2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Register param constraints and some other register handling tools.
23 * @author Christian Wuerdig
33 #include "ia32_map_regs.h"
34 #include "ia32_new_nodes.h"
35 #include "ia32_architecture.h"
36 #include "gen_ia32_regalloc_if.h"
37 #include "bearch_ia32_t.h"
39 /* this is the order of the assigned registers used for parameter passing */
42 void ia32_build_16bit_reg_map(const char *reg_map[])
44 memset(reg_map, 0, sizeof(reg_map[0]) * N_ia32_gp_REGS);
45 reg_map[REG_GP_EAX] = "ax";
46 reg_map[REG_GP_EBX] = "bx";
47 reg_map[REG_GP_ECX] = "cx";
48 reg_map[REG_GP_EDX] = "dx";
49 reg_map[REG_GP_ESI] = "si";
50 reg_map[REG_GP_EDI] = "di";
51 reg_map[REG_GP_EBP] = "bp";
52 reg_map[REG_GP_ESP] = "sp";
55 void ia32_build_8bit_reg_map(const char *reg_map[])
57 memset(reg_map, 0, sizeof(reg_map[0]) * N_ia32_gp_REGS);
58 reg_map[REG_GP_EAX] = "al";
59 reg_map[REG_GP_EBX] = "bl";
60 reg_map[REG_GP_ECX] = "cl";
61 reg_map[REG_GP_EDX] = "dl";
64 void ia32_build_8bit_reg_map_high(const char *reg_map[])
66 memset(reg_map, 0, sizeof(reg_map[0]) * N_ia32_gp_REGS);
67 reg_map[REG_GP_EAX], "ah";
68 reg_map[REG_GP_EBX], "bh";
69 reg_map[REG_GP_ECX], "ch";
70 reg_map[REG_GP_EDX], "dh";
73 const char *ia32_get_mapped_reg_name(const char *reg_map[], const arch_register_t *reg)
75 const char *name = reg_map[reg->index];
76 assert(reg->reg_class->index == CLASS_ia32_gp);
78 //assert(name && "missing map init?");
80 printf("FIXME: ia32map_regs.c:122: returning fake register name for ia32 with 32 register\n");