diff options
| -rw-r--r-- | examples/tiny_vm.rs | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/examples/tiny_vm.rs b/examples/tiny_vm.rs index bdeb202..992b684 100644 --- a/examples/tiny_vm.rs +++ b/examples/tiny_vm.rs @@ -36,9 +36,6 @@ //! } //! ``` -#[cfg(not(any(target_arch = "x86_64", target_os = "linux")))] -compile_error!("Only supported on x86_64 with SystemV abi"); - use juicebox_asm::insn::*; use juicebox_asm::Runtime; use juicebox_asm::{Asm, Imm16, Imm64, Label, MemOp, Reg16, Reg64}; @@ -258,6 +255,7 @@ impl TinyVm { } } + #[cfg(all(any(target_arch = "x86_64", target_os = "linux")))] /// Translate the bb at the current pc and return a JitFn pointer to it. fn translate_next_bb(&mut self) -> JitFn { let mut bb = Asm::new(); @@ -268,13 +266,15 @@ impl TinyVm { pc = pc.wrapping_add(1); - // JIT ABI. + // JIT abi: JitFn -> JitRet + // + // According to SystemV abi: // enter // rdi => regs // rsi => dmem // exit - // rax => JitRet(0, - // rdx => 1) + // rax => JitRet.0 + // rdx => JitRet.1 // Generate memory operand into regs for guest register. let reg_op = |r: TinyReg| { |