unsigned type_width(type_t type) { if (type_is_array(type)) { const unsigned elem_w = type_width(type_elem(type)); unsigned w = 1; const int ndims = type_dims(type); for (int i = 0; i < ndims; i++) { int64_t low, high; range_bounds(type_dim(type, i), &low, &high); w *= MAX(high - low + 1, 0) * elem_w; } return w; } else if (type_is_record(type)) { type_t base = type_base_recur(type); unsigned w = 0; const int nfields = type_fields(base); for (int i = 0; i < nfields; i++) w += type_width(tree_type(type_field(base, i))); return w; } else return 1; }
static void vcd_process_signal(tree_t d, int *next_key) { type_t type = tree_type(d); type_t base = type_base_recur(type); vcd_data_t *data = xmalloc(sizeof(vcd_data_t)); memset(data, '\0', sizeof(vcd_data_t)); int msb = 0, lsb = 0; if (type_is_array(type)) { if (type_dims(type) > 1) { warn_at(tree_loc(d), "cannot represent multidimensional arrays " "in VCD format"); free(data); return; } range_t r = type_dim(type, 0); int64_t low, high; range_bounds(r, &low, &high); data->dir = r.kind; data->size = high - low + 1; msb = assume_int(r.left); lsb = assume_int(r.right); type_t elem = type_elem(type); if (!vcd_can_fmt_chars(elem, data)) { warn_at(tree_loc(d), "cannot represent arrays of type %s " "in VCD format", type_pp(elem)); free(data); return; } } else { switch (type_kind(base)) { case T_INTEGER: { int64_t low, high; range_bounds(type_dim(type, 0), &low, &high); data->size = ilog2(high - low + 1); data->fmt = vcd_fmt_int; } break; case T_ENUM: if (vcd_can_fmt_chars(type, data)) { data->size = 1; break; } // Fall-through default: warn_at(tree_loc(d), "cannot represent type %s in VCD format", type_pp(type)); free(data); return; } } const char *name_base = strrchr(istr(tree_ident(d)), ':') + 1; const size_t base_len = strlen(name_base); char name[base_len + 64]; strncpy(name, name_base, base_len + 64); if (type_is_array(type)) snprintf(name + base_len, 64, "[%d:%d]\n", msb, lsb); tree_add_attr_ptr(d, vcd_data_i, data); data->watch = rt_set_event_cb(d, vcd_event_cb, data, true); vcd_key_fmt(*next_key, data->key); fprintf(vcd_file, "$var reg %d %s %s $end\n", (int)data->size, data->key, name); ++(*next_key); }
static void fst_process_signal(tree_t d) { type_t type = tree_type(d); type_t base = type_base_recur(type); fst_data_t *data = xmalloc(sizeof(fst_data_t)); memset(data, '\0', sizeof(fst_data_t)); int msb = 0, lsb = 0; enum fstVarType vt; enum fstSupplementalDataType sdt; if (type_is_array(type)) { if (type_dims(type) > 1) { warn_at(tree_loc(d), "cannot represent multidimensional arrays " "in FST format"); free(data); return; } range_t r = type_dim(type, 0); int64_t low, high; range_bounds(r, &low, &high); data->dir = r.kind; data->size = high - low + 1; msb = assume_int(r.left); lsb = assume_int(r.right); type_t elem = type_elem(type); if (!fst_can_fmt_chars(elem, data, &vt, &sdt)) { warn_at(tree_loc(d), "cannot represent arrays of type %s " "in FST format", type_pp(elem)); free(data); return; } else { ident_t ident = type_ident(base); if (ident == unsigned_i) sdt = FST_SDT_VHDL_UNSIGNED; else if (ident == signed_i) sdt = FST_SDT_VHDL_SIGNED; } } else { switch (type_kind(base)) { case T_INTEGER: { ident_t ident = type_ident(type); if (ident == natural_i) sdt = FST_SDT_VHDL_NATURAL; else if (ident == positive_i) sdt = FST_SDT_VHDL_POSITIVE; else sdt = FST_SDT_VHDL_INTEGER; int64_t low, high; range_bounds(type_dim(type, 0), &low, &high); vt = FST_VT_VCD_INTEGER; data->size = ilog2(high - low + 1); data->fmt = fst_fmt_int; } break; case T_ENUM: if (!fst_can_fmt_chars(type, data, &vt, &sdt)) { ident_t ident = type_ident(base); if (ident == std_bool_i) sdt = FST_SDT_VHDL_BOOLEAN; else if (ident == std_char_i) sdt = FST_SDT_VHDL_CHARACTER; else sdt = FST_SDT_NONE; vt = FST_VT_GEN_STRING; data->size = 0; data->fmt = fst_fmt_enum; } else data->size = 1; break; case T_PHYSICAL: { sdt = FST_SDT_NONE; vt = FST_VT_GEN_STRING; data->size = 0; data->type.units = fst_make_unit_map(type); data->fmt = fst_fmt_physical; } break; default: warn_at(tree_loc(d), "cannot represent type %s in FST format", type_pp(type)); free(data); return; } } enum fstVarDir dir = FST_VD_IMPLICIT; switch (tree_attr_int(d, fst_dir_i, -1)) { case PORT_IN: dir = FST_VD_INPUT; break; case PORT_OUT: dir = FST_VD_OUTPUT; break; case PORT_INOUT: dir = FST_VD_INOUT; break; case PORT_BUFFER: dir = FST_VD_BUFFER; break; } const char *name_base = strrchr(istr(tree_ident(d)), ':') + 1; const size_t base_len = strlen(name_base); char name[base_len + 64]; strncpy(name, name_base, base_len + 64); if (type_is_array(type)) snprintf(name + base_len, 64, "[%d:%d]\n", msb, lsb); data->handle = fstWriterCreateVar2( fst_ctx, vt, dir, data->size, name, 0, type_pp(type), FST_SVT_VHDL_SIGNAL, sdt); tree_add_attr_ptr(d, fst_data_i, data); data->watch = rt_set_event_cb(d, fst_event_cb, data, true); }
static bool group_name(tree_t target, group_nets_ctx_t *ctx, int start, int n) { switch (tree_kind(target)) { case T_REF: group_ref(target, ctx, start, n); return true; case T_ARRAY_REF: { tree_t value = tree_value(target); type_t type = tree_type(value); if (type_is_unconstrained(type)) return false; int offset = 0; const int nparams = tree_params(target); for (int i = 0; i < nparams; i++) { tree_t index = tree_value(tree_param(target, i)); const int stride = type_width(type_elem(type)); if (tree_kind(index) != T_LITERAL) { if (i > 0) return false; const int twidth = type_width(type); for (int j = 0; j < twidth; j += stride) group_name(value, ctx, start + j, n); return true; } else { if (i > 0) { range_t type_r = range_of(type, i); int64_t low, high; range_bounds(type_r, &low, &high); offset *= high - low + 1; } offset += stride * rebase_index(type, i, assume_int(index)); } } return group_name(value, ctx, start + offset, n); } case T_ARRAY_SLICE: { tree_t value = tree_value(target); type_t type = tree_type(value); if (type_is_unconstrained(type)) return false; // Only in procedure range_t slice = tree_range(target, 0 ); if (tree_kind(slice.left) != T_LITERAL || tree_kind(slice.right) != T_LITERAL) return false; int64_t low, high; range_bounds(slice, &low, &high); const int64_t low0 = rebase_index(type, 0, assume_int(slice.left)); const int stride = type_width(type_elem(type)); return group_name(value, ctx, start + low0 * stride, n); } case T_RECORD_REF: { tree_t value = tree_value(target); type_t rec = tree_type(value); const int offset = record_field_to_net(rec, tree_ident(target)); return group_name(value, ctx, start + offset, n); } case T_AGGREGATE: case T_LITERAL: // This can appear due to assignments to open ports with a // default value return true; default: fatal_at(tree_loc(target), "tree kind %s not yet supported for offset " "calculation", tree_kind_str(tree_kind(target))); } }
static int shell_cmd_show(ClientData cd, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) { const char *help = "show - Display simulation objects\n" "\n" "Usage: show LIST...\n" "\n" "Prints a representation of each simulation object in LIST. Typically\n" "this will be a list of signal names and the output will show their\n" "current value.\n" "\n" "Examples:\n" " show {:top:foo} Print value of signal :top_foo\n" " show [signals] Print value of all signals\n"; if (show_help(objc, objv, help)) return TCL_OK; if (objc == 1) { warnf("nothing to show (try -help for usage)"); return TCL_OK; } hash_t *decl_hash = (hash_t *)cd; for (int i = 1; i < objc; i++) { int length; if (Tcl_ListObjLength(interp, objv[i], &length) != TCL_OK) return TCL_ERROR; for (int j = 0; j < length; j++) { Tcl_Obj *obj; if (Tcl_ListObjIndex(interp, objv[i], j, &obj) != TCL_OK) return TCL_ERROR; const char *str = Tcl_GetString(obj); tree_t t = hash_get(decl_hash, ident_new(str)); if (t == NULL) return tcl_error(interp, "object not found: %s", str); tree_kind_t kind = tree_kind(t); switch (kind) { case T_SIGNAL_DECL: { size_t len = 1; type_t type = tree_type(t); while (type_is_array(type)) { int64_t low = 0, high = 0; range_bounds(type_dim(type, 0), &low, &high); len *= (high - low + 1); type = type_elem(type); } slave_read_signal_msg_t msg = { .index = tree_index(t), .len = len }; slave_post_msg(SLAVE_READ_SIGNAL, &msg, sizeof(msg)); const size_t rsz = sizeof(reply_read_signal_msg_t) + (msg.len * sizeof(uint64_t)); reply_read_signal_msg_t *reply = xmalloc(rsz); slave_get_reply(REPLY_READ_SIGNAL, reply, rsz); const char *type_str = type_pp(type); const char *short_name = strrchr(type_str, '.'); printf("%-30s%-20s%s\n", str, (short_name != NULL ? short_name + 1 : type_str), pprint(t, reply->values, msg.len)); free(reply); } break; default: return tcl_error(interp, "cannot show tree kind %s", tree_kind_str(kind)); } } } return TCL_OK; }