GEN_TEST_CNTL
OUTREGM(GEN_TEST_CNTL, bShow ? HWCURSOR_ENABLE : 0, HWCURSOR_ENABLE);
uint32 genTestCntl = INREG(GEN_TEST_CNTL) & ~GUI_ENGINE_ENABLE;
OUTREG(GEN_TEST_CNTL, genTestCntl);
OUTREG(GEN_TEST_CNTL, genTestCntl | GUI_ENGINE_ENABLE);