tidying

Author: abarisani

src/testing/testing_tamago_riscv64.go src/testing/testing_tamago.go

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build tamago && riscv64
+//go:build tamago && (arm || riscv64)
 
 package testing
 
@@ -20,7 +20,7 @@ var ramSize uint64 = 0x20000000 // 512MB
 //go:linkname ramStackOffset runtime.ramStackOffset
 var ramStackOffset uint64 = 0x100
 
-// defined in testing_tamago_riscv64.s
+// defined in testing_tamago_*.s
 func sys_exit(code int32)
 func sys_write(c *byte)
 func sys_clock_gettime() (ns int64)