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/** This file is part of the MicroPython project, http://micropython.org/** The MIT License (MIT)** Copyright (c) 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_ASMX86_H#define MICROPY_INCLUDED_PY_ASMX86_H#include "py/mpconfig.h"#include "py/misc.h"#include "py/asmbase.h"// x86 cdecl calling convention is:// - args passed on the stack in reverse order// - return value in EAX// - caller cleans up the stack after a call// - stack must be aligned to 16-byte boundary before all calls// - EAX, ECX, EDX are caller-save// - EBX, ESI, EDI, EBP, ESP, EIP are callee-save// In the functions below, argument order follows x86 docs and generally// the destination is the first argument.// NOTE: this is a change from the old convention used in this file and// some functions still use the old (reverse) convention.#define ASM_X86_REG_EAX (0)#define ASM_X86_REG_ECX (1)#define ASM_X86_REG_EDX (2)#define ASM_X86_REG_EBX (3)#define ASM_X86_REG_ESP (4)#define ASM_X86_REG_EBP (5)#define ASM_X86_REG_ESI (6)#define ASM_X86_REG_EDI (7)// x86 passes values on the stack, but the emitter is register based, so we need// to define registers that can temporarily hold the function arguments. They// need to be defined here so that asm_x86_call_ind can push them onto the stack// before the call.#define ASM_X86_REG_ARG_1 ASM_X86_REG_EAX#define ASM_X86_REG_ARG_2 ASM_X86_REG_ECX#define ASM_X86_REG_ARG_3 ASM_X86_REG_EDX#define ASM_X86_REG_ARG_4 ASM_X86_REG_EBX// condition codes, used for jcc and setcc (despite their j-name!)#define ASM_X86_CC_JB (0x2) // below, unsigned#define ASM_X86_CC_JAE (0x3) // above or equal, unsigned#define ASM_X86_CC_JZ (0x4)#define ASM_X86_CC_JE (0x4)#define ASM_X86_CC_JNZ (0x5)#define ASM_X86_CC_JNE (0x5)#define ASM_X86_CC_JBE (0x6) // below or equal, unsigned#define ASM_X86_CC_JA (0x7) // above, unsigned#define ASM_X86_CC_JL (0xc) // less, signed#define ASM_X86_CC_JGE (0xd) // greater or equal, signed#define ASM_X86_CC_JLE (0xe) // less or equal, signed#define ASM_X86_CC_JG (0xf) // greater, signedtypedef struct _asm_x86_t {mp_asm_base_t base;int num_locals;} asm_x86_t;static inline void asm_x86_end_pass(asm_x86_t *as) {(void)as;}void asm_x86_mov_r32_r32(asm_x86_t *as, int dest_r32, int src_r32);size_t asm_x86_mov_i32_to_r32(asm_x86_t *as, int32_t src_i32, int dest_r32);void asm_x86_mov_r8_to_mem8(asm_x86_t *as, int src_r32, int dest_r32, int dest_disp);void asm_x86_mov_r16_to_mem16(asm_x86_t *as, int src_r32, int dest_r32, int dest_disp);void asm_x86_mov_r32_to_mem32(asm_x86_t *as, int src_r32, int dest_r32, int dest_disp);void asm_x86_mov_mem8_to_r32zx(asm_x86_t *as, int src_r32, int src_disp, int dest_r32);void asm_x86_mov_mem16_to_r32zx(asm_x86_t *as, int src_r32, int src_disp, int dest_r32);void asm_x86_mov_mem32_to_r32(asm_x86_t *as, int src_r32, int src_disp, int dest_r32);void asm_x86_and_r32_r32(asm_x86_t *as, int dest_r32, int src_r32);void asm_x86_or_r32_r32(asm_x86_t *as, int dest_r32, int src_r32);void asm_x86_xor_r32_r32(asm_x86_t *as, int dest_r32, int src_r32);void asm_x86_shl_r32_cl(asm_x86_t *as, int dest_r32);void asm_x86_shr_r32_cl(asm_x86_t *as, int dest_r32);void asm_x86_sar_r32_cl(asm_x86_t *as, int dest_r32);void asm_x86_add_r32_r32(asm_x86_t *as, int dest_r32, int src_r32);void asm_x86_sub_r32_r32(asm_x86_t *as, int dest_r32, int src_r32);void asm_x86_mul_r32_r32(asm_x86_t *as, int dest_r32, int src_r32);void asm_x86_cmp_r32_with_r32(asm_x86_t *as, int src_r32_a, int src_r32_b);void asm_x86_test_r8_with_r8(asm_x86_t *as, int src_r32_a, int src_r32_b);void asm_x86_test_r32_with_r32(asm_x86_t *as, int src_r32_a, int src_r32_b);void asm_x86_setcc_r8(asm_x86_t *as, mp_uint_t jcc_type, int dest_r8);void asm_x86_jmp_reg(asm_x86_t *as, int src_r86);void asm_x86_jmp_label(asm_x86_t *as, mp_uint_t label);void asm_x86_jcc_label(asm_x86_t *as, mp_uint_t jcc_type, mp_uint_t label);void asm_x86_entry(asm_x86_t *as, int num_locals);void asm_x86_exit(asm_x86_t *as);void asm_x86_mov_arg_to_r32(asm_x86_t *as, int src_arg_num, int dest_r32);void asm_x86_mov_local_to_r32(asm_x86_t *as, int src_local_num, int dest_r32);void asm_x86_mov_r32_to_local(asm_x86_t *as, int src_r32, int dest_local_num);void asm_x86_mov_local_addr_to_r32(asm_x86_t *as, int local_num, int dest_r32);void asm_x86_mov_reg_pcrel(asm_x86_t *as, int dest_r64, mp_uint_t label);void asm_x86_call_ind(asm_x86_t *as, size_t fun_id, mp_uint_t n_args, int temp_r32);// Holds a pointer to mp_fun_table#define ASM_X86_REG_FUN_TABLE ASM_X86_REG_EBP#if 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_X86_REG_EAX#define REG_ARG_1 ASM_X86_REG_ARG_1#define REG_ARG_2 ASM_X86_REG_ARG_2#define REG_ARG_3 ASM_X86_REG_ARG_3#define REG_ARG_4 ASM_X86_REG_ARG_4// caller-save, so can be used as temporaries#define REG_TEMP0 ASM_X86_REG_EAX#define REG_TEMP1 ASM_X86_REG_ECX#define REG_TEMP2 ASM_X86_REG_EDX// callee-save, so can be used as locals#define REG_LOCAL_1 ASM_X86_REG_EBX#define REG_LOCAL_2 ASM_X86_REG_ESI#define REG_LOCAL_3 ASM_X86_REG_EDI#define REG_LOCAL_NUM (3)// Holds a pointer to mp_fun_table#define REG_FUN_TABLE ASM_X86_REG_FUN_TABLE#define ASM_T asm_x86_t#define ASM_END_PASS asm_x86_end_pass#define ASM_ENTRY asm_x86_entry#define ASM_EXIT asm_x86_exit#define ASM_JUMP asm_x86_jmp_label#define ASM_JUMP_IF_REG_ZERO(as, reg, label, bool_test) \do { \if (bool_test) { \asm_x86_test_r8_with_r8(as, reg, reg); \} else { \asm_x86_test_r32_with_r32(as, reg, reg); \} \asm_x86_jcc_label(as, ASM_X86_CC_JZ, label); \} while (0)#define ASM_JUMP_IF_REG_NONZERO(as, reg, label, bool_test) \do { \if (bool_test) { \asm_x86_test_r8_with_r8(as, reg, reg); \} else { \asm_x86_test_r32_with_r32(as, reg, reg); \} \asm_x86_jcc_label(as, ASM_X86_CC_JNZ, label); \} while (0)#define ASM_JUMP_IF_REG_EQ(as, reg1, reg2, label) \do { \asm_x86_cmp_r32_with_r32(as, reg1, reg2); \asm_x86_jcc_label(as, ASM_X86_CC_JE, label); \} while (0)#define ASM_JUMP_REG(as, reg) asm_x86_jmp_reg((as), (reg))#define ASM_CALL_IND(as, idx) asm_x86_call_ind(as, idx, mp_f_n_args[idx], ASM_X86_REG_EAX)#define ASM_MOV_LOCAL_REG(as, local_num, reg_src) asm_x86_mov_r32_to_local((as), (reg_src), (local_num))#define ASM_MOV_REG_IMM(as, reg_dest, imm) asm_x86_mov_i32_to_r32((as), (imm), (reg_dest))#define ASM_MOV_REG_IMM_FIX_U16(as, reg_dest, imm) asm_x86_mov_i32_to_r32((as), (imm), (reg_dest))#define ASM_MOV_REG_IMM_FIX_WORD(as, reg_dest, imm) asm_x86_mov_i32_to_r32((as), (imm), (reg_dest))#define ASM_MOV_REG_LOCAL(as, reg_dest, local_num) asm_x86_mov_local_to_r32((as), (local_num), (reg_dest))#define ASM_MOV_REG_REG(as, reg_dest, reg_src) asm_x86_mov_r32_r32((as), (reg_dest), (reg_src))#define ASM_MOV_REG_LOCAL_ADDR(as, reg_dest, local_num) asm_x86_mov_local_addr_to_r32((as), (local_num), (reg_dest))#define ASM_MOV_REG_PCREL(as, reg_dest, label) asm_x86_mov_reg_pcrel((as), (reg_dest), (label))#define ASM_LSL_REG(as, reg) asm_x86_shl_r32_cl((as), (reg))#define ASM_LSR_REG(as, reg) asm_x86_shr_r32_cl((as), (reg))#define ASM_ASR_REG(as, reg) asm_x86_sar_r32_cl((as), (reg))#define ASM_OR_REG_REG(as, reg_dest, reg_src) asm_x86_or_r32_r32((as), (reg_dest), (reg_src))#define ASM_XOR_REG_REG(as, reg_dest, reg_src) asm_x86_xor_r32_r32((as), (reg_dest), (reg_src))#define ASM_AND_REG_REG(as, reg_dest, reg_src) asm_x86_and_r32_r32((as), (reg_dest), (reg_src))#define ASM_ADD_REG_REG(as, reg_dest, reg_src) asm_x86_add_r32_r32((as), (reg_dest), (reg_src))#define ASM_SUB_REG_REG(as, reg_dest, reg_src) asm_x86_sub_r32_r32((as), (reg_dest), (reg_src))#define ASM_MUL_REG_REG(as, reg_dest, reg_src) asm_x86_mul_r32_r32((as), (reg_dest), (reg_src))#define ASM_LOAD_REG_REG(as, reg_dest, reg_base) asm_x86_mov_mem32_to_r32((as), (reg_base), 0, (reg_dest))#define ASM_LOAD_REG_REG_OFFSET(as, reg_dest, reg_base, word_offset) asm_x86_mov_mem32_to_r32((as), (reg_base), 4 * (word_offset), (reg_dest))#define ASM_LOAD8_REG_REG(as, reg_dest, reg_base) asm_x86_mov_mem8_to_r32zx((as), (reg_base), 0, (reg_dest))#define ASM_LOAD16_REG_REG(as, reg_dest, reg_base) asm_x86_mov_mem16_to_r32zx((as), (reg_base), 0, (reg_dest))#define ASM_LOAD32_REG_REG(as, reg_dest, reg_base) asm_x86_mov_mem32_to_r32((as), (reg_base), 0, (reg_dest))#define ASM_STORE_REG_REG(as, reg_src, reg_base) asm_x86_mov_r32_to_mem32((as), (reg_src), (reg_base), 0)#define ASM_STORE_REG_REG_OFFSET(as, reg_src, reg_base, word_offset) asm_x86_mov_r32_to_mem32((as), (reg_src), (reg_base), 4 * (word_offset))#define ASM_STORE8_REG_REG(as, reg_src, reg_base) asm_x86_mov_r8_to_mem8((as), (reg_src), (reg_base), 0)#define ASM_STORE16_REG_REG(as, reg_src, reg_base) asm_x86_mov_r16_to_mem16((as), (reg_src), (reg_base), 0)#define ASM_STORE32_REG_REG(as, reg_src, reg_base) asm_x86_mov_r32_to_mem32((as), (reg_src), (reg_base), 0)#endif // GENERIC_ASM_API#endif // MICROPY_INCLUDED_PY_ASMX86_H
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