(筆記) t_vpi_value struct (SOC) (Verilog PLI)
Abstract
寫Verilog PLI，最常遇到的就是t_vpi_value這個struct， 每次都要特別翻書，因此特別記下來。
Introduction
1 typedef struct t_vpi_value {
2 PLI_INT32 format; /* vpiBinStrVal, vpiOctStrVal,
3 vpiDecStrVal, vpiHexStrVal,
4 vpiScalarVal, vpiIntVal,
5 vpiRealVal, vpiStringVal,
6 vpiVectorVal, vpiTimeVal,
7 vpiStrengthVal, vpiSuppressVal,
8 vpiObjTypeVal */
9 union {
10 PLI_BYTE8 *str; /* if any string format */
11 PLI_INT32 scalar; /* if vpiScalarVal: one of vpi0, vpi1,*/
12 /* vpiX, vpiZ, vpiH, vpiL, vpiDontCare*/
13 PLI_INT32 integer; /* if vpiIntVal format */
14 double real; /* if vpiRealVal format */
15 struct t_vpi_time *time; /* if vpiTimeVal */
16 struct t_vpi_vecval *vector; /* if vpiVectorVal */
17 struct t_vpi_strengthval *strength; /* if vpiStrengthVal */
18 PLI_BYTE8 *misc; /* not used */
19 } value;
20 } s_vpi_value, *p_vpi_value;
2 PLI_INT32 format; /* vpiBinStrVal, vpiOctStrVal,
3 vpiDecStrVal, vpiHexStrVal,
4 vpiScalarVal, vpiIntVal,
5 vpiRealVal, vpiStringVal,
6 vpiVectorVal, vpiTimeVal,
7 vpiStrengthVal, vpiSuppressVal,
8 vpiObjTypeVal */
9 union {
10 PLI_BYTE8 *str; /* if any string format */
11 PLI_INT32 scalar; /* if vpiScalarVal: one of vpi0, vpi1,*/
12 /* vpiX, vpiZ, vpiH, vpiL, vpiDontCare*/
13 PLI_INT32 integer; /* if vpiIntVal format */
14 double real; /* if vpiRealVal format */
15 struct t_vpi_time *time; /* if vpiTimeVal */
16 struct t_vpi_vecval *vector; /* if vpiVectorVal */
17 struct t_vpi_strengthval *strength; /* if vpiStrengthVal */
18 PLI_BYTE8 *misc; /* not used */
19 } value;
20 } s_vpi_value, *p_vpi_value;
