diff options
Diffstat (limited to 'py/vm.c')
-rw-r--r-- | py/vm.c | 172 |
1 files changed, 87 insertions, 85 deletions
@@ -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?? |