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| author | Johannes Stoelp <johannes.stoelp@gmail.com> | 2023-12-08 01:05:44 +0100 |
|---|---|---|
| committer | Johannes Stoelp <johannes.stoelp@gmail.com> | 2023-12-08 01:05:44 +0100 |
| commit | 20744b382d4d0226037eab810f312accc28fbfe2 (patch) | |
| tree | 7e6105482a2c9afa91cd0749d2e181ebc223d0cc | |
| parent | 7fe96621631c9782479f67a228fca94112449cae (diff) | |
| download | juicebox-asm-20744b382d4d0226037eab810f312accc28fbfe2.tar.gz juicebox-asm-20744b382d4d0226037eab810f312accc28fbfe2.zip | |
tiny_vm: move cfg to jit compile function and enahce jit abi comment
| -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| { |