| 1 | /*␊ |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * This file contains Original Code and/or Modifications of Original Code␊ |
| 7 | * as defined in and that are subject to the Apple Public Source License␊ |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in␊ |
| 9 | * compliance with the License. The rights granted to you under the License␊ |
| 10 | * may not be used to create, or enable the creation or redistribution of,␊ |
| 11 | * unlawful or unlicensed copies of an Apple operating system, or to␊ |
| 12 | * circumvent, violate, or enable the circumvention or violation of, any␊ |
| 13 | * terms of an Apple operating system software license agreement.␊ |
| 14 | * ␊ |
| 15 | * Please obtain a copy of the License at␊ |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file.␊ |
| 17 | * ␊ |
| 18 | * The Original Code and all software distributed under the License are␊ |
| 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
| 23 | * Please see the License for the specific language governing rights and␊ |
| 24 | * limitations under the License.␊ |
| 25 | * ␊ |
| 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@␊ |
| 27 | */␊ |
| 28 | /*␊ |
| 29 | * @OSF_COPYRIGHT@␊ |
| 30 | */␊ |
| 31 | /* ␊ |
| 32 | * Mach Operating System␊ |
| 33 | * Copyright (c) 1991,1990,1989 Carnegie Mellon University␊ |
| 34 | * All Rights Reserved.␊ |
| 35 | * ␊ |
| 36 | * Permission to use, copy, modify and distribute this software and its␊ |
| 37 | * documentation is hereby granted, provided that both the copyright␊ |
| 38 | * notice and this permission notice appear in all copies of the␊ |
| 39 | * software, derivative works or modified versions, and any portions␊ |
| 40 | * thereof, and that both notices appear in supporting documentation.␊ |
| 41 | * ␊ |
| 42 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"␊ |
| 43 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR␊ |
| 44 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.␊ |
| 45 | * ␊ |
| 46 | * Carnegie Mellon requests users of this software to return to␊ |
| 47 | * ␊ |
| 48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU␊ |
| 49 | * School of Computer Science␊ |
| 50 | * Carnegie Mellon University␊ |
| 51 | * Pittsburgh PA 15213-3890␊ |
| 52 | * ␊ |
| 53 | * any improvements or extensions that they make and grant Carnegie Mellon␊ |
| 54 | * the rights to redistribute these changes.␊ |
| 55 | */␊ |
| 56 | ␊ |
| 57 | #ifndef␉_I386_ASM_H_␊ |
| 58 | #define␉_I386_ASM_H_␊ |
| 59 | ␊ |
| 60 | #ifdef _KERNEL␊ |
| 61 | #include <gprof.h>␊ |
| 62 | #endif␉/* _KERNEL */␊ |
| 63 | ␊ |
| 64 | #if␉defined(MACH_KERNEL) || defined(_KERNEL)␊ |
| 65 | #include <gprof.h>␊ |
| 66 | #endif␉/* MACH_KERNEL || _KERNEL */␊ |
| 67 | ␊ |
| 68 | #if defined(__i386__)␊ |
| 69 | ␊ |
| 70 | #define S_PC␉ (%esp)␊ |
| 71 | #define S_ARG0␉ 4(%esp)␊ |
| 72 | #define S_ARG1␉ 8(%esp)␊ |
| 73 | #define S_ARG2␉12(%esp)␊ |
| 74 | #define S_ARG3␉16(%esp)␊ |
| 75 | #define S_ARG4␉20(%esp)␊ |
| 76 | ␊ |
| 77 | #define FRAME␉pushl %ebp; movl %esp, %ebp␊ |
| 78 | #define EMARF␉leave␊ |
| 79 | ␊ |
| 80 | #define B_LINK␉ (%ebp)␊ |
| 81 | #define B_PC␉ 4(%ebp)␊ |
| 82 | #define B_ARG0␉ 8(%ebp)␊ |
| 83 | #define B_ARG1␉12(%ebp)␊ |
| 84 | #define B_ARG2␉16(%ebp)␊ |
| 85 | #define B_ARG3␉20(%ebp)␊ |
| 86 | ␊ |
| 87 | #elif defined(__x86_64__)␊ |
| 88 | ␊ |
| 89 | #define S_PC␉ (%rsp)␊ |
| 90 | ␊ |
| 91 | #define FRAME␉pushq %rbp; movq %rsp, %rbp␊ |
| 92 | #define EMARF␉leave␊ |
| 93 | ␊ |
| 94 | #define B_LINK␉ (%rbp)␊ |
| 95 | #define B_PC␉ 8(%rbp)␊ |
| 96 | ␊ |
| 97 | #else␊ |
| 98 | #error unsupported architecture␊ |
| 99 | #endif␊ |
| 100 | ␊ |
| 101 | /* There is another definition of ALIGN for .c sources */␊ |
| 102 | #ifdef ASSEMBLER␊ |
| 103 | #define ALIGN 4,0x90␊ |
| 104 | #endif /* ASSEMBLER */␊ |
| 105 | ␊ |
| 106 | #ifndef FALIGN␊ |
| 107 | #define FALIGN ALIGN␊ |
| 108 | #endif␊ |
| 109 | ␊ |
| 110 | #define LB(x,n) n␊ |
| 111 | #if␉__STDC__␊ |
| 112 | #ifndef __NO_UNDERSCORES__␊ |
| 113 | #define␉LCL(x)␉L ## x␊ |
| 114 | #define EXT(x) _ ## x␊ |
| 115 | #define LEXT(x) _ ## x ## :␊ |
| 116 | #else␊ |
| 117 | #define␉LCL(x)␉.L ## x␊ |
| 118 | #define EXT(x) x␊ |
| 119 | #define LEXT(x) x ## :␊ |
| 120 | #endif␊ |
| 121 | #define LBc(x,n) n ## :␊ |
| 122 | #define LBb(x,n) n ## b␊ |
| 123 | #define LBf(x,n) n ## f␊ |
| 124 | #else /* __STDC__ */␊ |
| 125 | #ifndef __NO_UNDERSCORES__␊ |
| 126 | #define LCL(x) L/**/x␊ |
| 127 | #define EXT(x) _/**/x␊ |
| 128 | #define LEXT(x) _/**/x/**/:␊ |
| 129 | #else /* __NO_UNDERSCORES__ */␊ |
| 130 | #define␉LCL(x)␉.L/**/x␊ |
| 131 | #define EXT(x) x␊ |
| 132 | #define LEXT(x) x/**/:␊ |
| 133 | #endif /* __NO_UNDERSCORES__ */␊ |
| 134 | #define LBc(x,n) n/**/:␊ |
| 135 | #define LBb(x,n) n/**/b␊ |
| 136 | #define LBf(x,n) n/**/f␊ |
| 137 | #endif /* __STDC__ */␊ |
| 138 | ␊ |
| 139 | #define SVC .byte 0x9a; .long 0; .word 0x7␊ |
| 140 | ␊ |
| 141 | #define RPC_SVC .byte 0x9a; .long 0; .word 0xf␊ |
| 142 | ␊ |
| 143 | #define String␉.asciz␊ |
| 144 | #define Value␉.word␊ |
| 145 | #define Times(a,b) (a*b)␊ |
| 146 | #define Divide(a,b) (a/b)␊ |
| 147 | ␊ |
| 148 | #define INB␉inb␉%dx, %al␊ |
| 149 | #define OUTB␉outb␉%al, %dx␊ |
| 150 | #define INL␉inl␉%dx, %eax␊ |
| 151 | #define OUTL␉outl␉%eax, %dx␊ |
| 152 | ␊ |
| 153 | #define data16␉.byte 0x66␊ |
| 154 | #define addr16␉.byte 0x67␊ |
| 155 | ␊ |
| 156 | #if !GPROF␊ |
| 157 | #define MCOUNT␊ |
| 158 | ␊ |
| 159 | #elif defined(__SHARED__)␊ |
| 160 | #define MCOUNT␉␉; .data;\␊ |
| 161 | ␉␉␉.align ALIGN;\␊ |
| 162 | ␉␉␉LBc(x, 8) .long 0;\␊ |
| 163 | ␉␉␉.text;\␊ |
| 164 | ␉␉␉Gpush;\␊ |
| 165 | ␉␉␉Gload;\␊ |
| 166 | ␉␉␉leal Gotoff(LBb(x,8)),%edx;\␊ |
| 167 | ␉␉␉Egaddr(%eax,_mcount_ptr);\␊ |
| 168 | ␉␉␉Gpop;\␊ |
| 169 | ␉␉␉call *(%eax);␊ |
| 170 | ␊ |
| 171 | #else␉/* !GPROF, !__SHARED__ */␊ |
| 172 | #define MCOUNT␉␉; call mcount;␊ |
| 173 | #endif /* GPROF */␊ |
| 174 | ␊ |
| 175 | #ifdef __ELF__␊ |
| 176 | #define ELF_FUNC(x)␉.type x,@function␊ |
| 177 | #define ELF_DATA(x)␉.type x,@object␊ |
| 178 | #define ELF_SIZE(x,s)␉.size x,s␊ |
| 179 | #else␊ |
| 180 | #define ELF_FUNC(x)␊ |
| 181 | #define ELF_DATA(x)␊ |
| 182 | #define ELF_SIZE(x,s)␊ |
| 183 | #endif␊ |
| 184 | ␊ |
| 185 | #define␉Entry(x)␉.globl EXT(x); ELF_FUNC(EXT(x)); .align FALIGN; LEXT(x)␊ |
| 186 | #define␉ENTRY(x)␉Entry(x) MCOUNT␊ |
| 187 | #define␉ENTRY2(x,y)␉.globl EXT(x); .globl EXT(y); \␊ |
| 188 | ␉␉␉ELF_FUNC(EXT(x)); ELF_FUNC(EXT(y)); \␊ |
| 189 | ␉␉␉.align FALIGN; LEXT(x); LEXT(y) \␊ |
| 190 | ␉␉␉MCOUNT␊ |
| 191 | #if __STDC__␊ |
| 192 | #define␉ASENTRY(x) ␉.globl x; .align FALIGN; x ## : ELF_FUNC(x) MCOUNT␊ |
| 193 | #else␊ |
| 194 | #define␉ASENTRY(x) ␉.globl x; .align FALIGN; x: ELF_FUNC(x) MCOUNT␊ |
| 195 | #endif /* __STDC__ */␊ |
| 196 | ␊ |
| 197 | #define␉DATA(x)␉␉.globl EXT(x); ELF_DATA(EXT(x)); .align ALIGN; LEXT(x)␊ |
| 198 | ␊ |
| 199 | #define End(x)␉␉ELF_SIZE(x,.-x)␊ |
| 200 | #define END(x)␉␉End(EXT(x))␊ |
| 201 | #define ENDDATA(x)␉END(x)␊ |
| 202 | #define Enddata(x)␉End(x)␊ |
| 203 | ␊ |
| 204 | /*␊ |
| 205 | * ELF shared library accessor macros.␊ |
| 206 | * Gpush saves the %ebx register used for the GOT address␊ |
| 207 | * Gpop pops %ebx if we need a GOT␊ |
| 208 | * Gload loads %ebx with the GOT address if shared libraries are used␊ |
| 209 | * Gcall calls an external function.␊ |
| 210 | * Gotoff allows you to reference local labels.␊ |
| 211 | * Gotoff2 allows you to reference local labels with an index reg.␊ |
| 212 | * Gotoff3 allows you to reference local labels with an index reg & size.␊ |
| 213 | * Gaddr loads up a register with an address of an external item.␊ |
| 214 | * Gstack is the number of bytes that Gpush pushes on the stack.␊ |
| 215 | *␊ |
| 216 | * Varients of the above with E or L prefixes do EXT(name) or LCL(name)␊ |
| 217 | * respectively.␊ |
| 218 | */␊ |
| 219 | ␊ |
| 220 | #ifndef __SHARED__␊ |
| 221 | #define Gpush␊ |
| 222 | #define Gpop␊ |
| 223 | #define Gload␊ |
| 224 | #define Gcall(func)␉␉call func␊ |
| 225 | #define Gotoff(lab)␉␉lab␊ |
| 226 | #define Gotoff2(l,r)␉␉l(r)␊ |
| 227 | #define Gotoff3(l,r,s)␉␉l(,r,s)␊ |
| 228 | #define Gaddr(to,lab)␉␉movl $lab,to␊ |
| 229 | #define Gcmp(lab,reg)␉␉cmpl $lab,reg␊ |
| 230 | #define Gmemload(lab,reg)␉movl lab,reg␊ |
| 231 | #define Gmemstore(reg,lab,tmp)␉movl reg,lab␊ |
| 232 | #define Gstack␉␉␉0␊ |
| 233 | ␊ |
| 234 | #else␊ |
| 235 | #ifdef __ELF__␉␉␉/* ELF shared libraries */␊ |
| 236 | #define Gpush␉␉␉pushl %ebx␊ |
| 237 | #define Gpop␉␉␉popl %ebx␊ |
| 238 | #define Gload␉␉␉call 9f; 9: popl %ebx; addl $_GLOBAL_OFFSET_TABLE_+[.-9b],%ebx␊ |
| 239 | #define Gcall(func)␉␉call EXT(func)@PLT␊ |
| 240 | #define Gotoff(lab)␉␉lab@GOTOFF(%ebx)␊ |
| 241 | #define Gotoff2(l,r)␉␉l@GOTOFF(%ebx,r)␊ |
| 242 | #define Gotoff3(l,r,s)␉␉l@GOTOFF(%ebx,r,s)␊ |
| 243 | #define Gaddr(to,lab)␉␉movl lab@GOT(%ebx),to␊ |
| 244 | #define Gcmp(lab,reg)␉␉cmpl reg,lab@GOT(%ebx)␊ |
| 245 | #define Gmemload(lab,reg)␉movl lab@GOT(%ebx),reg; movl (reg),reg␊ |
| 246 | #define Gmemstore(reg,lab,tmp)␉movl lab@GOT(%ebx),tmp; movl reg,(tmp)␊ |
| 247 | #define Gstack␉␉␉4␊ |
| 248 | ␊ |
| 249 | #else␉␉␉␉/* ROSE shared libraries */␊ |
| 250 | #define Gpush␊ |
| 251 | #define Gpop␊ |
| 252 | #define Gload␊ |
| 253 | #define Gcall(func)␉␉call *9f; .data; .align ALIGN; 9: .long func; .text␊ |
| 254 | #define Gotoff(lab)␉␉lab␊ |
| 255 | #define Gotoff2(l,r)␉␉l(r)␊ |
| 256 | #define Gotoff3(l,r,s)␉␉l(,r,s)␊ |
| 257 | #define Gaddr(to,lab)␉␉movl 9f,to; .data; .align ALIGN; 9: .long lab; .text␊ |
| 258 | #define Gcmp(lab,reg)␉␉cmpl reg,9f; .data; .align ALIGN; 9: .long lab; .text␊ |
| 259 | #define Gmemload(lab,reg)␉movl 9f,reg; movl (reg),reg; .data; .align ALIGN; 9: .long lab; .text␊ |
| 260 | #define Gmemstore(reg,lab,tmp)␉movl 9f,tmp; movl reg,(tmp); .data; .align ALIGN; 9: .long lab; .text␊ |
| 261 | #define Gstack␉␉␉0␊ |
| 262 | #endif␉/* __ELF__ */␊ |
| 263 | #endif␉/* __SHARED__ */␊ |
| 264 | ␊ |
| 265 | /* Egotoff is not provided, since external symbols should not use @GOTOFF␊ |
| 266 | relocations. */␊ |
| 267 | #define Egcall(func)␉␉Gcall(EXT(func))␊ |
| 268 | #define Egaddr(to,lab)␉␉Gaddr(to,EXT(lab))␊ |
| 269 | #define Egcmp(lab,reg)␉␉Gcmp(EXT(lab),reg)␊ |
| 270 | #define Egmemload(lab,reg)␉Gmemload(EXT(lab),reg)␊ |
| 271 | #define Egmemstore(reg,lab,tmp)␉Gmemstore(reg,EXT(lab),tmp)␊ |
| 272 | ␊ |
| 273 | #define Lgotoff(lab)␉␉Gotoff(LCL(lab))␊ |
| 274 | #define Lgotoff2(l,r)␉␉Gotoff2(LCL(l),r)␊ |
| 275 | #define Lgotoff3(l,r,s)␉␉Gotoff3(LCL(l),r,s)␊ |
| 276 | #define Lgcmp(lab,reg)␉␉Gcmp(LCL(lab),reg)␊ |
| 277 | #define Lgmemload(lab,reg)␉movl Lgotoff(lab),reg␊ |
| 278 | #define Lgmemstore(reg,lab,tmp)␉movl reg,Lgotoff(lab)␊ |
| 279 | ␊ |
| 280 | #ifndef ASSEMBLER␊ |
| 281 | /* These defines are here for .c files that wish to reference global symbols␊ |
| 282 | * within __asm__ statements. ␊ |
| 283 | */␊ |
| 284 | #ifndef __NO_UNDERSCORES__␊ |
| 285 | #define CC_SYM_PREFIX "_"␊ |
| 286 | #else␊ |
| 287 | #define CC_SYM_PREFIX ""␊ |
| 288 | #endif /* __NO_UNDERSCORES__ */␊ |
| 289 | #endif /* ASSEMBLER */␊ |
| 290 | ␊ |
| 291 | /*␊ |
| 292 | * The following macros make calls into C code.␊ |
| 293 | * They dynamically align the stack to 16 bytes.␊ |
| 294 | */␊ |
| 295 | #if defined(__i386__)␊ |
| 296 | /*␊ |
| 297 | * Arguments are moved (not pushed) onto the correctly aligned stack.␊ |
| 298 | * NOTE: ESI is destroyed in the process, and hence cannot␊ |
| 299 | * be directly used as a parameter. Users of this macro must␊ |
| 300 | * independently preserve ESI (a non-volatile) if the routine is␊ |
| 301 | * intended to be called from C, for instance.␊ |
| 302 | */␊ |
| 303 | ␊ |
| 304 | #define CCALL(fn)␉␉␉\␊ |
| 305 | ␉movl␉%esp, %esi␉␉;\␊ |
| 306 | ␉andl␉$0xFFFFFFF0, %esp␉;\␊ |
| 307 | ␉call␉EXT(fn)␉␉␉;\␊ |
| 308 | ␉movl␉%esi, %esp␊ |
| 309 | ␊ |
| 310 | #define CCALL1(fn, arg1)␉␉\␊ |
| 311 | ␉movl␉%esp, %esi␉␉;\␊ |
| 312 | ␉subl␉$4, %esp␉␉;\␊ |
| 313 | ␉andl␉$0xFFFFFFF0, %esp␉;\␊ |
| 314 | ␉movl␉arg1, (%esp)␉␉;\␊ |
| 315 | ␉call␉EXT(fn)␉␉␉;\␊ |
| 316 | ␉movl␉%esi, %esp␊ |
| 317 | ␊ |
| 318 | #define CCALL2(fn, arg1, arg2)␉␉\␊ |
| 319 | ␉movl␉%esp, %esi␉␉;\␊ |
| 320 | ␉subl␉$8, %esp␉␉;\␊ |
| 321 | ␉andl␉$0xFFFFFFF0, %esp␉;\␊ |
| 322 | ␉movl␉arg2, 4(%esp)␉␉;\␊ |
| 323 | ␉movl␉arg1, (%esp)␉␉;\␊ |
| 324 | ␉call␉EXT(fn)␉␉␉;\␊ |
| 325 | ␉movl␉%esi, %esp␊ |
| 326 | ␊ |
| 327 | /* This variant exists to permit adjustment of the stack by "dtrace" */␊ |
| 328 | #define CCALL1WITHSP(fn, arg1)␉␉\␊ |
| 329 | ␉movl␉%esp, %esi␉␉;\␊ |
| 330 | ␉subl␉$12, %esp␉␉;\␊ |
| 331 | ␉andl␉$0xFFFFFFF0, %esp␉;\␊ |
| 332 | ␉movl␉%esi, 8(%esp)␉␉;\␊ |
| 333 | ␉leal␉8(%esp), %esi␉␉;\␊ |
| 334 | ␉movl␉%esi, 4(%esp)␉␉;\␊ |
| 335 | ␉movl␉arg1, (%esp)␉␉;\␊ |
| 336 | ␉call␉EXT(fn)␉␉␉;\␊ |
| 337 | ␉movl␉8(%esp), %esp␊ |
| 338 | ␊ |
| 339 | /*␊ |
| 340 | * CCALL5 is used for callee functions with 3 arguments but␊ |
| 341 | * where arg2 (a3:a2) and arg3 (a5:a4) are 64-bit values.␊ |
| 342 | */␊ |
| 343 | #define CCALL5(fn, a1, a2, a3, a4, a5)␉\␊ |
| 344 | ␉movl␉%esp, %esi␉␉;\␊ |
| 345 | ␉subl␉$20, %esp␉␉;\␊ |
| 346 | ␉andl␉$0xFFFFFFF0, %esp␉;\␊ |
| 347 | ␉movl␉a5, 16(%esp)␉␉;\␊ |
| 348 | ␉movl␉a4, 12(%esp)␉␉;\␊ |
| 349 | ␉movl␉a3, 8(%esp)␉␉;\␊ |
| 350 | ␉movl␉a2, 4(%esp)␉␉;\␊ |
| 351 | ␉movl␉a1, (%esp)␉␉;\␊ |
| 352 | ␉call␉EXT(fn)␉␉␉;\␊ |
| 353 | ␉movl␉%esi, %esp␊ |
| 354 | ␊ |
| 355 | #elif defined(__x86_64__)␊ |
| 356 | ␊ |
| 357 | /* This variant exists to permit adjustment of the stack by "dtrace" */␊ |
| 358 | #define CCALLWITHSP(fn)␉␉␉␉ \␊ |
| 359 | ␉mov␉%rsp, %r12␉␉␉;\␊ |
| 360 | ␉sub␉$8, %rsp␉␉␉;\␊ |
| 361 | ␉and␉$0xFFFFFFFFFFFFFFF0, %rsp␉;\␊ |
| 362 | ␉mov␉%r12, (%rsp)␉␉␉;\␊ |
| 363 | ␉leaq␉(%rsp), %rsi␉␉␉;\␊ |
| 364 | ␉call␉EXT(fn)␉␉␉␉;\␊ |
| 365 | ␉mov␉(%rsp), %rsp␊ |
| 366 | ␉␊ |
| 367 | #define CCALL(fn)␉␉␉␉ \␊ |
| 368 | ␉mov␉%rsp, %r12␉␉␉;\␊ |
| 369 | ␉and␉$0xFFFFFFFFFFFFFFF0, %rsp␉;\␊ |
| 370 | ␉call␉EXT(fn)␉␉␉␉;\␊ |
| 371 | ␉mov␉%r12, %rsp␊ |
| 372 | ␊ |
| 373 | #define CCALL1(fn, arg1) ␉␉␉ \␊ |
| 374 | ␉mov␉arg1, %rdi ␉␉␉;\␊ |
| 375 | ␉CCALL(fn)␊ |
| 376 | ␊ |
| 377 | #define CCALL2(fn, arg1, arg2)␉␉ ␉ \␊ |
| 378 | ␉mov␉arg1, %rdi ␉␉␉;\␊ |
| 379 | ␉CCALL(fn)␊ |
| 380 | ␊ |
| 381 | #define CCALL3(fn, arg1, arg2, arg3) ␉␉ \␊ |
| 382 | ␉mov␉arg1, %rdi ␉␉␉;\␊ |
| 383 | ␉mov␉arg2, %rsi ␉␉␉;\␊ |
| 384 | ␉mov␉arg3, %rdx ␉␉␉;\␊ |
| 385 | ␉CCALL(fn)␊ |
| 386 | ␊ |
| 387 | #else␊ |
| 388 | #error unsupported architecture␊ |
| 389 | #endif␊ |
| 390 | ␊ |
| 391 | #endif /* _I386_ASM_H_ */␊ |
| 392 | |
