On 6/17/24 11:57, Ajeet Singh wrote:
+ /*
+ * The carry bit is cleared for no error; set for error.
+ * See arm64/arm64/vm_machdep.c cpu_set_syscall_retval()
+ */
+ pstate = pstate_read(env);
+ if (ret >= 0) {
+ pstate &= ~PSTATE_C;
+ env->xregs[0] = ret;
+ } else if (ret == -TARGET_ERESTART) {
+ env->pc -= 4;
+ break;
+ } else if (ret != -TARGET_EJUSTRETURN) {
+ pstate |= PSTATE_C;
+ env->xregs[0] = -ret;
+ }
+ pstate_write(env, pstate);
No need for full pstate read/write:
env->CF = {0,1};
+ break;
+
+ case EXCP_INTERRUPT:
+ /* Just indicate that signals should be handle ASAP. */
+ break;
+
+ case EXCP_UDEF:
+ force_sig_fault(TARGET_SIGILL, TARGET_ILL_ILLOPN, env->pc);
+ break;
+
+
+ case EXCP_PREFETCH_ABORT:
+ case EXCP_DATA_ABORT:
+ /* We should only arrive here with EC in {DATAABORT, INSNABORT}. */
+ ec = syn_get_ec(env->exception.syndrome);
Nevermind about my question about syndrome.h vs patch 1.
r~
