summaryrefslogtreecommitdiffstatshomepage
path: root/py/vm.c
diff options
context:
space:
mode:
Diffstat (limited to 'py/vm.c')
-rw-r--r--py/vm.c172
1 files changed, 87 insertions, 85 deletions
diff --git a/py/vm.c b/py/vm.c
index 7db6a7d9c4..b10d641ca1 100644
--- a/py/vm.c
+++ b/py/vm.c
@@ -6,8 +6,10 @@
#include "nlr.h"
#include "misc.h"
-#include "mpyconfig.h"
+#include "mpconfig.h"
+#include "obj.h"
#include "runtime.h"
+#include "bc0.h"
#include "bc.h"
// (value) stack grows down (to be compatible with native code when passing pointers to the stack), top element is pointed to
@@ -23,12 +25,12 @@
#define SET_TOP(val) *sp = (val)
// args are in reverse order in array
-py_obj_t py_execute_byte_code(const byte *code, const py_obj_t *args, uint n_args, uint n_state) {
- py_obj_t temp_state[10]; // TODO allocate properly
- py_obj_t *state = &temp_state[0];
- py_obj_t *sp = &state[10];
+mp_obj_t mp_execute_byte_code(const byte *code, const mp_obj_t *args, uint n_args, uint n_state) {
+ mp_obj_t temp_state[10]; // TODO allocate properly
+ mp_obj_t *state = &temp_state[0];
+ mp_obj_t *sp = &state[10];
if (n_state > 10) {
- state = m_new(py_obj_t, n_state);
+ state = m_new(mp_obj_t, n_state);
sp = &state[n_state];
}
// init args
@@ -37,7 +39,7 @@ py_obj_t py_execute_byte_code(const byte *code, const py_obj_t *args, uint n_arg
state[i] = args[n_args - 1 - i];
}
const byte *ip = code;
- if (py_execute_byte_code_2(&ip, &state[0], &sp)) {
+ if (mp_execute_byte_code_2(&ip, &state[0], &sp)) {
// it shouldn't yield
assert(0);
}
@@ -48,15 +50,15 @@ py_obj_t py_execute_byte_code(const byte *code, const py_obj_t *args, uint n_arg
// fastn has items in normal order
// sp points to top of stack which grows down
-bool py_execute_byte_code_2(const byte **ip_in_out, py_obj_t *fastn, py_obj_t **sp_in_out) {
+bool mp_execute_byte_code_2(const byte **ip_in_out, mp_obj_t *fastn, mp_obj_t **sp_in_out) {
// careful: be sure to declare volatile any variables read in the exception handler (written is ok, I think)
const byte *ip = *ip_in_out;
- py_obj_t *sp = *sp_in_out;
+ mp_obj_t *sp = *sp_in_out;
machine_uint_t unum;
qstr qstr;
- py_obj_t obj1, obj2;
- py_obj_t fast0 = fastn[0], fast1 = fastn[1], fast2 = fastn[2];
+ mp_obj_t obj1, obj2;
+ mp_obj_t fast0 = fastn[0], fast1 = fastn[1], fast2 = fastn[2];
nlr_buf_t nlr;
// on the exception stack we store (ip, sp) for each block
@@ -70,182 +72,182 @@ bool py_execute_byte_code_2(const byte **ip_in_out, py_obj_t *fastn, py_obj_t **
for (;;) {
int op = *ip++;
switch (op) {
- case PYBC_LOAD_CONST_FALSE:
- PUSH(py_const_false);
+ case MP_BC_LOAD_CONST_FALSE:
+ PUSH(mp_const_false);
break;
- case PYBC_LOAD_CONST_NONE:
- PUSH(py_const_none);
+ case MP_BC_LOAD_CONST_NONE:
+ PUSH(mp_const_none);
break;
- case PYBC_LOAD_CONST_TRUE:
- PUSH(py_const_true);
+ case MP_BC_LOAD_CONST_TRUE:
+ PUSH(mp_const_true);
break;
- case PYBC_LOAD_CONST_SMALL_INT:
+ case MP_BC_LOAD_CONST_SMALL_INT:
unum = (ip[0] | (ip[1] << 8) | (ip[2] << 16)) - 0x800000;
ip += 3;
- PUSH((py_obj_t)(unum << 1 | 1));
+ PUSH((mp_obj_t)(unum << 1 | 1));
break;
- case PYBC_LOAD_CONST_DEC:
+ case MP_BC_LOAD_CONST_DEC:
DECODE_QSTR;
PUSH(rt_load_const_dec(qstr));
break;
- case PYBC_LOAD_CONST_ID:
+ case MP_BC_LOAD_CONST_ID:
DECODE_QSTR;
PUSH(rt_load_const_str(qstr)); // TODO
break;
- case PYBC_LOAD_CONST_STRING:
+ case MP_BC_LOAD_CONST_STRING:
DECODE_QSTR;
PUSH(rt_load_const_str(qstr));
break;
- case PYBC_LOAD_FAST_0:
+ case MP_BC_LOAD_FAST_0:
PUSH(fast0);
break;
- case PYBC_LOAD_FAST_1:
+ case MP_BC_LOAD_FAST_1:
PUSH(fast1);
break;
- case PYBC_LOAD_FAST_2:
+ case MP_BC_LOAD_FAST_2:
PUSH(fast2);
break;
- case PYBC_LOAD_FAST_N:
+ case MP_BC_LOAD_FAST_N:
DECODE_UINT;
PUSH(fastn[unum]);
break;
- case PYBC_LOAD_DEREF:
+ case MP_BC_LOAD_DEREF:
DECODE_UINT;
PUSH(rt_get_cell(fastn[unum]));
break;
- case PYBC_LOAD_CLOSURE:
+ case MP_BC_LOAD_CLOSURE:
DECODE_UINT;
PUSH(fastn[unum]);
break;
- case PYBC_LOAD_NAME:
+ case MP_BC_LOAD_NAME:
DECODE_QSTR;
PUSH(rt_load_name(qstr));
break;
- case PYBC_LOAD_GLOBAL:
+ case MP_BC_LOAD_GLOBAL:
DECODE_QSTR;
PUSH(rt_load_global(qstr));
break;
- case PYBC_LOAD_ATTR:
+ case MP_BC_LOAD_ATTR:
DECODE_QSTR;
SET_TOP(rt_load_attr(TOP(), qstr));
break;
- case PYBC_LOAD_METHOD:
+ case MP_BC_LOAD_METHOD:
DECODE_QSTR;
sp -= 1;
rt_load_method(sp[1], qstr, sp);
break;
- case PYBC_LOAD_BUILD_CLASS:
+ case MP_BC_LOAD_BUILD_CLASS:
PUSH(rt_load_build_class());
break;
- case PYBC_STORE_FAST_0:
+ case MP_BC_STORE_FAST_0:
fast0 = POP();
break;
- case PYBC_STORE_FAST_1:
+ case MP_BC_STORE_FAST_1:
fast1 = POP();
break;
- case PYBC_STORE_FAST_2:
+ case MP_BC_STORE_FAST_2:
fast2 = POP();
break;
- case PYBC_STORE_FAST_N:
+ case MP_BC_STORE_FAST_N:
DECODE_UINT;
fastn[unum] = POP();
break;
- case PYBC_STORE_DEREF:
+ case MP_BC_STORE_DEREF:
DECODE_UINT;
rt_set_cell(fastn[unum], POP());
break;
- case PYBC_STORE_NAME:
+ case MP_BC_STORE_NAME:
DECODE_QSTR;
rt_store_name(qstr, POP());
break;
- case PYBC_STORE_GLOBAL:
+ case MP_BC_STORE_GLOBAL:
DECODE_QSTR;
rt_store_global(qstr, POP());
break;
- case PYBC_STORE_ATTR:
+ case MP_BC_STORE_ATTR:
DECODE_QSTR;
rt_store_attr(sp[0], qstr, sp[1]);
sp += 2;
break;
- case PYBC_STORE_SUBSCR:
+ case MP_BC_STORE_SUBSCR:
rt_store_subscr(sp[1], sp[0], sp[2]);
sp += 3;
break;
- case PYBC_DUP_TOP:
+ case MP_BC_DUP_TOP:
obj1 = TOP();
PUSH(obj1);
break;
- case PYBC_DUP_TOP_TWO:
+ case MP_BC_DUP_TOP_TWO:
sp -= 2;
sp[0] = sp[2];
sp[1] = sp[3];
break;
- case PYBC_POP_TOP:
+ case MP_BC_POP_TOP:
++sp;
break;
- case PYBC_ROT_TWO:
+ case MP_BC_ROT_TWO:
obj1 = sp[0];
sp[0] = sp[1];
sp[1] = obj1;
break;
- case PYBC_ROT_THREE:
+ case MP_BC_ROT_THREE:
obj1 = sp[0];
sp[0] = sp[1];
sp[1] = sp[2];
sp[2] = obj1;
break;
- case PYBC_JUMP:
+ case MP_BC_JUMP:
DECODE_SLABEL;
ip += unum;
break;
- case PYBC_POP_JUMP_IF_TRUE:
+ case MP_BC_POP_JUMP_IF_TRUE:
DECODE_SLABEL;
if (rt_is_true(POP())) {
ip += unum;
}
break;
- case PYBC_POP_JUMP_IF_FALSE:
+ case MP_BC_POP_JUMP_IF_FALSE:
DECODE_SLABEL;
if (!rt_is_true(POP())) {
ip += unum;
}
break;
- case PYBC_JUMP_IF_TRUE_OR_POP:
+ case MP_BC_JUMP_IF_TRUE_OR_POP:
DECODE_SLABEL;
if (rt_is_true(TOP())) {
ip += unum;
@@ -254,7 +256,7 @@ bool py_execute_byte_code_2(const byte **ip_in_out, py_obj_t *fastn, py_obj_t **
}
break;
- case PYBC_JUMP_IF_FALSE_OR_POP:
+ case MP_BC_JUMP_IF_FALSE_OR_POP:
DECODE_SLABEL;
if (rt_is_true(TOP())) {
sp++;
@@ -264,19 +266,19 @@ bool py_execute_byte_code_2(const byte **ip_in_out, py_obj_t *fastn, py_obj_t **
break;
/* we are trying to get away without using this opcode
- case PYBC_SETUP_LOOP:
+ case MP_BC_SETUP_LOOP:
DECODE_UINT;
- // push_block(PYBC_SETUP_LOOP, ip + unum, sp)
+ // push_block(MP_BC_SETUP_LOOP, ip + unum, sp)
break;
*/
- case PYBC_SETUP_EXCEPT:
+ case MP_BC_SETUP_EXCEPT:
DECODE_ULABEL; // except labels are always forward
*++exc_sp = (machine_uint_t)ip + unum;
*++exc_sp = (machine_uint_t)sp;
break;
- case PYBC_END_FINALLY:
+ case MP_BC_END_FINALLY:
// not implemented
// if TOS is an exception, reraises the exception (3 values on TOS)
// if TOS is an integer, does something else
@@ -285,14 +287,14 @@ bool py_execute_byte_code_2(const byte **ip_in_out, py_obj_t *fastn, py_obj_t **
assert(0);
break;
- case PYBC_GET_ITER:
+ case MP_BC_GET_ITER:
SET_TOP(rt_getiter(TOP()));
break;
- case PYBC_FOR_ITER:
+ case MP_BC_FOR_ITER:
DECODE_ULABEL; // the jump offset if iteration finishes; for labels are always forward
obj1 = rt_iternext(TOP());
- if (obj1 == py_const_stop_iteration) {
+ if (obj1 == mp_const_stop_iteration) {
++sp; // pop the exhausted iterator
ip += unum; // jump to after for-block
} else {
@@ -300,110 +302,110 @@ bool py_execute_byte_code_2(const byte **ip_in_out, py_obj_t *fastn, py_obj_t **
}
break;
- case PYBC_POP_BLOCK:
+ case MP_BC_POP_BLOCK:
// pops block and restores the stack
assert(0);
break;
- case PYBC_POP_EXCEPT:
+ case MP_BC_POP_EXCEPT:
// TODO need to work out how blocks work etc
// pops block, checks it's an exception block, and restores the stack, saving the 3 exception values to local threadstate
assert(exc_sp >= &exc_stack[0]);
- //sp = (py_obj_t*)(*exc_sp--);
+ //sp = (mp_obj_t*)(*exc_sp--);
//exc_sp--; // discard ip
exc_sp -= 2;
//sp += 3; // pop 3 exception values
break;
- case PYBC_UNARY_OP:
+ case MP_BC_UNARY_OP:
unum = *ip++;
SET_TOP(rt_unary_op(unum, TOP()));
break;
- case PYBC_BINARY_OP:
+ case MP_BC_BINARY_OP:
unum = *ip++;
obj2 = POP();
obj1 = TOP();
SET_TOP(rt_binary_op(unum, obj1, obj2));
break;
- case PYBC_COMPARE_OP:
+ case MP_BC_COMPARE_OP:
unum = *ip++;
obj2 = POP();
obj1 = TOP();
SET_TOP(rt_compare_op(unum, obj1, obj2));
break;
- case PYBC_BUILD_TUPLE:
+ case MP_BC_BUILD_TUPLE:
DECODE_UINT;
obj1 = rt_build_tuple(unum, sp);
sp += unum - 1;
SET_TOP(obj1);
break;
- case PYBC_BUILD_LIST:
+ case MP_BC_BUILD_LIST:
DECODE_UINT;
obj1 = rt_build_list(unum, sp);
sp += unum - 1;
SET_TOP(obj1);
break;
- case PYBC_LIST_APPEND:
+ case MP_BC_LIST_APPEND:
DECODE_UINT;
// I think it's guaranteed by the compiler that sp[unum] is a list
rt_list_append(sp[unum], sp[0]);
sp++;
break;
- case PYBC_BUILD_MAP:
+ case MP_BC_BUILD_MAP:
DECODE_UINT;
PUSH(rt_build_map(unum));
break;
- case PYBC_STORE_MAP:
+ case MP_BC_STORE_MAP:
sp += 2;
rt_store_map(sp[0], sp[-2], sp[-1]);
break;
- case PYBC_MAP_ADD:
+ case MP_BC_MAP_ADD:
DECODE_UINT;
// I think it's guaranteed by the compiler that sp[unum + 1] is a map
rt_store_map(sp[unum + 1], sp[0], sp[1]);
sp += 2;
break;
- case PYBC_BUILD_SET:
+ case MP_BC_BUILD_SET:
DECODE_UINT;
obj1 = rt_build_set(unum, sp);
sp += unum - 1;
SET_TOP(obj1);
break;
- case PYBC_SET_ADD:
+ case MP_BC_SET_ADD:
DECODE_UINT;
// I think it's guaranteed by the compiler that sp[unum] is a set
rt_store_set(sp[unum], sp[0]);
sp++;
break;
- case PYBC_UNPACK_SEQUENCE:
+ case MP_BC_UNPACK_SEQUENCE:
DECODE_UINT;
rt_unpack_sequence(sp[0], unum, sp - unum + 1);
sp -= unum - 1;
break;
- case PYBC_MAKE_FUNCTION:
+ case MP_BC_MAKE_FUNCTION:
DECODE_UINT;
PUSH(rt_make_function_from_id(unum));
break;
- case PYBC_MAKE_CLOSURE:
+ case MP_BC_MAKE_CLOSURE:
DECODE_UINT;
obj1 = POP();
PUSH(rt_make_closure_from_id(unum, obj1));
break;
- case PYBC_CALL_FUNCTION:
+ case MP_BC_CALL_FUNCTION:
DECODE_UINT;
assert((unum & 0xff00) == 0); // n_keyword
unum &= 0xff; // n_positional
@@ -411,7 +413,7 @@ bool py_execute_byte_code_2(const byte **ip_in_out, py_obj_t *fastn, py_obj_t **
*sp = rt_call_function_n(*sp, unum, sp - unum);
break;
- case PYBC_CALL_METHOD:
+ case MP_BC_CALL_METHOD:
DECODE_UINT;
if ((unum & 0xff00) == 0) {
// no keywords
@@ -426,13 +428,13 @@ bool py_execute_byte_code_2(const byte **ip_in_out, py_obj_t *fastn, py_obj_t **
SET_TOP(obj1);
break;
- case PYBC_RETURN_VALUE:
+ case MP_BC_RETURN_VALUE:
nlr_pop();
*sp_in_out = sp;
assert(exc_sp == &exc_stack[-1]);
return false;
- case PYBC_YIELD_VALUE:
+ case MP_BC_YIELD_VALUE:
nlr_pop();
*ip_in_out = ip;
fastn[0] = fast0;
@@ -441,13 +443,13 @@ bool py_execute_byte_code_2(const byte **ip_in_out, py_obj_t *fastn, py_obj_t **
*sp_in_out = sp;
return true;
- case PYBC_IMPORT_NAME:
+ case MP_BC_IMPORT_NAME:
DECODE_QSTR;
obj1 = POP();
SET_TOP(rt_import_name(qstr, obj1, TOP()));
break;
- case PYBC_IMPORT_FROM:
+ case MP_BC_IMPORT_FROM:
DECODE_QSTR;
obj1 = rt_import_from(TOP(), qstr);
PUSH(obj1);
@@ -466,12 +468,12 @@ bool py_execute_byte_code_2(const byte **ip_in_out, py_obj_t *fastn, py_obj_t **
if (exc_sp >= &exc_stack[0]) {
// catch exception and pass to byte code
- sp = (py_obj_t*)(exc_sp[0]);
+ sp = (mp_obj_t*)(exc_sp[0]);
ip = (const byte*)(exc_sp[-1]);
// push(traceback, exc-val, exc-type)
- PUSH(py_const_none);
+ PUSH(mp_const_none);
PUSH(nlr.ret_val);
- PUSH(py_const_none);
+ PUSH(mp_const_none);
} else {
// re-raise exception
// TODO what to do if this is a generator??