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Commit 61259958 authored by Damien George's avatar Damien George
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py: Factor out common code from assemblers into asmbase.[ch]. 

All assemblers should "derive" from mp_asm_base_t.
parent 21e1703d
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py/asmarm.c
View file @ 61259958
......@@ -38,50 +38,6 @@
#define SIGNED_FIT24(x) (((x) & 0xff800000) == 0) || (((x) & 0xff000000) == 0xff000000)
struct _asm_arm_t {
uint pass;
mp_uint_t code_offset;
mp_uint_t code_size;
byte *code_base;
byte dummy_data[4];
mp_uint_t max_num_labels;
mp_uint_t *label_offsets;
uint push_reglist;
uint stack_adjust;
};
asm_arm_t *asm_arm_new(uint max_num_labels) {
asm_arm_t *as;
as = m_new0(asm_arm_t, 1);
as->max_num_labels = max_num_labels;
as->label_offsets = m_new(mp_uint_t, max_num_labels);
return as;
}
void asm_arm_free(asm_arm_t *as, bool free_code) {
if (free_code) {
MP_PLAT_FREE_EXEC(as->code_base, as->code_size);
}
m_del(mp_uint_t, as->label_offsets, as->max_num_labels);
m_del_obj(asm_arm_t, as);
}
void asm_arm_start_pass(asm_arm_t *as, uint pass) {
if (pass == ASM_ARM_PASS_COMPUTE) {
memset(as->label_offsets, -1, as->max_num_labels * sizeof(mp_uint_t));
} else if (pass == ASM_ARM_PASS_EMIT) {
MP_PLAT_ALLOC_EXEC(as->code_offset, (void**)&as->code_base, &as->code_size);
if (as->code_base == NULL) {
assert(0);
}
}
as->pass = pass;
as->code_offset = 0;
}
void asm_arm_end_pass(asm_arm_t *as) {
if (as->pass == ASM_ARM_PASS_EMIT) {
#ifdef __arm__
......@@ -97,32 +53,6 @@ void asm_arm_end_pass(asm_arm_t *as) {
}
}
// all functions must go through this one to emit bytes
// if as->pass < ASM_ARM_PASS_EMIT, then this function only returns a buffer of 4 bytes length
STATIC byte *asm_arm_get_cur_to_write_bytes(asm_arm_t *as, int num_bytes_to_write) {
if (as->pass < ASM_ARM_PASS_EMIT) {
as->code_offset += num_bytes_to_write;
return as->dummy_data;
} else {
assert(as->code_offset + num_bytes_to_write <= as->code_size);
byte *c = as->code_base + as->code_offset;
as->code_offset += num_bytes_to_write;
return c;
}
}
uint asm_arm_get_code_pos(asm_arm_t *as) {
return as->code_offset;
}
uint asm_arm_get_code_size(asm_arm_t *as) {
return as->code_size;
}
void *asm_arm_get_code(asm_arm_t *as) {
return as->code_base;
}
// Insert word into instruction flow
STATIC void emit(asm_arm_t *as, uint op) {
*(uint*)asm_arm_get_cur_to_write_bytes(as, 4) = op;
......@@ -263,35 +193,6 @@ void asm_arm_pop(asm_arm_t *as, uint reglist) {
emit_al(as, asm_arm_op_pop(reglist));
}
void asm_arm_label_assign(asm_arm_t *as, uint label) {
assert(label < as->max_num_labels);
if (as->pass < ASM_ARM_PASS_EMIT) {
// assign label offset
assert(as->label_offsets[label] == -1);
as->label_offsets[label] = as->code_offset;
} else {
// ensure label offset has not changed from PASS_COMPUTE to PASS_EMIT
assert(as->label_offsets[label] == as->code_offset);
}
}
void asm_arm_align(asm_arm_t* as, uint align) {
// TODO fill unused data with NOPs?
as->code_offset = (as->code_offset + align - 1) & (~(align - 1));
}
void asm_arm_data(asm_arm_t* as, uint bytesize, uint val) {
byte *c = asm_arm_get_cur_to_write_bytes(as, bytesize);
// only write to the buffer in the emit pass (otherwise we overflow dummy_data)
if (as->pass == ASM_ARM_PASS_EMIT) {
// little endian
for (uint i = 0; i < bytesize; i++) {
*c++ = val;
val >>= 8;
}
}
}
void asm_arm_mov_reg_reg(asm_arm_t *as, uint reg_dest, uint reg_src) {
emit_al(as, asm_arm_op_mov_reg(reg_dest, reg_src));
}
......
py/asmarm.h
View file @ 61259958
......@@ -28,9 +28,7 @@
#define __MICROPY_INCLUDED_PY_ASMARM_H__
#include "py/misc.h"
#define ASM_ARM_PASS_COMPUTE (1)
#define ASM_ARM_PASS_EMIT (2)
#include "py/asmbase.h"
#define ASM_ARM_REG_R0 (0)
#define ASM_ARM_REG_R1 (1)
......@@ -68,22 +66,16 @@
#define ASM_ARM_CC_LE (0xd << 28)
#define ASM_ARM_CC_AL (0xe << 28)
typedef struct _asm_arm_t asm_arm_t;
typedef struct _asm_arm_t {
mp_asm_base_t base;
uint push_reglist;
uint stack_adjust;
} asm_arm_t;
asm_arm_t *asm_arm_new(uint max_num_labels);
void asm_arm_free(asm_arm_t *as, bool free_code);
void asm_arm_start_pass(asm_arm_t *as, uint pass);
void asm_arm_end_pass(asm_arm_t *as);
uint asm_arm_get_code_pos(asm_arm_t *as);
uint asm_arm_get_code_size(asm_arm_t *as);
void *asm_arm_get_code(asm_arm_t *as);
void asm_arm_entry(asm_arm_t *as, int num_locals);
void asm_arm_exit(asm_arm_t *as);
void asm_arm_label_assign(asm_arm_t *as, uint label);
void asm_arm_align(asm_arm_t* as, uint align);
void asm_arm_data(asm_arm_t* as, uint bytesize, uint val);
void asm_arm_bkpt(asm_arm_t *as);
......
py/asmbase.c 0 → 100644
View file @ 61259958
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016 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.
*/
#include <assert.h>
#include <string.h>
#include "py/obj.h"
#include "py/misc.h"
#include "py/asmbase.h"
#if MICROPY_EMIT_NATIVE || MICROPY_EMIT_INLINE_THUMB
void mp_asm_base_init(mp_asm_base_t *as, size_t max_num_labels) {
as->max_num_labels = max_num_labels;
as->label_offsets = m_new(size_t, max_num_labels);
}
void mp_asm_base_deinit(mp_asm_base_t *as, bool free_code) {
if (free_code) {
MP_PLAT_FREE_EXEC(as->code_base, as->code_size);
}
m_del(size_t, as->label_offsets, as->max_num_labels);
}
void mp_asm_base_start_pass(mp_asm_base_t *as, int pass) {
if (pass == MP_ASM_PASS_COMPUTE) {
// reset all labels
memset(as->label_offsets, -1, as->max_num_labels * sizeof(size_t));
} else if (pass == MP_ASM_PASS_EMIT) {
// allocating executable RAM is platform specific
MP_PLAT_ALLOC_EXEC(as->code_offset, (void**)&as->code_base, &as->code_size);
assert(as->code_base != NULL);
}
as->pass = pass;
as->code_offset = 0;
}
// all functions must go through this one to emit bytes
// if as->pass < MP_ASM_PASS_EMIT, then this function returns dummy_data
uint8_t *mp_asm_base_get_cur_to_write_bytes(mp_asm_base_t *as, size_t num_bytes_to_write) {
if (as->pass < MP_ASM_PASS_EMIT) {
as->code_offset += num_bytes_to_write;
return as->dummy_data;
} else {
assert(as->code_offset + num_bytes_to_write <= as->code_size);
uint8_t *c = as->code_base + as->code_offset;
as->code_offset += num_bytes_to_write;
return c;
}
}
void mp_asm_base_label_assign(mp_asm_base_t *as, size_t label) {
assert(label < as->max_num_labels);
if (as->pass < MP_ASM_PASS_EMIT) {
// assign label offset
assert(as->label_offsets[label] == (size_t)-1);
as->label_offsets[label] = as->code_offset;
} else {
// ensure label offset has not changed from PASS_COMPUTE to PASS_EMIT
assert(as->label_offsets[label] == as->code_offset);
}
}
// align must be a multiple of 2
void mp_asm_base_align(mp_asm_base_t* as, unsigned int align) {
as->code_offset = (as->code_offset + align - 1) & (~(align - 1));
}
// this function assumes a little endian machine
void mp_asm_base_data(mp_asm_base_t* as, unsigned int bytesize, uintptr_t val) {
uint8_t *c = mp_asm_base_get_cur_to_write_bytes(as, bytesize);
// only write to the buffer in the emit pass (otherwise we may overflow dummy_data)
if (as->pass == MP_ASM_PASS_EMIT) {
for (unsigned int i = 0; i < bytesize; i++) {
*c++ = val;
val >>= 8;
}
}
}
#endif // MICROPY_EMIT_NATIVE || MICROPY_EMIT_INLINE_THUMB
py/asmbase.h 0 → 100644
View file @ 61259958
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016 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_ASMBASE_H
#define MICROPY_INCLUDED_PY_ASMBASE_H
#include <stdint.h>
#include <stdbool.h>
#define MP_ASM_PASS_COMPUTE (1)
#define MP_ASM_PASS_EMIT (2)
typedef struct _mp_asm_base_t {
int pass;
size_t code_offset;
size_t code_size;
uint8_t *code_base;
size_t max_num_labels;
size_t *label_offsets;
// must be last in struct
uint8_t dummy_data[4];
} mp_asm_base_t;
void mp_asm_base_init(mp_asm_base_t *as, size_t max_num_labels);
void mp_asm_base_deinit(mp_asm_base_t *as, bool free_code);
void mp_asm_base_start_pass(mp_asm_base_t *as, int pass);
uint8_t *mp_asm_base_get_cur_to_write_bytes(mp_asm_base_t *as, size_t num_bytes_to_write);
void mp_asm_base_label_assign(mp_asm_base_t *as, size_t label);
void mp_asm_base_align(mp_asm_base_t* as, unsigned int align);
void mp_asm_base_data(mp_asm_base_t* as, unsigned int bytesize, uintptr_t val);
static inline size_t mp_asm_base_get_code_pos(mp_asm_base_t *as) {
return as->code_offset;
}
static inline size_t mp_asm_base_get_code_size(mp_asm_base_t *as) {
return as->code_size;
}
static inline void *mp_asm_base_get_code(mp_asm_base_t *as) {
return as->code_base;
}
#endif // MICROPY_INCLUDED_PY_ASMBASE_H
py/asmthumb.c
View file @ 61259958
......@@ -42,49 +42,8 @@
#define SIGNED_FIT12(x) (((x) & 0xfffff800) == 0) || (((x) & 0xfffff800) == 0xfffff800)
#define SIGNED_FIT23(x) (((x) & 0xffc00000) == 0) || (((x) & 0xffc00000) == 0xffc00000)
struct _asm_thumb_t {
mp_uint_t pass;
mp_uint_t code_offset;
mp_uint_t code_size;
byte *code_base;
byte dummy_data[4];
mp_uint_t max_num_labels;
mp_uint_t *label_offsets;
mp_uint_t push_reglist;
mp_uint_t stack_adjust;
};
asm_thumb_t *asm_thumb_new(uint max_num_labels) {
asm_thumb_t *as;
as = m_new0(asm_thumb_t, 1);
as->max_num_labels = max_num_labels;
as->label_offsets = m_new(mp_uint_t, max_num_labels);
return as;
}
void asm_thumb_free(asm_thumb_t *as, bool free_code) {
if (free_code) {
MP_PLAT_FREE_EXEC(as->code_base, as->code_size);
}
m_del(mp_uint_t, as->label_offsets, as->max_num_labels);
m_del_obj(asm_thumb_t, as);
}
void asm_thumb_start_pass(asm_thumb_t *as, uint pass) {
if (pass == ASM_THUMB_PASS_COMPUTE) {
memset(as->label_offsets, -1, as->max_num_labels * sizeof(mp_uint_t));
} else if (pass == ASM_THUMB_PASS_EMIT) {
MP_PLAT_ALLOC_EXEC(as->code_offset, (void**)&as->code_base, &as->code_size);
if (as->code_base == NULL) {
assert(0);
}
//printf("code_size: %u\n", as->code_size);
}
as->pass = pass;
as->code_offset = 0;
static inline byte *asm_thumb_get_cur_to_write_bytes(asm_thumb_t *as, int n) {
return mp_asm_base_get_cur_to_write_bytes(&as->base, n);
}
void asm_thumb_end_pass(asm_thumb_t *as) {
......@@ -92,7 +51,7 @@ void asm_thumb_end_pass(asm_thumb_t *as) {
// could check labels are resolved...
#if defined(MCU_SERIES_F7)
if (as->pass == ASM_THUMB_PASS_EMIT) {
if (as->base.pass == MP_ASM_PASS_EMIT) {
// flush D-cache, so the code emited is stored in memory
SCB_CleanDCache_by_Addr((uint32_t*)as->code_base, as->code_size);
// invalidate I-cache
......@@ -101,33 +60,6 @@ void asm_thumb_end_pass(asm_thumb_t *as) {
#endif
}
// all functions must go through this one to emit bytes
// if as->pass < ASM_THUMB_PASS_EMIT, then this function only returns a buffer of 4 bytes length
STATIC byte *asm_thumb_get_cur_to_write_bytes(asm_thumb_t *as, int num_bytes_to_write) {
//printf("emit %d\n", num_bytes_to_write);
if (as->pass < ASM_THUMB_PASS_EMIT) {
as->code_offset += num_bytes_to_write;
return as->dummy_data;
} else {
assert(as->code_offset + num_bytes_to_write <= as->code_size);
byte *c = as->code_base + as->code_offset;
as->code_offset += num_bytes_to_write;
return c;
}
}
uint asm_thumb_get_code_pos(asm_thumb_t *as) {
return as->code_offset;
}
uint asm_thumb_get_code_size(asm_thumb_t *as) {
return as->code_size;
}
void *asm_thumb_get_code(asm_thumb_t *as) {
return as->code_base;
}
/*
STATIC void asm_thumb_write_byte_1(asm_thumb_t *as, byte b1) {
byte *c = asm_thumb_get_cur_to_write_bytes(as, 1);
......@@ -223,39 +155,9 @@ void asm_thumb_exit(asm_thumb_t *as) {
asm_thumb_op16(as, OP_POP_RLIST_PC(as->push_reglist));
}
void asm_thumb_label_assign(asm_thumb_t *as, uint label) {
assert(label < as->max_num_labels);
if (as->pass < ASM_THUMB_PASS_EMIT) {
// assign label offset
assert(as->label_offsets[label] == -1);
as->label_offsets[label] = as->code_offset;
} else {
// ensure label offset has not changed from PASS_COMPUTE to PASS_EMIT
//printf("l%d: (at %d=%ld)\n", label, as->label_offsets[label], as->code_offset);
assert(as->label_offsets[label] == as->code_offset);
}
}
void asm_thumb_align(asm_thumb_t* as, uint align) {
// TODO fill unused data with NOPs?
as->code_offset = (as->code_offset + align - 1) & (~(align - 1));
}
void asm_thumb_data(asm_thumb_t* as, uint bytesize, uint val) {
byte *c = asm_thumb_get_cur_to_write_bytes(as, bytesize);
// only write to the buffer in the emit pass (otherwise we overflow dummy_data)
if (as->pass == ASM_THUMB_PASS_EMIT) {
// little endian
for (uint i = 0; i < bytesize; i++) {
*c++ = val;
val >>= 8;
}
}
}
STATIC mp_uint_t get_label_dest(asm_thumb_t *as, uint label) {
assert(label < as->max_num_labels);
return as->label_offsets[label];
assert(label < as->base.max_num_labels);
return as->base.label_offsets[label];
}
void asm_thumb_op16(asm_thumb_t *as, uint op) {
......@@ -309,10 +211,10 @@ void asm_thumb_mov_reg_i16(asm_thumb_t *as, uint mov_op, uint reg_dest, int i16_
bool asm_thumb_b_n_label(asm_thumb_t *as, uint label) {
mp_uint_t dest = get_label_dest(as, label);
mp_int_t rel = dest - as->code_offset;
mp_int_t rel = dest - as->base.code_offset;
rel -= 4; // account for instruction prefetch, PC is 4 bytes ahead of this instruction
asm_thumb_op16(as, OP_B_N(rel));
return as->pass != ASM_THUMB_PASS_EMIT || SIGNED_FIT12(rel);
return as->base.pass != MP_ASM_PASS_EMIT || SIGNED_FIT12(rel);
}
#define OP_BCC_N(cond, byte_offset) (0xd000 | ((cond) << 8) | (((byte_offset) >> 1) & 0x00ff))
......@@ -323,11 +225,11 @@ bool asm_thumb_b_n_label(asm_thumb_t *as, uint label) {
bool asm_thumb_bcc_nw_label(asm_thumb_t *as, int cond, uint label, bool wide) {
mp_uint_t dest = get_label_dest(as, label);
mp_int_t rel = dest - as->code_offset;
mp_int_t rel = dest - as->base.code_offset;
rel -= 4; // account for instruction prefetch, PC is 4 bytes ahead of this instruction
if (!wide) {
asm_thumb_op16(as, OP_BCC_N(cond, rel));
return as->pass != ASM_THUMB_PASS_EMIT || SIGNED_FIT9(rel);
return as->base.pass != MP_ASM_PASS_EMIT || SIGNED_FIT9(rel);
} else {
asm_thumb_op32(as, OP_BCC_W_HI(cond, rel), OP_BCC_W_LO(rel));
return true;
......@@ -339,10 +241,10 @@ bool asm_thumb_bcc_nw_label(asm_thumb_t *as, int cond, uint label, bool wide) {
bool asm_thumb_bl_label(asm_thumb_t *as, uint label) {
mp_uint_t dest = get_label_dest(as, label);
mp_int_t rel = dest - as->code_offset;
mp_int_t rel = dest - as->base.code_offset;
rel -= 4; // account for instruction prefetch, PC is 4 bytes ahead of this instruction
asm_thumb_op32(as, OP_BL_HI(rel), OP_BL_LO(rel));
return as->pass != ASM_THUMB_PASS_EMIT || SIGNED_FIT23(rel);
return as->base.pass != MP_ASM_PASS_EMIT || SIGNED_FIT23(rel);
}
void asm_thumb_mov_reg_i32(asm_thumb_t *as, uint reg_dest, mp_uint_t i32) {
......@@ -367,13 +269,13 @@ void asm_thumb_mov_reg_i32_optimised(asm_thumb_t *as, uint reg_dest, int i32) {
// TODO this is very inefficient, improve it!
void asm_thumb_mov_reg_i32_aligned(asm_thumb_t *as, uint reg_dest, int i32) {
// align on machine-word + 2
if ((as->code_offset & 3) == 0) {
if ((as->base.code_offset & 3) == 0) {
asm_thumb_op16(as, ASM_THUMB_OP_NOP);
}
// jump over the i32 value (instruction prefetch adds 2 to PC)
asm_thumb_op16(as, OP_B_N(2));
// store i32 on machine-word aligned boundary
asm_thumb_data(as, 4, i32);
mp_asm_base_data(&as->base, 4, i32);
// do the actual load of the i32 value
asm_thumb_mov_reg_i32_optimised(as, reg_dest, i32);
}
......@@ -384,14 +286,14 @@ void asm_thumb_mov_reg_i32_aligned(asm_thumb_t *as, uint reg_dest, int i32) {
void asm_thumb_mov_local_reg(asm_thumb_t *as, int local_num, uint rlo_src) {
assert(rlo_src < ASM_THUMB_REG_R8);
int word_offset = local_num;
assert(as->pass < ASM_THUMB_PASS_EMIT || word_offset >= 0);
assert(as->base.pass < MP_ASM_PASS_EMIT || word_offset >= 0);
asm_thumb_op16(as, OP_STR_TO_SP_OFFSET(rlo_src, word_offset));
}
void asm_thumb_mov_reg_local(asm_thumb_t *as, uint rlo_dest, int local_num) {
assert(rlo_dest < ASM_THUMB_REG_R8);
int word_offset = local_num;
assert(as->pass < ASM_THUMB_PASS_EMIT || word_offset >= 0);
assert(as->base.pass < MP_ASM_PASS_EMIT || word_offset >= 0);
asm_thumb_op16(as, OP_LDR_FROM_SP_OFFSET(rlo_dest, word_offset));
}
......@@ -400,7 +302,7 @@ void asm_thumb_mov_reg_local(asm_thumb_t *as, uint rlo_dest, int local_num) {
void asm_thumb_mov_reg_local_addr(asm_thumb_t *as, uint rlo_dest, int local_num) {
assert(rlo_dest < ASM_THUMB_REG_R8);
int word_offset = local_num;
assert(as->pass < ASM_THUMB_PASS_EMIT || word_offset >= 0);
assert(as->base.pass < MP_ASM_PASS_EMIT || word_offset >= 0);
asm_thumb_op16(as, OP_ADD_REG_SP_OFFSET(rlo_dest, word_offset));
}
......@@ -410,7 +312,7 @@ void asm_thumb_mov_reg_local_addr(asm_thumb_t *as, uint rlo_dest, int local_num)
void asm_thumb_b_label(asm_thumb_t *as, uint label) {
mp_uint_t dest = get_label_dest(as, label);
mp_int_t rel = dest - as->code_offset;
mp_int_t rel = dest - as->base.code_offset;
rel -= 4; // account for instruction prefetch, PC is 4 bytes ahead of this instruction
if (dest != (mp_uint_t)-1 && rel <= -4) {
// is a backwards jump, so we know the size of the jump on the first pass
......@@ -429,7 +331,7 @@ void asm_thumb_b_label(asm_thumb_t *as, uint label) {
void asm_thumb_bcc_label(asm_thumb_t *as, int cond, uint label) {
mp_uint_t dest = get_label_dest(as, label);
mp_int_t rel = dest - as->code_offset;
mp_int_t rel = dest - as->base.code_offset;
rel -= 4; // account for instruction prefetch, PC is 4 bytes ahead of this instruction
if (dest != (mp_uint_t)-1 && rel <= -4) {
// is a backwards jump, so we know the size of the jump on the first pass
......
py/asmthumb.h
View file @ 61259958
......@@ -27,9 +27,7 @@
#define __MICROPY_INCLUDED_PY_ASMTHUMB_H__
#include "py/misc.h"
#define ASM_THUMB_PASS_COMPUTE (1)
#define ASM_THUMB_PASS_EMIT (2)
#include "py/asmbase.h"
#define ASM_THUMB_REG_R0 (0)
#define ASM_THUMB_REG_R1 (1)
......@@ -64,24 +62,17 @@
#define ASM_THUMB_CC_GT (0xc)
#define ASM_THUMB_CC_LE (0xd)
typedef struct _asm_thumb_t asm_thumb_t;
typedef struct _asm_thumb_t {
mp_asm_base_t base;
uint32_t push_reglist;
uint32_t stack_adjust;
} asm_thumb_t;
asm_thumb_t *asm_thumb_new(uint max_num_labels);
void asm_thumb_free(asm_thumb_t *as, bool free_code);
void asm_thumb_start_pass(asm_thumb_t *as, uint pass);
void asm_thumb_end_pass(asm_thumb_t *as);
uint asm_thumb_get_code_pos(asm_thumb_t *as);
uint asm_thumb_get_code_size(asm_thumb_t *as);
void *asm_thumb_get_code(asm_thumb_t *as);
void asm_thumb_entry(asm_thumb_t *as, int num_locals);
void asm_thumb_exit(asm_thumb_t *as);
void asm_thumb_label_assign(asm_thumb_t *as, uint label);
void asm_thumb_align(asm_thumb_t* as, uint align);
void asm_thumb_data(asm_thumb_t* as, uint bytesize, uint val);
// argument order follows ARM, in general dest is first
// note there is a difference between movw and mov.w, and many others!
......
py/asmx64.c
View file @ 61259958
......@@ -116,80 +116,8 @@
#define UNSIGNED_FIT32(x) (((x) & 0xffffffff00000000) == 0)
#define SIGNED_FIT8(x) (((x) & 0xffffff80) == 0) || (((x) & 0xffffff80) == 0xffffff80)
struct _asm_x64_t {
uint pass;
mp_uint_t code_offset;
mp_uint_t code_size;
byte *code_base;
byte dummy_data[8];
mp_uint_t max_num_labels;
mp_uint_t *label_offsets;
int num_locals;
};
asm_x64_t *asm_x64_new(mp_uint_t max_num_labels) {