sign              452 src/exec.c         WORD sign = sys->cpu->gr[r] & 0x8000;
sign              461 src/exec.c         sys->cpu->gr[r] = sign | (sys->cpu->gr[r] & 0x7FFF);
sign              467 src/exec.c         if(sign > 0x0) {
sign              481 src/exec.c         WORD sign = sys->cpu->gr[r] & 0x8000;
sign              489 src/exec.c             if(sign > 0) {
sign              493 src/exec.c         sys->cpu->gr[r] = sign | sys->cpu->gr[r];
sign              499 src/exec.c         if(sign > 0x0) {