Error STDIO_DK.C

Hi, experts
I am trying to compile my code with Rabbit6700 in Dynamic10.70. This error happened.

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line 372 : ERROR STDIO_DK.C : Value 32001 is out of range, valid values are between 0 and 255
line 465 : ERROR STDIO_DK.C : Value 32001 is out of range, valid values are between 0 and 255
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When I clicked on this error, it opened STDIO_DK.C, an highlighted on line 372 and line 465(pasted below)

ld (sp+@SP+saveix), ix

and

ld ix, (sp+@SP+saveix

I am not familar with assembly code,
a) where can I find a document about assembly code?
b) could you send me some comments on this error?

Your text to link hereā€¦

I think in your application you are trying to put out of range value in the variable. Check your code properly.

Thanks.