diff --git a/bootloader.c b/bootloader.c
index 7fbb394..a71e467 100644
--- a/bootloader.c
+++ b/bootloader.c
@@ -194,10 +194,6 @@ extern uint32_t USB_SECTOR_STASH[128];
 #define R32_GPIOA_CFGHR     (*(volatile uint32_t*)0x40010804)
 #define R32_GPIOA_BSHR      (*(volatile uint32_t*)0x40010810)
 
-// #define R16_USBD_EPR(n)     (*(volatile uint16_t*)(0x40005C00 + 4 * (n)))
-// #define R16_USBD_CNTR       (*(volatile uint16_t*)0x40005C40)
-// #define R16_USBD_ISTR       (*(volatile uint16_t*)0x40005C44)
-// #define R16_USBD_DADDR      (*(volatile uint16_t*)0x40005C4C)
 // XXX wrong access size
 extern volatile uint32_t R16_USBD_EPR[16];
 extern volatile uint16_t R16_USBD_CNTR;
diff --git a/startup.S b/startup.S
index 58bf41e..be0bf86 100644
--- a/startup.S
+++ b/startup.S
@@ -87,8 +87,6 @@ _enter_application_code:
 _enter_bootloader:
     sh zero, (a3)
 
-    // xxx testing
-    la sp, 0x20000100
     // Set up global pointer
 .option push
 .option norelax