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atimach64gx: Handle disabled display.

This commit is contained in:
joevt 2024-02-28 01:34:37 -08:00 committed by dingusdev
parent 6e094a8edb
commit 1f63342c96
1 changed files with 6 additions and 0 deletions
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6
devices/video/atimach64gx.cpp
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@ -496,6 +496,12 @@ void AtiMach64Gx::crtc_update()
{
uint32_t new_width, new_height;
if (!bit_set(this->regs[ATI_CRTC_GEN_CNTL], ATI_CRTC_ENABLE) ||
bit_set(this->regs[ATI_CRTC_GEN_CNTL], ATI_CRTC_DISPLAY_DIS)
) {
return;
}
// check for unsupported modes and fail early
if (!bit_set(this->regs[ATI_CRTC_GEN_CNTL], ATI_CRTC_EXT_DISP_EN))
ABORT_F("%s: VGA not supported", this->name.c_str());