NXP Semiconductors LPC1768 - Condition Flags; Examples

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User manual Rev. 3 — 20 December 2013 671 of 841
NXP Semiconductors
UM10360
Chapter 34: Appendix: Cortex-M3 user guide
• bit[0] of the loaded value must be 1 for correct execution, and a branch occurs to this
halfword-aligned address
• if the instruction is conditional, it must be the last instruction in the IT block.
34.2.4.5.4 Condition flags
These instructions do not change the flags.
34.2.4.5.5 Examples
LDR R0, LookUpTable ; Load R0 with a word of data from an address
; labelled as LookUpTable
LDRSB R7, localdata ; Load a byte value from an address labelled
; as localdata, sign extend it to a word
; value, and put it in R7