DSP Hotline TechBits: .asect Directive is Obsolete

Question: Since the .asect directive is obsolete, what do I do in its place ?

Answer: Replace the .asect line with the .sect line and modify your linker command file. The .asect was used to specify a run address that was different than the load address. This is now done with the linker. Here is the assembly and linker command file with the .asect:


; assembly file
        .asect  ".test", 809800h    ; make this the run address
        .label  loadaddr
start:  ldi     r0,r0
 
/* linker command file */
-m c3x.map
-o c3x.out
-w
-e start
MEMORY
{
   RAM0:   org = 0x00809800 len = 0x00000400
   RAM1:   org = 0x00809c00 len = 0x00000400
}
SECTIONS
{
   .test:  > RAM1
}
 
 
Here are the files without the .asect:
 
; assembly file
        .sect   ".test"
        .label  loadaddr
start:
        ldi     r0,r0
 
/* linker command file */
-m c3x.map
-o c3x.out
-w
-e start
MEMORY
{
   RAM0:   org = 0x00809800 len = 0x00000400
   RAM1:   org = 0x00809c00 len = 0x00000400
}
SECTIONS
{
   .test:  load = RAM1  run = RAM0
}
 
You could also use:
 
/* linker command file */
-m c3x.map
-o c3x.out
-w
-e start
MEMORY
{
   RAM0:   org = 0x00809800 len = 0x00000400
   RAM1:   org = 0x00809c00 len = 0x00000400
}
SECTIONS
{
   .test:  load = RAM1  run = 0x809800
}