in src/mockRuntime.ts [194:210]
public step(instruction: boolean, reverse: boolean) {
if (instruction) {
if (reverse) {
this.instruction--;
} else {
this.instruction++;
}
this.sendEvent('stopOnStep');
} else {
if (!this.executeLine(this.currentLine, reverse)) {
if (!this.updateCurrentLine(reverse)) {
this.findNextStatement(reverse, 'stopOnStep');
}
}
}
}