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.

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