SF                150 src/exec.c             sys->cpu->fr += SF;
SF                260 src/exec.c             sys->cpu->fr += SF;
SF                319 src/exec.c             sys->cpu->fr += SF;
SF                400 src/exec.c             sys->cpu->fr = SF;
SF                424 src/exec.c             sys->cpu->fr = SF;
SF                464 src/exec.c             sys->cpu->fr += SF;
SF                496 src/exec.c             sys->cpu->fr += SF;
SF                522 src/exec.c             sys->cpu->fr += SF;
SF                548 src/exec.c             sys->cpu->fr += SF;
SF                560 src/exec.c         if((sys->cpu->fr & (SF | ZF)) == 0) {
SF                570 src/exec.c         if((sys->cpu->fr & SF) > 0) {