Change wording of error message to "percent-operand" from "%operand" as the
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1 @c Copyright (C) 1991, 1992, 1993, 1994, 1995, 2003
2 @c Free Software Foundation, Inc.
3 @c This is part of the GAS manual.
4 @c For copying conditions, see the file as.texinfo.
5 @page
6 @node H8/500-Dependent
7 @chapter H8/500 Dependent Features
9 @cindex H8/500 support
10 @menu
11 * H8/500 Options::              Options
12 * H8/500 Syntax::               Syntax
13 * H8/500 Floating Point::       Floating Point
14 * H8/500 Directives::           H8/500 Machine Directives
15 * H8/500 Opcodes::              Opcodes
16 @end menu
18 @node H8/500 Options
19 @section Options
21 @cindex H8/500 options (none)
22 @cindex options, H8/500 (none)
23 @code{@value{AS}} has no additional command-line options for the
24 Renesas (formerly Hitachi) H8/500 family.
26 @node H8/500 Syntax
27 @section Syntax
29 @menu
30 * H8/500-Chars::                Special Characters
31 * H8/500-Regs::                 Register Names
32 * H8/500-Addressing::           Addressing Modes
33 @end menu
35 @node H8/500-Chars
36 @subsection Special Characters
38 @cindex line comment character, H8/500
39 @cindex H8/500 line comment character
40 @samp{!} is the line comment character.
42 @cindex line separator, H8/500
43 @cindex statement separator, H8/500
44 @cindex H8/500 line separator
45 @samp{;} can be used instead of a newline to separate statements.
47 @cindex symbol names, @samp{$} in
48 @cindex @code{$} in symbol names
49 Since @samp{$} has no special meaning, you may use it in symbol names.
51 @node H8/500-Regs
52 @subsection Register Names
54 @cindex H8/500 registers
55 @cindex registers, H8/500
56 You can use the predefined symbols @samp{r0}, @samp{r1}, @samp{r2},
57 @samp{r3}, @samp{r4}, @samp{r5}, @samp{r6}, and @samp{r7} to refer to
58 the H8/500 registers.
60 The H8/500 also has these control registers:
62 @table @code
63 @item cp
64 code pointer
66 @item dp
67 data pointer
69 @item bp
70 base pointer
72 @item tp
73 stack top pointer
75 @item ep
76 extra pointer
78 @item sr
79 status register
81 @item ccr
82 condition code register
83 @end table
85 All registers are 16 bits long.  To represent 32 bit numbers, use two
86 adjacent registers; for distant memory addresses, use one of the segment
87 pointers (@code{cp} for the program counter; @code{dp} for
88 @code{r0}--@code{r3}; @code{ep} for @code{r4} and @code{r5}; and
89 @code{tp} for @code{r6} and @code{r7}.
91 @node H8/500-Addressing
92 @subsection Addressing Modes
94 @cindex addressing modes, H8/500
95 @cindex H8/500 addressing modes
96 @value{AS} understands the following addressing modes for the H8/500:
97 @table @code
98 @item R@var{n}
99 Register direct
101 @item @@R@var{n}
102 Register indirect
104 @item @@(d:8, R@var{n})
105 Register indirect with 8 bit signed displacement
107 @item @@(d:16, R@var{n})
108 Register indirect with 16 bit signed displacement
110 @item @@-R@var{n}
111 Register indirect with pre-decrement
113 @item @@R@var{n}+
114 Register indirect with post-increment
116 @item @@@var{aa}:8
117 8 bit absolute address
119 @item @@@var{aa}:16
120 16 bit absolute address
122 @item #@var{xx}:8
123 8 bit immediate
125 @item #@var{xx}:16
126 16 bit immediate
127 @end table
129 @node H8/500 Floating Point
130 @section Floating Point
132 @cindex floating point, H8/500 (@sc{ieee})
133 @cindex H8/500 floating point (@sc{ieee})
134 The H8/500 family has no hardware floating point, but the @code{.float}
135 directive generates @sc{ieee} floating-point numbers for compatibility
136 with other development tools.
138 @node H8/500 Directives
139 @section H8/500 Machine Directives
141 @cindex H8/500 machine directives (none)
142 @cindex machine directives, H8/500 (none)
143 @cindex @code{word} directive, H8/500
144 @cindex @code{int} directive, H8/500
145 @code{@value{AS}} has no machine-dependent directives for the H8/500.
146 However, on this platform the @samp{.int} and @samp{.word} directives
147 generate 16-bit numbers.
149 @node H8/500 Opcodes
150 @section Opcodes
152 @cindex H8/500 opcode summary
153 @cindex opcode summary, H8/500
154 @cindex mnemonics, H8/500
155 @cindex instruction summary, H8/500
156 For detailed information on the H8/500 machine instruction set, see
157 @cite{H8/500 Series Programming Manual} (Renesas M21T001).
159 @code{@value{AS}} implements all the standard H8/500 opcodes.  No additional
160 pseudo-instructions are needed on this family.
162 @ifset SMALL
163 @c this table, due to the multi-col faking and hardcoded order, looks silly
164 @c except in smallbook.  See comments below "@set SMALL" near top of this file.
166 The following table summarizes H8/500 opcodes and their operands:
168 @c Use @group if it ever works, instead of @page
169 @page
170 @smallexample
171 @i{Legend:}
172 abs8      @r{8-bit absolute address}
173 abs16     @r{16-bit absolute address}
174 abs24     @r{24-bit absolute address}
175 crb       @r{@code{ccr}, @code{br}, @code{ep}, @code{dp}, @code{tp}, @code{dp}}
176 disp8     @r{8-bit displacement}
177 ea        @r{@code{rn}, @code{@@rn}, @code{@@(d:8, rn)}, @code{@@(d:16, rn)},}
178           @r{@code{@@-rn}, @code{@@rn+}, @code{@@aa:8}, @code{@@aa:16},}
179           @r{@code{#xx:8}, @code{#xx:16}}
180 ea_mem    @r{@code{@@rn}, @code{@@(d:8, rn)}, @code{@@(d:16, rn)},}
181           @r{@code{@@-rn}, @code{@@rn+}, @code{@@aa:8}, @code{@@aa:16}}
182 ea_noimm  @r{@code{rn}, @code{@@rn}, @code{@@(d:8, rn)}, @code{@@(d:16, rn)},}
183           @r{@code{@@-rn}, @code{@@rn+}, @code{@@aa:8}, @code{@@aa:16}}
184 fp        r6
185 imm4      @r{4-bit immediate data}
186 imm8      @r{8-bit immediate data}
187 imm16     @r{16-bit immediate data}
188 pcrel8    @r{8-bit offset from program counter}
189 pcrel16   @r{16-bit offset from program counter}
190 qim       @r{@code{-2}, @code{-1}, @code{1}, @code{2}}
191 rd        @r{any register}
192 rs        @r{a register distinct from rd}
193 rlist     @r{comma-separated list of registers in parentheses;}
194           @r{register ranges @code{rd-rs} are allowed}
195 sp        @r{stack pointer (@code{r7})}
196 sr        @r{status register}
197 sz        @r{size; @samp{.b} or @samp{.w}.  If omitted, default @samp{.w}}
199 ldc[.b] ea,crb                 bcc[.w] pcrel16
200 ldc[.w] ea,sr                  bcc[.b] pcrel8 
201 add[:q] sz qim,ea_noimm        bhs[.w] pcrel16
202 add[:g] sz ea,rd               bhs[.b] pcrel8 
203 adds sz ea,rd                  bcs[.w] pcrel16
204 addx sz ea,rd                  bcs[.b] pcrel8 
205 and sz ea,rd                   blo[.w] pcrel16
206 andc[.b] imm8,crb              blo[.b] pcrel8 
207 andc[.w] imm16,sr              bne[.w] pcrel16
208 bpt                            bne[.b] pcrel8 
209 bra[.w] pcrel16                beq[.w] pcrel16
210 bra[.b] pcrel8                 beq[.b] pcrel8 
211 bt[.w] pcrel16                 bvc[.w] pcrel16
212 bt[.b] pcrel8                  bvc[.b] pcrel8 
213 brn[.w] pcrel16                bvs[.w] pcrel16
214 brn[.b] pcrel8                 bvs[.b] pcrel8 
215 bf[.w] pcrel16                 bpl[.w] pcrel16
216 bf[.b] pcrel8                  bpl[.b] pcrel8 
217 bhi[.w] pcrel16                bmi[.w] pcrel16
218 bhi[.b] pcrel8                 bmi[.b] pcrel8 
219 bls[.w] pcrel16                bge[.w] pcrel16
220 bls[.b] pcrel8                 bge[.b] pcrel8 
221 @page
222 blt[.w] pcrel16                mov[:g][.b] imm8,ea_mem       
223 blt[.b] pcrel8                 mov[:g][.w] imm16,ea_mem      
224 bgt[.w] pcrel16                movfpe[.b] ea,rd              
225 bgt[.b] pcrel8                 movtpe[.b] rs,ea_noimm        
226 ble[.w] pcrel16                mulxu sz ea,rd                
227 ble[.b] pcrel8                 neg sz ea                     
228 bclr sz imm4,ea_noimm          nop                           
229 bclr sz rs,ea_noimm            not sz ea                     
230 bnot sz imm4,ea_noimm          or sz ea,rd                   
231 bnot sz rs,ea_noimm            orc[.b] imm8,crb              
232 bset sz imm4,ea_noimm          orc[.w] imm16,sr              
233 bset sz rs,ea_noimm            pjmp abs24                    
234 bsr[.b] pcrel8                 pjmp @@rd                     
235 bsr[.w] pcrel16                pjsr abs24                    
236 btst sz imm4,ea_noimm          pjsr @@rd                     
237 btst sz rs,ea_noimm            prtd imm8                     
238 clr sz ea                      prtd imm16                    
239 cmp[:e][.b] imm8,rd            prts                          
240 cmp[:i][.w] imm16,rd           rotl sz ea                    
241 cmp[:g].b imm8,ea_noimm        rotr sz ea                    
242 cmp[:g][.w] imm16,ea_noimm     rotxl sz ea                   
243 Cmp[:g] sz ea,rd               rotxr sz ea                   
244 dadd rs,rd                     rtd imm8                     
245 divxu sz ea,rd                 rtd imm16                    
246 dsub rs,rd                     rts                          
247 exts[.b] rd                    scb/f rs,pcrel8               
248 extu[.b] rd                    scb/ne rs,pcrel8             
249 jmp @@rd                        scb/eq rs,pcrel8             
250 jmp @@(imm8,rd)                 shal sz ea                   
251 jmp @@(imm16,rd)                shar sz ea                    
252 jmp abs16                      shll sz ea            
253 jsr @@rd                        shlr sz ea            
254 jsr @@(imm8,rd)                 sleep                 
255 jsr @@(imm16,rd)                stc[.b] crb,ea_noimm  
256 jsr abs16                      stc[.w] sr,ea_noimm   
257 ldm @@sp+,(rlist)               stm (rlist),@@-sp     
258 link fp,imm8                   sub sz ea,rd          
259 link fp,imm16                  subs sz ea,rd         
260 mov[:e][.b] imm8,rd            subx sz ea,rd         
261 mov[:i][.w] imm16,rd           swap[.b] rd           
262 mov[:l][.w] abs8,rd            tas[.b] ea     
263 mov[:l].b abs8,rd              trapa imm4     
264 mov[:s][.w] rs,abs8            trap/vs        
265 mov[:s].b rs,abs8              tst sz ea      
266 mov[:f][.w] @@(disp8,fp),rd     unlk fp        
267 mov[:f][.w] rs,@@(disp8,fp)     xch[.w] rs,rd 
268 mov[:f].b @@(disp8,fp),rd       xor sz ea,rd   
269 mov[:f].b rs,@@(disp8,fp)       xorc.b imm8,crb
270 mov[:g] sz rs,ea_mem           xorc.w imm16,sr
271 mov[:g] sz ea,rd              
272 @end smallexample
273 @end ifset