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Diffstat (limited to 'circuitpython/py/asmarm.h')
| -rw-r--r-- | circuitpython/py/asmarm.h | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/circuitpython/py/asmarm.h b/circuitpython/py/asmarm.h new file mode 100644 index 0000000..cab4de7 --- /dev/null +++ b/circuitpython/py/asmarm.h @@ -0,0 +1,216 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2014 Fabian Vogt + * SPDX-FileCopyrightText: Copyright (c) 2013, 2014 Damien P. George + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#ifndef MICROPY_INCLUDED_PY_ASMARM_H +#define MICROPY_INCLUDED_PY_ASMARM_H + +#include "py/misc.h" +#include "py/asmbase.h" + +#define ASM_ARM_REG_R0 (0) +#define ASM_ARM_REG_R1 (1) +#define ASM_ARM_REG_R2 (2) +#define ASM_ARM_REG_R3 (3) +#define ASM_ARM_REG_R4 (4) +#define ASM_ARM_REG_R5 (5) +#define ASM_ARM_REG_R6 (6) +#define ASM_ARM_REG_R7 (7) +#define ASM_ARM_REG_R8 (8) +#define ASM_ARM_REG_R9 (9) +#define ASM_ARM_REG_R10 (10) +#define ASM_ARM_REG_R11 (11) +#define ASM_ARM_REG_R12 (12) +#define ASM_ARM_REG_R13 (13) +#define ASM_ARM_REG_R14 (14) +#define ASM_ARM_REG_R15 (15) +#define ASM_ARM_REG_SP (ASM_ARM_REG_R13) +#define ASM_ARM_REG_LR (ASM_ARM_REG_R14) +#define ASM_ARM_REG_PC (ASM_ARM_REG_R15) + +#define ASM_ARM_CC_EQ (0x0 << 28) +#define ASM_ARM_CC_NE (0x1 << 28) +#define ASM_ARM_CC_CS (0x2 << 28) +#define ASM_ARM_CC_CC (0x3 << 28) +#define ASM_ARM_CC_MI (0x4 << 28) +#define ASM_ARM_CC_PL (0x5 << 28) +#define ASM_ARM_CC_VS (0x6 << 28) +#define ASM_ARM_CC_VC (0x7 << 28) +#define ASM_ARM_CC_HI (0x8 << 28) +#define ASM_ARM_CC_LS (0x9 << 28) +#define ASM_ARM_CC_GE (0xa << 28) +#define ASM_ARM_CC_LT (0xb << 28) +#define ASM_ARM_CC_GT (0xc << 28) +#define ASM_ARM_CC_LE (0xd << 28) +#define ASM_ARM_CC_AL (0xe << 28) + +typedef struct _asm_arm_t { + mp_asm_base_t base; + uint push_reglist; + uint stack_adjust; +} asm_arm_t; + +static inline void asm_arm_end_pass(asm_arm_t *as) { + (void)as; +} + +void asm_arm_entry(asm_arm_t *as, int num_locals); +void asm_arm_exit(asm_arm_t *as); + +void asm_arm_bkpt(asm_arm_t *as); + +// mov +void asm_arm_mov_reg_reg(asm_arm_t *as, uint reg_dest, uint reg_src); +size_t asm_arm_mov_reg_i32(asm_arm_t *as, uint rd, int imm); +void asm_arm_mov_reg_i32_optimised(asm_arm_t *as, uint rd, int imm); +void asm_arm_mov_local_reg(asm_arm_t *as, int local_num, uint rd); +void asm_arm_mov_reg_local(asm_arm_t *as, uint rd, int local_num); +void asm_arm_setcc_reg(asm_arm_t *as, uint rd, uint cond); + +// compare +void asm_arm_cmp_reg_i8(asm_arm_t *as, uint rd, int imm); +void asm_arm_cmp_reg_reg(asm_arm_t *as, uint rd, uint rn); + +// arithmetic +void asm_arm_add_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm); +void asm_arm_sub_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm); +void asm_arm_mul_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm); +void asm_arm_and_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm); +void asm_arm_eor_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm); +void asm_arm_orr_reg_reg_reg(asm_arm_t *as, uint rd, uint rn, uint rm); +void asm_arm_mov_reg_local_addr(asm_arm_t *as, uint rd, int local_num); +void asm_arm_mov_reg_pcrel(asm_arm_t *as, uint reg_dest, uint label); +void asm_arm_lsl_reg_reg(asm_arm_t *as, uint rd, uint rs); +void asm_arm_lsr_reg_reg(asm_arm_t *as, uint rd, uint rs); +void asm_arm_asr_reg_reg(asm_arm_t *as, uint rd, uint rs); + +// memory +void asm_arm_ldr_reg_reg(asm_arm_t *as, uint rd, uint rn, uint byte_offset); +void asm_arm_ldrh_reg_reg(asm_arm_t *as, uint rd, uint rn); +void asm_arm_ldrb_reg_reg(asm_arm_t *as, uint rd, uint rn); +void asm_arm_str_reg_reg(asm_arm_t *as, uint rd, uint rm, uint byte_offset); +void asm_arm_strh_reg_reg(asm_arm_t *as, uint rd, uint rm); +void asm_arm_strb_reg_reg(asm_arm_t *as, uint rd, uint rm); +// store to array +void asm_arm_str_reg_reg_reg(asm_arm_t *as, uint rd, uint rm, uint rn); +void asm_arm_strh_reg_reg_reg(asm_arm_t *as, uint rd, uint rm, uint rn); +void asm_arm_strb_reg_reg_reg(asm_arm_t *as, uint rd, uint rm, uint rn); + +// stack +void asm_arm_push(asm_arm_t *as, uint reglist); +void asm_arm_pop(asm_arm_t *as, uint reglist); + +// control flow +void asm_arm_bcc_label(asm_arm_t *as, int cond, uint label); +void asm_arm_b_label(asm_arm_t *as, uint label); +void asm_arm_bl_ind(asm_arm_t *as, uint fun_id, uint reg_temp); +void asm_arm_bx_reg(asm_arm_t *as, uint reg_src); + +// Holds a pointer to mp_fun_table +#define ASM_ARM_REG_FUN_TABLE ASM_ARM_REG_R7 + +#if defined(GENERIC_ASM_API) && GENERIC_ASM_API + +// The following macros provide a (mostly) arch-independent API to +// generate native code, and are used by the native emitter. + +#define ASM_WORD_SIZE (4) + +#define REG_RET ASM_ARM_REG_R0 +#define REG_ARG_1 ASM_ARM_REG_R0 +#define REG_ARG_2 ASM_ARM_REG_R1 +#define REG_ARG_3 ASM_ARM_REG_R2 +#define REG_ARG_4 ASM_ARM_REG_R3 + +#define REG_TEMP0 ASM_ARM_REG_R0 +#define REG_TEMP1 ASM_ARM_REG_R1 +#define REG_TEMP2 ASM_ARM_REG_R2 + +#define REG_LOCAL_1 ASM_ARM_REG_R4 +#define REG_LOCAL_2 ASM_ARM_REG_R5 +#define REG_LOCAL_3 ASM_ARM_REG_R6 +#define REG_LOCAL_NUM (3) + +// Holds a pointer to mp_fun_table +#define REG_FUN_TABLE ASM_ARM_REG_FUN_TABLE + +#define ASM_T asm_arm_t +#define ASM_END_PASS asm_arm_end_pass +#define ASM_ENTRY asm_arm_entry +#define ASM_EXIT asm_arm_exit + +#define ASM_JUMP asm_arm_b_label +#define ASM_JUMP_IF_REG_ZERO(as, reg, label, bool_test) \ + do { \ + asm_arm_cmp_reg_i8(as, reg, 0); \ + asm_arm_bcc_label(as, ASM_ARM_CC_EQ, label); \ + } while (0) +#define ASM_JUMP_IF_REG_NONZERO(as, reg, label, bool_test) \ + do { \ + asm_arm_cmp_reg_i8(as, reg, 0); \ + asm_arm_bcc_label(as, ASM_ARM_CC_NE, label); \ + } while (0) +#define ASM_JUMP_IF_REG_EQ(as, reg1, reg2, label) \ + do { \ + asm_arm_cmp_reg_reg(as, reg1, reg2); \ + asm_arm_bcc_label(as, ASM_ARM_CC_EQ, label); \ + } while (0) +#define ASM_JUMP_REG(as, reg) asm_arm_bx_reg((as), (reg)) +#define ASM_CALL_IND(as, idx) asm_arm_bl_ind(as, idx, ASM_ARM_REG_R3) + +#define ASM_MOV_LOCAL_REG(as, local_num, reg_src) asm_arm_mov_local_reg((as), (local_num), (reg_src)) +#define ASM_MOV_REG_IMM(as, reg_dest, imm) asm_arm_mov_reg_i32_optimised((as), (reg_dest), (imm)) +#define ASM_MOV_REG_IMM_FIX_U16(as, reg_dest, imm) asm_arm_mov_reg_i32((as), (reg_dest), (imm)) +#define ASM_MOV_REG_IMM_FIX_WORD(as, reg_dest, imm) asm_arm_mov_reg_i32((as), (reg_dest), (imm)) +#define ASM_MOV_REG_LOCAL(as, reg_dest, local_num) asm_arm_mov_reg_local((as), (reg_dest), (local_num)) +#define ASM_MOV_REG_REG(as, reg_dest, reg_src) asm_arm_mov_reg_reg((as), (reg_dest), (reg_src)) +#define ASM_MOV_REG_LOCAL_ADDR(as, reg_dest, local_num) asm_arm_mov_reg_local_addr((as), (reg_dest), (local_num)) +#define ASM_MOV_REG_PCREL(as, reg_dest, label) asm_arm_mov_reg_pcrel((as), (reg_dest), (label)) + +#define ASM_LSL_REG_REG(as, reg_dest, reg_shift) asm_arm_lsl_reg_reg((as), (reg_dest), (reg_shift)) +#define ASM_LSR_REG_REG(as, reg_dest, reg_shift) asm_arm_lsr_reg_reg((as), (reg_dest), (reg_shift)) +#define ASM_ASR_REG_REG(as, reg_dest, reg_shift) asm_arm_asr_reg_reg((as), (reg_dest), (reg_shift)) +#define ASM_OR_REG_REG(as, reg_dest, reg_src) asm_arm_orr_reg_reg_reg((as), (reg_dest), (reg_dest), (reg_src)) +#define ASM_XOR_REG_REG(as, reg_dest, reg_src) asm_arm_eor_reg_reg_reg((as), (reg_dest), (reg_dest), (reg_src)) +#define ASM_AND_REG_REG(as, reg_dest, reg_src) asm_arm_and_reg_reg_reg((as), (reg_dest), (reg_dest), (reg_src)) +#define ASM_ADD_REG_REG(as, reg_dest, reg_src) asm_arm_add_reg_reg_reg((as), (reg_dest), (reg_dest), (reg_src)) +#define ASM_SUB_REG_REG(as, reg_dest, reg_src) asm_arm_sub_reg_reg_reg((as), (reg_dest), (reg_dest), (reg_src)) +#define ASM_MUL_REG_REG(as, reg_dest, reg_src) asm_arm_mul_reg_reg_reg((as), (reg_dest), (reg_dest), (reg_src)) + +#define ASM_LOAD_REG_REG(as, reg_dest, reg_base) asm_arm_ldr_reg_reg((as), (reg_dest), (reg_base), 0) +#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)) +#define ASM_LOAD8_REG_REG(as, reg_dest, reg_base) asm_arm_ldrb_reg_reg((as), (reg_dest), (reg_base)) +#define ASM_LOAD16_REG_REG(as, reg_dest, reg_base) asm_arm_ldrh_reg_reg((as), (reg_dest), (reg_base)) +#define ASM_LOAD32_REG_REG(as, reg_dest, reg_base) asm_arm_ldr_reg_reg((as), (reg_dest), (reg_base), 0) + +#define ASM_STORE_REG_REG(as, reg_value, reg_base) asm_arm_str_reg_reg((as), (reg_value), (reg_base), 0) +#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)) +#define ASM_STORE8_REG_REG(as, reg_value, reg_base) asm_arm_strb_reg_reg((as), (reg_value), (reg_base)) +#define ASM_STORE16_REG_REG(as, reg_value, reg_base) asm_arm_strh_reg_reg((as), (reg_value), (reg_base)) +#define ASM_STORE32_REG_REG(as, reg_value, reg_base) asm_arm_str_reg_reg((as), (reg_value), (reg_base), 0) + +#endif // GENERIC_ASM_API + +#endif // MICROPY_INCLUDED_PY_ASMARM_H |