diff options
Diffstat (limited to 'lib/ruby_vm/mjit/assembler.rb')
| -rw-r--r-- | lib/ruby_vm/mjit/assembler.rb | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/ruby_vm/mjit/assembler.rb b/lib/ruby_vm/mjit/assembler.rb index e50cbdf600..ad197fbc14 100644 --- a/lib/ruby_vm/mjit/assembler.rb +++ b/lib/ruby_vm/mjit/assembler.rb @@ -3,8 +3,9 @@ module RubyVM::MJIT # 32-bit memory access class DwordPtr < Data.define(:reg, :disp); end - # C call argument registers - C_ARG_OPNDS = [:rdi, :rsi, :rdx, :rcx, :r8, :r9] + # SystemV x64 calling convention + C_ARGS = [:rdi, :rsi, :rdx, :rcx, :r8, :r9] + C_RET = :rax # https://www.intel.com/content/dam/develop/public/us/en/documents/325383-sdm-vol-2abcd.pdf # Mostly an x86_64 assembler, but this also has some stuff that is useful for any architecture. |