Take this source code, djasm_bug.asm:

.type "com"
.org 0x100

start:
        mov     dx, lab         ; -> dx = 0x100, ok
        mov     dx, lab - 1     ; -> dx = 0xff, ok
        mov     dx, lab + 0xf   ; -> dx = 0x10f, ok
        mov     dx, lab - 1 + 0xf       ; -> dx = 0xf0, wrong. (0x10e is ok.)

lab = 0x100

Compile with "djasm djasm_bug.asm djasm_bug.com djasm_bug.map".

Check the assembly of the fourth mov dx line.


Right,

						MartinS