1. 2020-12-14 [PATCH 9/9] semihosting: Implement SYS_ISERROR qemu-deve Keith Packard via 2. 2020-12-14 [PATCH 9/9] semihosting: Implement SYS_ISERROR qemu-arm Keith Packard 3. 2020-12-14 [PATCH 9/9] semihosting: Implement SYS_ISERROR qemu-risc Keith Packard