.ltorg and relative address issues

alexeypelykh — Mon, 01 Apr 2013 13:56:06 GMT

Here's part of source file:

...

.ltorg

...

ldr r3,=0x7FFFFFF

ldr r3,=0x8000001

ldr r3,=0x8000000

ldr r5,=0x8000000

ldr r5,=0x8000001

...

Compiled version looks like:

0x00002e34: ldr r3,[pc,#0x250]

0x00002e38: ldr r3,[pc,#0x250]

0x00002e3c: ldr r3,0x00003514 (0x3514)
0x00002e40: ldr r5,0x0000351C (0x351c)

0x00002e44: ldr r5,[pc,#0x244]

As you can see, mwasmarm produces incorrect instructions. This issue is connected with ltorg for sure, since if to move these instuctions around, this issue fixes by itself. Probably this is issue in mwasmarm itself, since in this situation seems that it behaves itself too smart. Has anyone experienced similar issue?

CodeWarrior for MCUのトピック.ltorg and relative address issues

.ltorg and relative address issues