solana_rbpf::ebpf
pub const JSLT_IMM: u8 = BPF_JMP | BPF_K | BPF_JSLT; // 197u8
BPF opcode: jslt dst, imm, +off /// PC += off if dst < imm (signed).
jslt dst, imm, +off
PC += off if dst < imm (signed)