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py: Implement ptr32 load and store in viper emitter.

libffi-submodule
Damien George 2015-10-13 00:50:17 +01:00
parent 21f43ba9b0
commit b8f9ac5411
8 changed files with 156 additions and 3 deletions
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20
py/asmx64.c
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@ -340,6 +340,16 @@ void asm_x64_mov_r16_to_mem16(asm_x64_t *as, int src_r64, int dest_r64, int dest
asm_x64_write_r64_disp(as, src_r64, dest_r64, dest_disp);
}
void asm_x64_mov_r32_to_mem32(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp) {
assert(dest_r64 < 8);
if (src_r64 < 8) {
asm_x64_write_byte_1(as, OPCODE_MOV_R64_TO_RM64);
} else {
asm_x64_write_byte_2(as, REX_PREFIX | REX_R, OPCODE_MOV_R64_TO_RM64);
}
asm_x64_write_r64_disp(as, src_r64, dest_r64, dest_disp);
}
void asm_x64_mov_r64_to_mem64(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp) {
// use REX prefix for 64 bit operation
asm_x64_write_byte_2(as, REX_PREFIX | REX_W | (src_r64 < 8 ? 0 : REX_R) | (dest_r64 < 8 ? 0 : REX_B), OPCODE_MOV_R64_TO_RM64);
@ -366,6 +376,16 @@ void asm_x64_mov_mem16_to_r64zx(asm_x64_t *as, int src_r64, int src_disp, int de
asm_x64_write_r64_disp(as, dest_r64, src_r64, src_disp);
}
void asm_x64_mov_mem32_to_r64zx(asm_x64_t *as, int src_r64, int src_disp, int dest_r64) {
assert(src_r64 < 8);
if (dest_r64 < 8) {
asm_x64_write_byte_1(as, OPCODE_MOV_RM64_TO_R64);
} else {
asm_x64_write_byte_2(as, REX_PREFIX | REX_R, OPCODE_MOV_RM64_TO_R64);
}
asm_x64_write_r64_disp(as, dest_r64, src_r64, src_disp);
}
void asm_x64_mov_mem64_to_r64(asm_x64_t *as, int src_r64, int src_disp, int dest_r64) {
// use REX prefix for 64 bit operation
asm_x64_write_byte_2(as, REX_PREFIX | REX_W | (dest_r64 < 8 ? 0 : REX_R) | (src_r64 < 8 ? 0 : REX_B), OPCODE_MOV_RM64_TO_R64);

2
py/asmx64.h
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@ -94,9 +94,11 @@ void asm_x64_mov_i64_to_r64_optimised(asm_x64_t *as, int64_t src_i64, int dest_r
void asm_x64_mov_i64_to_r64_aligned(asm_x64_t *as, int64_t src_i64, int dest_r64);
void asm_x64_mov_r8_to_mem8(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp);
void asm_x64_mov_r16_to_mem16(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp);
void asm_x64_mov_r32_to_mem32(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp);
void asm_x64_mov_r64_to_mem64(asm_x64_t *as, int src_r64, int dest_r64, int dest_disp);
void asm_x64_mov_mem8_to_r64zx(asm_x64_t *as, int src_r64, int src_disp, int dest_r64);
void asm_x64_mov_mem16_to_r64zx(asm_x64_t *as, int src_r64, int src_disp, int dest_r64);
void asm_x64_mov_mem32_to_r64zx(asm_x64_t *as, int src_r64, int src_disp, int dest_r64);
void asm_x64_mov_mem64_to_r64(asm_x64_t *as, int src_r64, int src_disp, int dest_r64);
void asm_x64_and_r64_r64(asm_x64_t *as, int dest_r64, int src_r64);
void asm_x64_or_r64_r64(asm_x64_t *as, int dest_r64, int src_r64);

82
py/emitnative.c
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@ -152,11 +152,13 @@
#define ASM_LOAD_REG_REG_OFFSET(as, reg_dest, reg_base, word_offset) asm_x64_mov_mem64_to_r64((as), (reg_base), 8 * (word_offset), (reg_dest))
#define ASM_LOAD8_REG_REG(as, reg_dest, reg_base) asm_x64_mov_mem8_to_r64zx((as), (reg_base), 0, (reg_dest))
#define ASM_LOAD16_REG_REG(as, reg_dest, reg_base) asm_x64_mov_mem16_to_r64zx((as), (reg_base), 0, (reg_dest))
#define ASM_LOAD32_REG_REG(as, reg_dest, reg_base) asm_x64_mov_mem32_to_r64zx((as), (reg_base), 0, (reg_dest))
#define ASM_STORE_REG_REG(as, reg_src, reg_base) asm_x64_mov_r64_to_mem64((as), (reg_src), (reg_base), 0)
#define ASM_STORE_REG_REG_OFFSET(as, reg_src, reg_base, word_offset) asm_x64_mov_r64_to_mem64((as), (reg_src), (reg_base), 8 * (word_offset))
#define ASM_STORE8_REG_REG(as, reg_src, reg_base) asm_x64_mov_r8_to_mem8((as), (reg_src), (reg_base), 0)
#define ASM_STORE16_REG_REG(as, reg_src, reg_base) asm_x64_mov_r16_to_mem16((as), (reg_src), (reg_base), 0)
#define ASM_STORE32_REG_REG(as, reg_src, reg_base) asm_x64_mov_r32_to_mem32((as), (reg_src), (reg_base), 0)
#elif N_X86
@ -295,11 +297,13 @@ STATIC byte mp_f_n_args[MP_F_NUMBER_OF] = {
#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)
#elif N_THUMB
@ -388,11 +392,13 @@ STATIC byte mp_f_n_args[MP_F_NUMBER_OF] = {
#define ASM_LOAD_REG_REG_OFFSET(as, reg_dest, reg_base, word_offset) asm_thumb_ldr_rlo_rlo_i5((as), (reg_dest), (reg_base), (word_offset))
#define ASM_LOAD8_REG_REG(as, reg_dest, reg_base) asm_thumb_ldrb_rlo_rlo_i5((as), (reg_dest), (reg_base), 0)
#define ASM_LOAD16_REG_REG(as, reg_dest, reg_base) asm_thumb_ldrh_rlo_rlo_i5((as), (reg_dest), (reg_base), 0)
#define ASM_LOAD32_REG_REG(as, reg_dest, reg_base) asm_thumb_ldr_rlo_rlo_i5((as), (reg_dest), (reg_base), 0)
#define ASM_STORE_REG_REG(as, reg_src, reg_base) asm_thumb_str_rlo_rlo_i5((as), (reg_src), (reg_base), 0)
#define ASM_STORE_REG_REG_OFFSET(as, reg_src, reg_base, word_offset) asm_thumb_str_rlo_rlo_i5((as), (reg_src), (reg_base), (word_offset))
#define ASM_STORE8_REG_REG(as, reg_src, reg_base) asm_thumb_strb_rlo_rlo_i5((as), (reg_src), (reg_base), 0)
#define ASM_STORE16_REG_REG(as, reg_src, reg_base) asm_thumb_strh_rlo_rlo_i5((as), (reg_src), (reg_base), 0)
#define ASM_STORE32_REG_REG(as, reg_src, reg_base) asm_thumb_str_rlo_rlo_i5((as), (reg_src), (reg_base), 0)
#elif N_ARM
@ -480,11 +486,13 @@ STATIC byte mp_f_n_args[MP_F_NUMBER_OF] = {
#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))
#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))
#else
@ -513,10 +521,11 @@ typedef enum {
VTYPE_PTR = 0x10 | MP_NATIVE_TYPE_UINT, // pointer to word sized entity
VTYPE_PTR8 = 0x20 | MP_NATIVE_TYPE_UINT,
VTYPE_PTR16 = 0x30 | MP_NATIVE_TYPE_UINT,
VTYPE_PTR_NONE = 0x40 | MP_NATIVE_TYPE_UINT,
VTYPE_PTR32 = 0x40 | MP_NATIVE_TYPE_UINT,
VTYPE_PTR_NONE = 0x50 | MP_NATIVE_TYPE_UINT,
VTYPE_UNBOUND = 0x50 | MP_NATIVE_TYPE_OBJ,
VTYPE_BUILTIN_CAST = 0x60 | MP_NATIVE_TYPE_OBJ,
VTYPE_UNBOUND = 0x60 | MP_NATIVE_TYPE_OBJ,
VTYPE_BUILTIN_CAST = 0x70 | MP_NATIVE_TYPE_OBJ,
} vtype_kind_t;
STATIC qstr vtype_to_qstr(vtype_kind_t vtype) {
@ -528,6 +537,7 @@ STATIC qstr vtype_to_qstr(vtype_kind_t vtype) {
case VTYPE_PTR: return MP_QSTR_ptr;
case VTYPE_PTR8: return MP_QSTR_ptr8;
case VTYPE_PTR16: return MP_QSTR_ptr16;
case VTYPE_PTR32: return MP_QSTR_ptr32;
case VTYPE_PTR_NONE: default: return MP_QSTR_None;
}
}
@ -600,6 +610,7 @@ STATIC void emit_native_set_native_type(emit_t *emit, mp_uint_t op, mp_uint_t ar
case MP_QSTR_ptr: type = VTYPE_PTR; break;
case MP_QSTR_ptr8: type = VTYPE_PTR8; break;
case MP_QSTR_ptr16: type = VTYPE_PTR16; break;
case MP_QSTR_ptr32: type = VTYPE_PTR32; break;
default: EMIT_NATIVE_VIPER_TYPE_ERROR(emit, "unknown type '%q'", arg2); return;
}
if (op == MP_EMIT_NATIVE_TYPE_RETURN) {
@ -1391,6 +1402,8 @@ STATIC void emit_native_load_global(emit_t *emit, qstr qst) {
emit_post_push_imm(emit, VTYPE_BUILTIN_CAST, VTYPE_PTR8);
} else if (emit->do_viper_types && qst == MP_QSTR_ptr16) {
emit_post_push_imm(emit, VTYPE_BUILTIN_CAST, VTYPE_PTR16);
} else if (emit->do_viper_types && qst == MP_QSTR_ptr32) {
emit_post_push_imm(emit, VTYPE_BUILTIN_CAST, VTYPE_PTR32);
} else {
emit_call_with_imm_arg(emit, MP_F_LOAD_GLOBAL, qst, REG_ARG_1);
emit_post_push_reg(emit, VTYPE_PYOBJ, REG_RET);
@ -1494,6 +1507,23 @@ STATIC void emit_native_load_subscr(emit_t *emit) {
ASM_LOAD16_REG_REG(emit->as, REG_RET, reg_base); // load from (base+2*index)
break;
}
case VTYPE_PTR32: {
// pointer to 32-bit memory
if (index_value != 0) {
// index is a non-zero immediate
#if N_THUMB
if (index_value > 0 && index_value < 32) {
asm_thumb_ldr_rlo_rlo_i5(emit->as, REG_RET, reg_base, index_value);
break;
}
#endif
ASM_MOV_IMM_TO_REG(emit->as, index_value << 2, reg_index);
ASM_ADD_REG_REG(emit->as, reg_index, reg_base); // add 4*index to base
reg_base = reg_index;
}
ASM_LOAD32_REG_REG(emit->as, REG_RET, reg_base); // load from (base+4*index)
break;
}
default:
EMIT_NATIVE_VIPER_TYPE_ERROR(emit,
"can't load from '%q'", vtype_to_qstr(vtype_base));
@ -1521,6 +1551,16 @@ STATIC void emit_native_load_subscr(emit_t *emit) {
ASM_LOAD16_REG_REG(emit->as, REG_RET, REG_ARG_1); // load from (base+2*index)
break;
}
case VTYPE_PTR32: {
// pointer to word-size memory
assert(vtype_index == VTYPE_INT);
ASM_ADD_REG_REG(emit->as, REG_ARG_1, reg_index); // add index to base
ASM_ADD_REG_REG(emit->as, REG_ARG_1, reg_index); // add index to base
ASM_ADD_REG_REG(emit->as, REG_ARG_1, reg_index); // add index to base
ASM_ADD_REG_REG(emit->as, REG_ARG_1, reg_index); // add index to base
ASM_LOAD32_REG_REG(emit->as, REG_RET, REG_ARG_1); // load from (base+4*index)
break;
}
default:
EMIT_NATIVE_VIPER_TYPE_ERROR(emit,
"can't load from '%q'", vtype_to_qstr(vtype_base));
@ -1690,6 +1730,27 @@ STATIC void emit_native_store_subscr(emit_t *emit) {
ASM_STORE16_REG_REG(emit->as, reg_value, reg_base); // store value to (base+2*index)
break;
}
case VTYPE_PTR32: {
// pointer to 32-bit memory
if (index_value != 0) {
// index is a non-zero immediate
#if N_THUMB
if (index_value > 0 && index_value < 32) {
asm_thumb_str_rlo_rlo_i5(emit->as, reg_value, reg_base, index_value);
break;
}
#endif
ASM_MOV_IMM_TO_REG(emit->as, index_value << 2, reg_index);
#if N_ARM
asm_arm_str_reg_reg_reg(emit->as, reg_value, reg_base, reg_index);
return;
#endif
ASM_ADD_REG_REG(emit->as, reg_index, reg_base); // add 4*index to base
reg_base = reg_index;
}
ASM_STORE32_REG_REG(emit->as, reg_value, reg_base); // store value to (base+4*index)
break;
}
default:
EMIT_NATIVE_VIPER_TYPE_ERROR(emit,
"can't store to '%q'", vtype_to_qstr(vtype_base));
@ -1732,6 +1793,20 @@ STATIC void emit_native_store_subscr(emit_t *emit) {
ASM_STORE16_REG_REG(emit->as, reg_value, REG_ARG_1); // store value to (base+2*index)
break;
}
case VTYPE_PTR32: {
// pointer to 32-bit memory
assert(vtype_index == VTYPE_INT);
#if N_ARM
asm_arm_str_reg_reg_reg(emit->as, reg_value, REG_ARG_1, reg_index);
break;
#endif
ASM_ADD_REG_REG(emit->as, REG_ARG_1, reg_index); // add index to base
ASM_ADD_REG_REG(emit->as, REG_ARG_1, reg_index); // add index to base
ASM_ADD_REG_REG(emit->as, REG_ARG_1, reg_index); // add index to base
ASM_ADD_REG_REG(emit->as, REG_ARG_1, reg_index); // add index to base
ASM_STORE32_REG_REG(emit->as, reg_value, REG_ARG_1); // store value to (base+4*index)
break;
}
default:
EMIT_NATIVE_VIPER_TYPE_ERROR(emit,
"can't store to '%q'", vtype_to_qstr(vtype_base));
@ -2311,6 +2386,7 @@ STATIC void emit_native_call_function(emit_t *emit, mp_uint_t n_positional, mp_u
case VTYPE_PTR:
case VTYPE_PTR8:
case VTYPE_PTR16:
case VTYPE_PTR32:
case VTYPE_PTR_NONE:
emit_fold_stack_top(emit, REG_ARG_1);
emit_post_top_set_vtype(emit, vtype_cast);

1
py/qstrdefs.h
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@ -103,6 +103,7 @@ Q(uint)
Q(ptr)
Q(ptr8)
Q(ptr16)
Q(ptr32)
#endif
#if MICROPY_EMIT_INLINE_THUMB

21
tests/micropython/viper_ptr32_load.py 100644
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@ -0,0 +1,21 @@
# test loading from ptr32 type
@micropython.viper
def get(src:ptr32) -> int:
return src[0]
@micropython.viper
def get1(src:ptr32) -> int:
return src[1]
@micropython.viper
def memadd(src:ptr32, n:int) -> int:
sum = 0
for i in range(n):
sum += src[i]
return sum
b = bytearray(b'\x12\x12\x12\x12\x34\x34\x34\x34')
print(b)
print(hex(get(b)), hex(get1(b)))
print(hex(memadd(b, 2)))

3
tests/micropython/viper_ptr32_load.py.exp 100644
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@ -0,0 +1,3 @@
bytearray(b'\x12\x12\x12\x124444')
0x12121212 0x34343434
0x46464646

26
tests/micropython/viper_ptr32_store.py 100644
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@ -0,0 +1,26 @@
# test store to ptr32 type
@micropython.viper
def set(dest:ptr32, val:int):
dest[0] = val
@micropython.viper
def set1(dest:ptr32, val:int):
dest[1] = val
@micropython.viper
def memset(dest:ptr32, val:int, n:int):
for i in range(n):
dest[i] = val
b = bytearray(8)
print(b)
set(b, 0x42424242)
print(b)
set1(b, 0x43434343)
print(b)
memset(b, 0x44444444, len(b) // 4)
print(b)

4
tests/micropython/viper_ptr32_store.py.exp 100644
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@ -0,0 +1,4 @@
bytearray(b'\x00\x00\x00\x00\x00\x00\x00\x00')
bytearray(b'BBBB\x00\x00\x00\x00')
bytearray(b'BBBBCCCC')
bytearray(b'DDDDDDDD')