On 07/11/2020 14:52, Philippe Mathieu-Daudé wrote:
Cc'ing SPARC maintainers ...
On 11/7/20 12:51 AM, Peter Maydell wrote:
The q800 board code connects both of the IRQ outputs of the ESCC
to the same pic[3] qemu_irq. Connecting two qemu_irqs outputs directly
to the same input is not valid as
Le 07/11/2020 à 00:51, Peter Maydell a écrit :
> The q800 board code connects both of the IRQ outputs of the ESCC
> to the same pic[3] qemu_irq. Connecting two qemu_irqs outputs directly
> to the same input is not valid as it produces subtly wrong behaviour
> (for instance if both the IRQ lines
> On 11/7/20 12:51 AM, Peter Maydell wrote:
>> The q800 board code connects both of the IRQ outputs of the ESCC
>> to the same pic[3] qemu_irq. Connecting two qemu_irqs outputs directly
>> to the same input is not valid as it produces subtly wrong behaviour
>> (for instance if both the IRQ lines
Cc'ing SPARC maintainers ...
On 11/7/20 12:51 AM, Peter Maydell wrote:
> The q800 board code connects both of the IRQ outputs of the ESCC
> to the same pic[3] qemu_irq. Connecting two qemu_irqs outputs directly
> to the same input is not valid as it produces subtly wrong behaviour
> (for instance
The q800 board code connects both of the IRQ outputs of the ESCC
to the same pic[3] qemu_irq. Connecting two qemu_irqs outputs directly
to the same input is not valid as it produces subtly wrong behaviour
(for instance if both the IRQ lines are high, and then one goes
low, the PIC input will see
