9.8.2.3 Special Characters
; and # are the line comment characters.
Sub-instructions may be executed in order, in reverse-order, or in parallel.
Instructions listed in the standard one-per-line format will be executed sequentially.
To specify the executing order, use the following symbols:
- ->
- Sequential with instruction on the left first.
- <-
- Sequential with instruction on the right first.
- ||
- Parallel
The D10V syntax allows either one instruction per line, one instruction per line with
the execution symbol, or two instructions per line. For example
abs a1 -> abs r0- Execute these sequentially. The instruction on the right is in the right
container and is executed second.
abs r0 <- abs a1- Execute these reverse-sequentially. The instruction on the right is in the right
container, and is executed first.
ld2w r2,@r8+ || mac a0,r0,r7- Execute these in parallel.
ld2w r2,@r8+ ||mac a0,r0,r7- Two-line format. Execute these in parallel.
ld2w r2,@r8+mac a0,r0,r7- Two-line format. Execute these sequentially. Assembler will
put them in the proper containers.
ld2w r2,@r8+ ->mac a0,r0,r7- Two-line format. Execute these sequentially. Same as above but
second instruction will always go into right container.
Since $ has no special meaning, you may use it in symbol names.