> Manual commit: Better info r

U201614531
recolic
Linux RECOLICPC 5.4.2-arch1-1 #1 SMP PREEMPT Thu, 05 Dec 2019 12:29:40 +0000 x86_64 GNU/Linux
 13:23:16 up 2 days, 20:41,  1 user,  load average: 1.50, 1.42, 1.21
ae29316cbf5d91c7bd90bd912203e525524d324f

nemu/src/monitor/debug/ui.cc

@@ -131,9 +131,10 @@ using namespace rlib;
 using namespace rlib::literals;
 
 #include <sstream>
+#include <iomanip>
 
 auto dumpReg(uint32_t val) {
-  return string("[32b={}{}, L16b={}{}]").format(std::hex, val, (uint16_t)val, std::dec);
+  return string("{}{}[32b=0x{}{}, {}L16b=0x{}{}]").format(std::setfill('0'), std::setw(8), std::hex, val, std::setw(4), (uint16_t)val, std::dec);
 }
 
 static int cmd_info(char *args) {