1/*
2 * This file is part of the MicroPython project, http://micropython.org/
3 *
4 * The MIT License (MIT)
5 *
6 * Copyright (c) 2014 Fabian Vogt
7 * Copyright (c) 2013, 2014 Damien P. George
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to deal
11 * in the Software without restriction, including without limitation the rights
12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 * copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 * THE SOFTWARE.
26 */
27#ifndef MICROPY_INCLUDED_PY_ASMARM_H
28#define MICROPY_INCLUDED_PY_ASMARM_H
29
30#include "py/misc.h"
31#include "py/asmbase.h"
32
33#define ASM_ARM_REG_R0 (0)
34#define ASM_ARM_REG_R1 (1)
35#define ASM_ARM_REG_R2 (2)
36#define ASM_ARM_REG_R3 (3)
37#define ASM_ARM_REG_R4 (4)
38#define ASM_ARM_REG_R5 (5)
39#define ASM_ARM_REG_R6 (6)
40#define ASM_ARM_REG_R7 (7)
41#define ASM_ARM_REG_R8 (8)
42#define ASM_ARM_REG_R9 (9)
43#define ASM_ARM_REG_R10 (10)
44#define ASM_ARM_REG_R11 (11)
45#define ASM_ARM_REG_R12 (12)
46#define ASM_ARM_REG_R13 (13)
47#define ASM_ARM_REG_R14 (14)
48#define ASM_ARM_REG_R15 (15)
49#define ASM_ARM_REG_SP (ASM_ARM_REG_R13)
50#define ASM_ARM_REG_LR (ASM_ARM_REG_R14)
51#define ASM_ARM_REG_PC (ASM_ARM_REG_R15)
52
53#define ASM_ARM_CC_EQ (0x0 << 28)
54#define ASM_ARM_CC_NE (0x1 << 28)
55#define ASM_ARM_CC_CS (0x2 << 28)
56#define ASM_ARM_CC_CC (0x3 << 28)
57#define ASM_ARM_CC_MI (0x4 << 28)
58#define ASM_ARM_CC_PL (0x5 << 28)
59#define ASM_ARM_CC_VS (0x6 << 28)
60#define ASM_ARM_CC_VC (0x7 << 28)
61#define ASM_ARM_CC_HI (0x8 << 28)
62#define ASM_ARM_CC_LS (0x9 << 28)
63#define ASM_ARM_CC_GE (0xa << 28)
64#define ASM_ARM_CC_LT (0xb << 28)
65#define ASM_ARM_CC_GT (0xc << 28)
66#define ASM_ARM_CC_LE (0xd << 28)
67#define ASM_ARM_CC_AL (0xe << 28)
68
69typedef struct _asm_arm_t {
70 mp_asm_base_t base;
71 uint push_reglist;
72 uint stack_adjust;
73} asm_arm_t;
74
75void asm_arm_end_pass(asm_arm_t *as);
76
77void asm_arm_entry(asm_arm_t *as, int num_locals);
78void asm_arm_exit(asm_arm_t *as);
79
80void asm_arm_bkpt(asm_arm_t *as);
81
82// mov
83void asm_arm_mov_reg_reg(asm_arm_t *as, uint reg_dest, uint reg_src);
84size_t asm_arm_mov_reg_i32(asm_arm_t *as, uint rd, int imm);
85void asm_arm_mov_reg_i32_optimised(asm_arm_t *as, uint rd, int imm);
86void asm_arm_mov_local_reg(asm_arm_t *as, int local_num, uint rd);
87void asm_arm_mov_reg_local(asm_arm_t *as, uint rd, int local_num);
88void asm_arm_setcc_reg(asm_arm_t *as, uint rd, uint cond);
89
90// compare
91void asm_arm_cmp_reg_i8(asm_arm_t *as, uint rd, int imm);
92void asm_arm_cmp_reg_reg(asm_arm_t *as, uint rd, uint rn);
93
94// arithmetic
95void asm_arm_add_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm);
96void asm_arm_sub_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm);
97void asm_arm_mul_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm);
98void asm_arm_and_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm);
99void asm_arm_eor_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm);
100void asm_arm_orr_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm);
101void asm_arm_mov_reg_local_addr(asm_arm_t *as, uint rd, int local_num);
102void asm_arm_mov_reg_pcrel(asm_arm_t *as, uint reg_dest, uint label);
103void asm_arm_lsl_reg_reg(asm_arm_t *as, uint rd, uint rs);
104void asm_arm_lsr_reg_reg(asm_arm_t *as, uint rd, uint rs);
105void asm_arm_asr_reg_reg(asm_arm_t *as, uint rd, uint rs);
106
107// memory
108void asm_arm_ldr_reg_reg(asm_arm_t *as, uint rd, uint rn, uint byte_offset);
109void asm_arm_ldrh_reg_reg(asm_arm_t *as, uint rd, uint rn);
110void asm_arm_ldrb_reg_reg(asm_arm_t *as, uint rd, uint rn);
111void asm_arm_str_reg_reg(asm_arm_t *as, uint rd, uint rm, uint byte_offset);
112void asm_arm_strh_reg_reg(asm_arm_t *as, uint rd, uint rm);
113void asm_arm_strb_reg_reg(asm_arm_t *as, uint rd, uint rm);
114// store to array
115void asm_arm_str_reg_reg_reg(asm_arm_t *as, uint rd, uint rm, uint rn);
116void asm_arm_strh_reg_reg_reg(asm_arm_t *as, uint rd, uint rm, uint rn);
117void asm_arm_strb_reg_reg_reg(asm_arm_t *as, uint rd, uint rm, uint rn);
118
119// stack
120void asm_arm_push(asm_arm_t *as, uint reglist);
121void asm_arm_pop(asm_arm_t *as, uint reglist);
122
123// control flow
124void asm_arm_bcc_label(asm_arm_t *as, int cond, uint label);
125void asm_arm_b_label(asm_arm_t *as, uint label);
126void asm_arm_bl_ind(asm_arm_t *as, uint fun_id, uint reg_temp);
127void asm_arm_bx_reg(asm_arm_t *as, uint reg_src);
128
129// Holds a pointer to mp_fun_table
130#define ASM_ARM_REG_FUN_TABLE ASM_ARM_REG_R7
131
132#if GENERIC_ASM_API
133
134// The following macros provide a (mostly) arch-independent API to
135// generate native code, and are used by the native emitter.
136
137#define ASM_WORD_SIZE (4)
138
139#define REG_RET ASM_ARM_REG_R0
140#define REG_ARG_1 ASM_ARM_REG_R0
141#define REG_ARG_2 ASM_ARM_REG_R1
142#define REG_ARG_3 ASM_ARM_REG_R2
143#define REG_ARG_4 ASM_ARM_REG_R3
144
145#define REG_TEMP0 ASM_ARM_REG_R0
146#define REG_TEMP1 ASM_ARM_REG_R1
147#define REG_TEMP2 ASM_ARM_REG_R2
148
149#define REG_LOCAL_1 ASM_ARM_REG_R4
150#define REG_LOCAL_2 ASM_ARM_REG_R5
151#define REG_LOCAL_3 ASM_ARM_REG_R6
152#define REG_LOCAL_NUM (3)
153
154// Holds a pointer to mp_fun_table
155#define REG_FUN_TABLE ASM_ARM_REG_FUN_TABLE
156
157#define ASM_T asm_arm_t
158#define ASM_END_PASS asm_arm_end_pass
159#define ASM_ENTRY asm_arm_entry
160#define ASM_EXIT asm_arm_exit
161
162#define ASM_JUMP asm_arm_b_label
163#define ASM_JUMP_IF_REG_ZERO(as, reg, label, bool_test) \
164 do { \
165 asm_arm_cmp_reg_i8(as, reg, 0); \
166 asm_arm_bcc_label(as, ASM_ARM_CC_EQ, label); \
167 } while (0)
168#define ASM_JUMP_IF_REG_NONZERO(as, reg, label, bool_test) \
169 do { \
170 asm_arm_cmp_reg_i8(as, reg, 0); \
171 asm_arm_bcc_label(as, ASM_ARM_CC_NE, label); \
172 } while (0)
173#define ASM_JUMP_IF_REG_EQ(as, reg1, reg2, label) \
174 do { \
175 asm_arm_cmp_reg_reg(as, reg1, reg2); \
176 asm_arm_bcc_label(as, ASM_ARM_CC_EQ, label); \
177 } while (0)
178#define ASM_JUMP_REG(as, reg) asm_arm_bx_reg((as), (reg))
179#define ASM_CALL_IND(as, idx) asm_arm_bl_ind(as, idx, ASM_ARM_REG_R3)
180
181#define ASM_MOV_LOCAL_REG(as, local_num, reg_src) asm_arm_mov_local_reg((as), (local_num), (reg_src))
182#define ASM_MOV_REG_IMM(as, reg_dest, imm) asm_arm_mov_reg_i32_optimised((as), (reg_dest), (imm))
183#define ASM_MOV_REG_IMM_FIX_U16(as, reg_dest, imm) asm_arm_mov_reg_i32((as), (reg_dest), (imm))
184#define ASM_MOV_REG_IMM_FIX_WORD(as, reg_dest, imm) asm_arm_mov_reg_i32((as), (reg_dest), (imm))
185#define ASM_MOV_REG_LOCAL(as, reg_dest, local_num) asm_arm_mov_reg_local((as), (reg_dest), (local_num))
186#define ASM_MOV_REG_REG(as, reg_dest, reg_src) asm_arm_mov_reg_reg((as), (reg_dest), (reg_src))
187#define ASM_MOV_REG_LOCAL_ADDR(as, reg_dest, local_num) asm_arm_mov_reg_local_addr((as), (reg_dest), (local_num))
188#define ASM_MOV_REG_PCREL(as, reg_dest, label) asm_arm_mov_reg_pcrel((as), (reg_dest), (label))
189
190#define ASM_LSL_REG_REG(as, reg_dest, reg_shift) asm_arm_lsl_reg_reg((as), (reg_dest), (reg_shift))
191#define ASM_LSR_REG_REG(as, reg_dest, reg_shift) asm_arm_lsr_reg_reg((as), (reg_dest), (reg_shift))
192#define ASM_ASR_REG_REG(as, reg_dest, reg_shift) asm_arm_asr_reg_reg((as), (reg_dest), (reg_shift))
193#define ASM_OR_REG_REG(as, reg_dest, reg_src) asm_arm_orr_reg_reg_reg((as), (reg_dest), (reg_dest), (reg_src))
194#define ASM_XOR_REG_REG(as, reg_dest, reg_src) asm_arm_eor_reg_reg_reg((as), (reg_dest), (reg_dest), (reg_src))
195#define ASM_AND_REG_REG(as, reg_dest, reg_src) asm_arm_and_reg_reg_reg((as), (reg_dest), (reg_dest), (reg_src))
196#define ASM_ADD_REG_REG(as, reg_dest, reg_src) asm_arm_add_reg_reg_reg((as), (reg_dest), (reg_dest), (reg_src))
197#define ASM_SUB_REG_REG(as, reg_dest, reg_src) asm_arm_sub_reg_reg_reg((as), (reg_dest), (reg_dest), (reg_src))
198#define ASM_MUL_REG_REG(as, reg_dest, reg_src) asm_arm_mul_reg_reg_reg((as), (reg_dest), (reg_dest), (reg_src))
199
200#define ASM_LOAD_REG_REG(as, reg_dest, reg_base) asm_arm_ldr_reg_reg((as), (reg_dest), (reg_base), 0)
201#define ASM_LOAD_REG_REG_OFFSET(as, reg_dest, reg_base, word_offset) asm_arm_ldr_reg_reg((as), (reg_dest), (reg_base), 4 * (word_offset))
202#define ASM_LOAD8_REG_REG(as, reg_dest, reg_base) asm_arm_ldrb_reg_reg((as), (reg_dest), (reg_base))
203#define ASM_LOAD16_REG_REG(as, reg_dest, reg_base) asm_arm_ldrh_reg_reg((as), (reg_dest), (reg_base))
204#define ASM_LOAD32_REG_REG(as, reg_dest, reg_base) asm_arm_ldr_reg_reg((as), (reg_dest), (reg_base), 0)
205
206#define ASM_STORE_REG_REG(as, reg_value, reg_base) asm_arm_str_reg_reg((as), (reg_value), (reg_base), 0)
207#define ASM_STORE_REG_REG_OFFSET(as, reg_dest, reg_base, word_offset) asm_arm_str_reg_reg((as), (reg_dest), (reg_base), 4 * (word_offset))
208#define ASM_STORE8_REG_REG(as, reg_value, reg_base) asm_arm_strb_reg_reg((as), (reg_value), (reg_base))
209#define ASM_STORE16_REG_REG(as, reg_value, reg_base) asm_arm_strh_reg_reg((as), (reg_value), (reg_base))
210#define ASM_STORE32_REG_REG(as, reg_value, reg_base) asm_arm_str_reg_reg((as), (reg_value), (reg_base), 0)
211
212#endif // GENERIC_ASM_API
213
214#endif // MICROPY_INCLUDED_PY_ASMARM_H
215