/* see contrib/loaders/flash/stm32f2x.S for src */
 
        static const uint16_t stm32x_flash_write_code_16[] = {
-//     00000000 <write>:
-          0x4b07, //           ldr     r3, [pc, #28]   (20 <STM32_PROG16>)
-          0x6123,  //          str     r3, [r4, #16]
-       0xf830, 0x3b02,         //ldrh.w        r3, [r0], #2
-       0xf821, 0x3b02,         //strh.w        r3, [r1], #2
-
-       //0000000c <busy>:
-       0x68e3,         //ldr   r3, [r4, #12]
-0xf413, 0x3f80, //     tst.w   r3, #65536      ; 0x10000
-0xd0fb,        //beq.n c <busy>
-0xf013, 0x0ff0,        //tst.w r3, #240        ; 0xf0
-0xd101,        //bne.n 1e <exit>
-0x3a01,        //subs  r2, #1
-0xd1f0,        //bne.n 0 <write>
-                               //0000001e <exit>:
-       0xbe00, //              bkpt    0x0000
-
-       //00000020 <STM32_PROG16>:
-       0x0101, 0x0000, //      .word   0x00000101
-
+               /* 00000000 <write>: */
+               0x4b07,                         /* ldr          r3, [pc, #28] (20 <STM32_PROG16>) */
+               0x6123,                         /* str          r3, [r4, #16] */
+               0xf830, 0x3b02,         /* ldrh.w       r3, [r0], #2 */
+               0xf821, 0x3b02,         /* strh.w       r3, [r1], #2 */
+
+               /* 0000000c <busy>: */
+               0x68e3,                         /* ldr          r3, [r4, #12] */
+               0xf413, 0x3f80,         /* tst.w        r3, #65536      ; 0x10000 */
+               0xd0fb,                         /* beq.n        c <busy> */
+               0xf013, 0x0ff0,         /* tst.w        r3, #240        ; 0xf0 */
+               0xd101,                         /* bne.n        1e <exit> */
+               0x3a01,                         /* subs         r2, #1 */
+               0xd1f0,                         /* bne.n        0 <write> */
+                                                       /* 0000001e <exit>: */
+               0xbe00,                         /* bkpt         0x0000 */
+
+               /* 00000020 <STM32_PROG16>: */
+               0x0101, 0x0000,         /* .word        0x00000101 */
        };
 
-       // Flip endian
+       /* Flip endian */
        uint8_t stm32x_flash_write_code[sizeof(stm32x_flash_write_code_16)*2];
        for (unsigned i = 0; i < sizeof(stm32x_flash_write_code_16) / 2; i++)
        {