sign              461 src/exec.c         WORD sign = sys->cpu->gr[r] & 0x8000;
sign              470 src/exec.c         sys->cpu->gr[r] = sign | (sys->cpu->gr[r] & 0x7FFF);
sign              476 src/exec.c         if(sign > 0x0) {
sign              490 src/exec.c         WORD sign = sys->cpu->gr[r] & 0x8000;
sign              498 src/exec.c             if(sign > 0) {
sign              502 src/exec.c         sys->cpu->gr[r] = sign | sys->cpu->gr[r];
sign              508 src/exec.c         if(sign > 0x0) {