#include #include #include #include #include #include "misc.h" #include "mpconfig.h" #include "bc0.h" #define DECODE_UINT do { unum = *ip++; if (unum > 127) { unum = ((unum & 0x3f) << 8) | (*ip++); } } while (0) #define DECODE_ULABEL do { unum = (ip[0] | (ip[1] << 8)); ip += 2; } while (0) #define DECODE_SLABEL do { unum = (ip[0] | (ip[1] << 8)) - 0x8000; ip += 2; } while (0) #define DECODE_QSTR do { qstr = *ip++; if (qstr > 127) { qstr = ((qstr & 0x3f) << 8) | (*ip++); } } while (0) void mp_show_byte_code(const byte *ip, int len) { const byte *ip_start = ip; // decode prelude { uint n_local = *ip++; printf("(NUM_LOCAL %u)\n", n_local); for (; n_local > 0; n_local--) { uint local_num = *ip++; printf("(INIT_CELL %u)\n", local_num); } len -= ip - ip_start; ip_start = ip; } machine_uint_t unum; qstr qstr; while (ip - ip_start < len) { printf("%02u ", (uint)(ip - ip_start)); int op = *ip++; switch (op) { case MP_BC_LOAD_CONST_FALSE: printf("LOAD_CONST_FALSE"); break; case MP_BC_LOAD_CONST_NONE: printf("LOAD_CONST_NONE"); break; case MP_BC_LOAD_CONST_TRUE: printf("LOAD_CONST_TRUE"); break; case MP_BC_LOAD_CONST_SMALL_INT: unum = (ip[0] | (ip[1] << 8) | (ip[2] << 16)) - 0x800000; ip += 3; printf("LOAD_CONST_SMALL_INT %d", (int)unum); break; /* case MP_BC_LOAD_CONST_DEC: DECODE_QSTR; PUSH(rt_load_const_dec(qstr)); break; */ case MP_BC_LOAD_CONST_ID: DECODE_QSTR; printf("LOAD_CONST_ID %s", qstr_str(qstr)); break; case MP_BC_LOAD_CONST_STRING: DECODE_QSTR; printf("LOAD_CONST_STRING %s", qstr_str(qstr)); break; case MP_BC_LOAD_FAST_0: printf("LOAD_FAST_0"); break; case MP_BC_LOAD_FAST_1: printf("LOAD_FAST_1"); break; case MP_BC_LOAD_FAST_2: printf("LOAD_FAST_2"); break; case MP_BC_LOAD_FAST_N: DECODE_UINT; printf("LOAD_FAST_N " UINT_FMT, unum); break; case MP_BC_LOAD_DEREF: DECODE_UINT; printf("LOAD_DEREF " UINT_FMT, unum); break; case MP_BC_LOAD_NAME: DECODE_QSTR; printf("LOAD_NAME %s", qstr_str(qstr)); break; case MP_BC_LOAD_GLOBAL: DECODE_QSTR; printf("LOAD_GLOBAL %s", qstr_str(qstr)); break; case MP_BC_LOAD_ATTR: DECODE_QSTR; printf("LOAD_ATTR %s", qstr_str(qstr)); break; case MP_BC_LOAD_METHOD: DECODE_QSTR; printf("LOAD_METHOD %s", qstr_str(qstr)); break; case MP_BC_LOAD_BUILD_CLASS: printf("LOAD_BUILD_CLASS"); break; case MP_BC_STORE_FAST_0: printf("STORE_FAST_0"); break; case MP_BC_STORE_FAST_1: printf("STORE_FAST_1"); break; case MP_BC_STORE_FAST_2: printf("STORE_FAST_2"); break; case MP_BC_STORE_FAST_N: DECODE_UINT; printf("STORE_FAST_N " UINT_FMT, unum); break; case MP_BC_STORE_DEREF: DECODE_UINT; printf("STORE_DEREF " UINT_FMT, unum); break; case MP_BC_STORE_NAME: DECODE_QSTR; printf("STORE_NAME %s", qstr_str(qstr)); break; /* case MP_BC_STORE_GLOBAL: DECODE_QSTR; rt_store_global(qstr, POP()); break; */ case MP_BC_STORE_ATTR: DECODE_QSTR; printf("STORE_ATTR %s", qstr_str(qstr)); break; case MP_BC_STORE_SUBSCR: printf("STORE_SUBSCR"); break; case MP_BC_DUP_TOP: printf("DUP_TOP"); break; case MP_BC_DUP_TOP_TWO: printf("DUP_TOP_TWO"); break; case MP_BC_POP_TOP: printf("POP_TOP"); break; /* case MP_BC_ROT_TWO: obj1 = sp[0]; sp[0] = sp[1]; sp[1] = obj1; break; */ case MP_BC_ROT_THREE: printf("ROT_THREE"); break; case MP_BC_JUMP: DECODE_SLABEL; printf("JUMP " UINT_FMT, ip + unum - ip_start); break; case MP_BC_POP_JUMP_IF_TRUE: DECODE_SLABEL; printf("POP_JUMP_IF_TRUE " UINT_FMT, ip + unum - ip_start); break; case MP_BC_POP_JUMP_IF_FALSE: DECODE_SLABEL; printf("POP_JUMP_IF_FALSE " UINT_FMT, ip + unum - ip_start); break; /* case MP_BC_JUMP_IF_TRUE_OR_POP: DECODE_SLABEL; if (rt_is_true(*sp)) { ip += unum; } else { sp++; } break; case MP_BC_JUMP_IF_FALSE_OR_POP: DECODE_SLABEL; if (rt_is_true(*sp)) { sp++; } else { ip += unum; } break; */ case MP_BC_SETUP_EXCEPT: DECODE_ULABEL; // except labels are always forward printf("SETUP_EXCEPT " UINT_FMT, ip + unum - ip_start); break; case MP_BC_END_FINALLY: // if TOS is an exception, reraises the exception (3 values on TOS) // if TOS is an integer, does something else // if TOS is None, just pops it and continues // else error printf("END_FINALLY"); break; case MP_BC_GET_ITER: printf("GET_ITER"); break; case MP_BC_FOR_ITER: DECODE_ULABEL; // the jump offset if iteration finishes; for labels are always forward printf("FOR_ITER " UINT_FMT, ip + unum - ip_start); break; case MP_BC_POP_BLOCK: // pops block and restores the stack printf("POP_BLOCK"); break; case MP_BC_POP_EXCEPT: // pops block, checks it's an exception block, and restores the stack, saving the 3 exception values to local threadstate printf("POP_EXCEPT"); break; /* case MP_BC_UNARY_OP: unum = *ip++; *sp = rt_unary_op(unum, *sp); break; */ case MP_BC_BINARY_OP: unum = *ip++; printf("BINARY_OP " UINT_FMT, unum); break; case MP_BC_COMPARE_OP: unum = *ip++; printf("COMPARE_OP " UINT_FMT, unum); break; case MP_BC_BUILD_TUPLE: DECODE_UINT; printf("BUILD_TUPLE " UINT_FMT, unum); break; case MP_BC_BUILD_LIST: DECODE_UINT; printf("BUILD_LIST " UINT_FMT, unum); break; /* 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 MP_BC_BUILD_MAP: DECODE_UINT; printf("BUILD_MAP " UINT_FMT, unum); break; /* case MP_BC_STORE_MAP: sp += 2; rt_store_map(sp[0], sp[-2], sp[-1]); break; 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 MP_BC_BUILD_SET: DECODE_UINT; printf("BUILD_SET " UINT_FMT, unum); break; case MP_BC_SET_ADD: DECODE_UINT; printf("SET_ADD " UINT_FMT, unum); break; case MP_BC_UNPACK_SEQUENCE: DECODE_UINT; printf("UNPACK_SEQUENCE " UINT_FMT, unum); break; case MP_BC_MAKE_FUNCTION: DECODE_UINT; printf("MAKE_FUNCTION " UINT_FMT, unum); break; case MP_BC_MAKE_CLOSURE: DECODE_UINT; printf("MAKE_CLOSURE " UINT_FMT, unum); break; case MP_BC_CALL_FUNCTION: DECODE_UINT; printf("CALL_FUNCTION n=" UINT_FMT " nkw=" UINT_FMT, unum & 0xff, (unum >> 8) & 0xff); break; case MP_BC_CALL_METHOD: DECODE_UINT; printf("CALL_METHOD n=" UINT_FMT " nkw=" UINT_FMT, unum & 0xff, (unum >> 8) & 0xff); break; case MP_BC_RETURN_VALUE: printf("RETURN_VALUE"); break; /* case MP_BC_YIELD_VALUE: nlr_pop(); *ip_in_out = ip; fastn[0] = fast0; fastn[1] = fast1; fastn[2] = fast2; *sp_in_out = sp; return true; */ default: printf("code %p, byte code 0x%02x not implemented\n", ip, op); assert(0); return; } printf("\n"); } }