diff --git a/sys/src/cmd/5l/asm.c b/sys/src/cmd/5l/asm.c
index 46e07ebc5..81f5e7f55 100644
--- a/sys/src/cmd/5l/asm.c
+++ b/sys/src/cmd/5l/asm.c
@@ -1522,6 +1522,7 @@ oprrr(int a, int sc)
 	case ASLL:	return o | (0xd<<21) | (0<<5);
 	case ASRL:	return o | (0xd<<21) | (1<<5);
 	case ASRA:	return o | (0xd<<21) | (2<<5);
+	case AROR:	return o | (0xd<<21) | (3<<5);
 	case ASWI:	return o | (0xf<<24);
 
 	/* old arm 7500 fp using coproc 1 (1<<8) */
diff --git a/sys/src/cmd/5l/sched.c b/sys/src/cmd/5l/sched.c
index cad8491d1..4dfe7d62b 100644
--- a/sys/src/cmd/5l/sched.c
+++ b/sys/src/cmd/5l/sched.c
@@ -288,6 +288,7 @@ regused(Sch *s, Prog *realp)
 	case ASLL:
 	case ASRA:
 	case ASRL:
+	case AROR:
 	case ASUB:
 	case AEOR:
 
diff --git a/sys/src/cmd/5l/span.c b/sys/src/cmd/5l/span.c
index 17565e8fe..3cbe787ab 100644
--- a/sys/src/cmd/5l/span.c
+++ b/sys/src/cmd/5l/span.c
@@ -726,6 +726,7 @@ buildop(void)
 		case ASLL:
 			oprange[ASRL] = oprange[r];
 			oprange[ASRA] = oprange[r];
+			oprange[AROR] = oprange[r];
 			break;
 		case AMUL:
 			oprange[AMULU] = oprange[r];