SV_REG_ENABLE
enable = sv_indirect_get(sc, SV_REG_ENABLE) | SV_RECORD_ENABLE;
sv_indirect_set(sc, SV_REG_ENABLE, enable);
enable = sv_indirect_get(sc, SV_REG_ENABLE) & ~SV_RECORD_ENABLE;
sv_indirect_set(sc, SV_REG_ENABLE, enable);
enable = sv_indirect_get(sc, SV_REG_ENABLE);
sv_indirect_set(sc, SV_REG_ENABLE, enable);
enable = sv_indirect_get(sc, SV_REG_ENABLE) & ~SV_PLAY_ENABLE;
sv_indirect_set(sc, SV_REG_ENABLE, enable);