test/20260206$ cat test.asm

        org 0 ORGDEFINE
relocated_offset_zero equ $ - (0 ORGDEFINE)

        dw label
        dw (label - relocated_offset_zero)
        dw (label - relocated_offset_zero + 15) / 16

        times 26h nop
label:
test/20260206$ nasm test.asm -l /dev/stderr -DORGDEFINE && podhex test
     1
     2                                          org 0 ORGDEFINE
     3                                  relocated_offset_zero equ $ - (0 ORGDEFINE)
     4
     5 00000000 [2C00]                          dw label
     6 00000002 2C00                            dw (label - relocated_offset_zero)
     7 00000004 0300                            dw (label - relocated_offset_zero + 15) / 16
     8
     9 00000006 90<rep 26h>                     times 26h nop
    10                                  label:
000000 2C 00 2C 00 03 00 90 90-90 90 90 90 90 90 90 90  >,.,.............<
000010 90 90 90 90 90 90 90 90-90 90 90 90 90 90 90 90  >................<
000020 90 90 90 90 90 90 90 90-90 90 90 90              >............<
00002C
test/20260206$ nasm test.asm -l /dev/stderr -DORGDEFINE='+256' && podhex test
     1
     2                                          org 0 ORGDEFINE
     3                                  relocated_offset_zero equ $ - (0 ORGDEFINE)
     4
     5 00000000 [2C00]                          dw label
     6 00000002 2C01                            dw (label - relocated_offset_zero)
     7 00000004 1300                            dw (label - relocated_offset_zero + 15) / 16
     8
     9 00000006 90<rep 26h>                     times 26h nop
    10                                  label:
000000 2C 01 2C 01 13 00 90 90-90 90 90 90 90 90 90 90  >,.,.............<
000010 90 90 90 90 90 90 90 90-90 90 90 90 90 90 90 90  >................<
000020 90 90 90 90 90 90 90 90-90 90 90 90              >............<
00002C
test/20260206$