful on the H8/300H.)
-
-@item @@r@var{n}+
-Register indirect with post-increment
-
-@item @@-r@var{n}
-Register indirect with pre-decrement
-
-@item @code{@@}@var{aa}
-@itemx @code{@@}@var{aa}:8
-@itemx @code{@@}@var{aa}:16
-@itemx @code{@@}@var{aa}:24
-Absolute address @code{aa}. (The address size @samp{:24} only makes
-sense on the H8/300H.)
-
-@item #@var{xx}
-@itemx #@var{xx}:8
-@itemx #@var{xx}:16
-@itemx #@var{xx}:32
-Immediate data @var{xx}. You may specify the @samp{:8}, @samp{:16}, or
-@samp{:32} for clarity, if you wish; but @code{@value{AS}} neither
-requires this nor uses it---the data size required is taken from
-context.
-
-@item @code{@@}@code{@@}@var{aa}
-@itemx @code{@@}@code{@@}@var{aa}:8
-Memory indirect. You may specify the @samp{:8} for clarity, if you
-wish; but @code{@value{AS}} neither requires this nor uses it.
-@end table
-
-@node H8/300 Floating Point
-@section Floating Point
-
-@cindex floating point, H8/300 (@sc{ieee})
-@cindex H8/300 floating point (@sc{ieee})
-The H8/300 family has no hardware floating point, but the @code{.float}
-directive generates @sc{ieee} floating-point numbers for compatibility
-with other development tools.
-
-@page
-@node H8/300 Directives
-@section H8/300 Machine Directives
-
-@cindex H8/300 machine directives (none)
-@cindex machine directives, H8/300 (none)
-@cindex @code{word} directive, H8/300
-@cindex @code{int} directive, H8/300
-@code{@value{AS}} has the following machine-dependent directives for
-the H8/300:
-
-@table @code
-@cindex H8/300H, assembling for
-@item .h8300h
-Recognize and emit additional instructions for the H8/300H variant, and
-also make @code{.int} emit 32-bit numbers rather than the usual (16-bit)
-for the H8/300 family.
-
-@item .h8300s
-Recognize and emit additional instructions for the H8S variant, and
-also make @code{.int} emit 32-bit numbers rather than the usual (16-bit)
-for the H8/300 family.
-
-@item .h8300hn
-Recognize and emit additional instructions for the H8/300H variant in
-normal mode, and also make @code{.int} emit 32-bit numbers rather than
-the usual (16-bit) for the H8/300 family.
-
-@item .h8300sn
-Recognize and emit additional instructions for the H8S variant in
-normal mode, and also make @code{.int} emit 32-bit numbers rather than
-the usual (16-bit) for the H8/300 family.
-@end table
-
-On the H8/300 family (including the H8/300H) @samp{.word} directives
-generate 16-bit numbers.
-
-@node H8/300 Opcodes
-@section Opcodes
-
-@cindex H8/300 opcode summary
-@cindex opcode summary, H8/300
-@cindex mnemonics, H8/300
-@cindex instruction summary, H8/300
-For detailed information on the H8/300 machine instruction set, see
-@cite{H8/300 Series Programming Manual}. For information specific to
-the H8/300H, see @cite{H8/300H Series Programming Manual} (Renesas).
-
-@code{@value{AS}} implements all the standard H8/300 opcodes. No additional
-pseudo-instructions are needed on this family.
-
-@ifset SMALL
-@c this table, due to the multi-col faking and hardcoded order, looks silly
-@c except in smallbook. See comments below "@set SMALL" near top of this file.
-
-The following table summarizes the H8/300 opcodes, and their arguments.
-Entries marked @samp{*} are opcodes used only on the H8/300H.
-
-@smallexample
-@c Using @group seems to use the normal baselineskip, not the smallexample
-@c baselineskip; looks approx doublespaced.
- @i{Legend:}
- Rs @r{source register}
- Rd @r{destination register}
- abs @r{absolute address}
- imm @r{immediate data}
- disp:N @r{N-bit displacement from a register}
- pcrel:N @r{N-bit displacement relative to program counter}
-
- add.b #imm,rd * andc #imm,ccr
- add.b rs,rd band #imm,rd
- add.w rs,rd band #imm,@@rd
-* add.w #imm,rd band #imm,@@abs:8
-* add.l rs,rd bra pcrel:8
-* add.l #imm,rd * bra pcrel:16
- adds #imm,rd bt pcrel:8
- addx #imm,rd * bt pcrel:16
- addx rs,rd brn pcrel:8
- and.b #imm,rd * brn pcrel:16
- and.b rs,rd bf pcrel:8
-* and.w rs,rd * bf pcrel:16
-* and.w #imm,rd bhi pcrel:8
-* and.l #imm,rd * bhi pcrel:16
-* and.l rs,rd bls pcrel:8
-@page
-* bls pcrel:16 bld #imm,rd
- bcc pcrel:8 bld #imm,@@rd
-* bcc pcrel:16 bld #imm,@@abs:8
- bhs pcrel:8 bnot #imm,rd
-* bhs pcrel:16 bnot #imm,@@rd
- bcs pcrel:8 bnot #imm,@@abs:8
-* bcs pcrel:16 bnot rs,rd
- blo pcrel:8 bnot rs,@@rd
-* blo pcrel:16 bnot rs,@@abs:8
- bne pcrel:8 bor #imm,rd
-* bne pcrel:16 bor #imm,@@rd
- beq pcrel:8 bor #imm,@@abs:8
-* beq pcrel:16 bset #imm,rd
- bvc pcrel:8 bset #imm,@@rd
-* bvc pcrel:16 bset #imm,@@abs:8
- bvs pcrel:8 bset rs,rd
-* bvs pcrel:16 bset rs,@@rd
- bpl pcrel:8 bset rs,@@abs:8
-* bpl pcrel:16 bsr pcrel:8
- bmi pcrel:8 bsr pcrel:16
-* bmi pcrel:16 bst #imm,rd
- bge pcrel:8 bst #imm,@@rd
-* bge pcrel:16 bst #imm,@@abs:8
- blt pcrel:8 btst #imm,rd
-* blt pcrel:16 btst #imm,@@rd
- bgt pcrel:8 btst #imm,@@abs:8
-* bgt pcrel:16 btst rs,rd
- ble pcrel:8 btst rs,@@rd
-* ble pcrel:16 btst rs,@@abs:8
- bclr #imm,rd bxor #imm,rd
- bclr #imm,@@rd bxor #imm,@@rd
- bclr #imm,@@abs:8 bxor #imm,@@abs:8
- bclr rs,rd cmp.b #imm,rd
- bclr rs,@@rd cmp.b rs,rd
- bclr rs,@@abs:8 cmp.w rs,rd
- biand #imm,rd cmp.w rs,rd
- biand #imm,@@rd * cmp.w #imm,rd
- biand #imm,@@abs:8 * cmp.l #imm,rd
- bild #imm,rd * cmp.l rs,rd
- bild #imm,@@rd daa rs
- bild #imm,@@abs:8 das rs
- bior #imm,rd dec.b rs
- bior #imm,@@rd * dec.w #imm,rd
- bior #imm,@@abs:8 * dec.l #imm,rd
- bist #imm,rd divxu.b rs,rd
- bist #imm,@@rd * divxu.w rs,rd
- bist #imm,@@abs:8 * divxs.b rs,rd
- bixor #imm,rd * divxs.w rs,rd
- bixor #imm,@@rd eepmov
- bixor #imm,@@abs:8 * eepmovw
-@page
-* exts.w rd mov.w rs,@@abs:16
-* exts.l rd * mov.l #imm,rd
-* extu.w rd * mov.l rs,rd
-* extu.l rd * mov.l @@rs,rd
- inc rs * mov.l @@(disp:16,rs),rd
-* inc.w #imm,rd * mov.l @@(disp:24,rs),rd
-* inc.l #imm,rd * mov.l @@rs+,rd
- jmp @@rs * mov.l @@abs:16,rd
- jmp abs * mov.l @@abs:24,rd
- jmp @@@@abs:8 * mov.l rs,@@rd
- jsr @@rs * mov.l rs,@@(disp:16,rd)
- jsr abs * mov.l rs,@@(disp:24,rd)
- jsr @@@@abs:8 * mov.l rs,@@-rd
- ldc #imm,ccr * mov.l rs,@@abs:16
- ldc rs,ccr * mov.l rs,@@abs:24
-* ldc @@abs:16,ccr movfpe @@abs:16,rd
-* ldc @@abs:24,ccr movtpe rs,@@abs:16
-* ldc @@(disp:16,rs),ccr mulxu.b rs,rd
-* ldc @@(disp:24,rs),ccr * mulxu.w rs,rd
-* ldc @@rs+,ccr * mulxs.b rs,rd
-* ldc @@rs,ccr * mulxs.w rs,rd
-* mov.b @@(disp:24,rs),rd neg.b rs
-* mov.b rs,@@(disp:24,rd) * neg.w rs
- mov.b @@abs:16,rd * neg.l rs
- mov.b rs,rd nop
- mov.b @@abs:8,rd not.b rs
- mov.b rs,@@abs:8 * not.w rs
- mov.b rs,rd * not.l rs
- mov.b #imm,rd or.b #imm,rd
- mov.b @@rs,rd or.b rs,rd
- mov.b @@(disp:16,rs),rd * or.w #imm,rd
- mov.b @@rs+,rd * or.w rs,rd
- mov.b @@abs:8,rd * or.l #imm,rd
- mov.b rs,@@rd * or.l rs,rd
- mov.b rs,@@(disp:16,rd) orc #imm,ccr
- mov.b rs,@@-rd pop.w rs
- mov.b rs,@@abs:8 * pop.l rs
- mov.w rs,@@rd push.w rs
-* mov.w @@(disp:24,rs),rd * push.l rs
-* mov.w rs,@@(disp:24,rd) rotl.b rs
-* mov.w @@abs:24,rd * rotl.w rs
-* mov.w rs,@@abs:24 * rotl.l rs
- mov.w rs,rd rotr.b rs
- mov.w #imm,rd * rotr.w rs
- mov.w @@rs,rd * rotr.l rs
- mov.w @@(disp:16,rs),rd rotxl.b rs
- mov.w @@rs+,rd * rotxl.w rs
- mov.w @@abs:16,rd * rotxl.l rs
- mov.w rs,@@(disp:16,rd) rotxr.b rs
- mov.w rs,@@-rd * rotxr.w rs
-@page
-* rotxr.l rs * stc ccr,@@(disp:24,rd)
- bpt * stc ccr,@@-rd
- rte * stc ccr,@@abs:16
- rts * stc ccr,@@abs:24
- shal.b rs sub.b rs,rd
-* shal.w rs sub.w rs,rd
-* shal.l rs * sub.w #imm,rd
- shar.b rs * sub.l rs,rd
-* shar.w rs * sub.l #imm,rd
-* shar.l rs subs #imm,rd
- shll.b rs subx #imm,rd
-* shll.w rs subx rs,rd
-* shll.l rs * trapa #imm
- shlr.b rs xor #imm,rd
-* shlr.w rs xor rs,rd
-* shlr.l rs * xor.w #imm,rd
- sleep * xor.w rs,rd
- stc ccr,rd * xor.l #imm,rd
-* stc ccr,@@rs * xor.l rs,rd
-* stc ccr,@@(disp:16,rd) xorc #imm,ccr
-@end smallexample
-@end ifset
-
-@cindex size suffixes, H8/300
-@cindex H8/300 size suffixes
-Four H8/300 instructions (@code{add}, @code{cmp}, @code{mov},
-@code{sub}) are defined with variants using the suffixes @samp{.b},
-@samp{.w}, and @samp{.l} to specify the size of a memory operand.
-@code{@value{AS}} supports these suffixes, but does not require them;
-since one of the operands is always a register, @code{@value{AS}} can
-deduce the correct size.
-
-For example, since @code{r0} refers to a 16-bit register,
-@example
-mov r0,@@foo
-@exdent is equivalent to
-mov.w r0,@@foo
-@end example
-
-If you use the size suffixes, @code{@value{AS}} issues a warning when
-the suffix and the register size do not match.
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 02:28:16 +0000