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Correct comment explaining env flags [ci skip]

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We use 4 values for env flags now, which also shifted over the frame
flags by one bit.
This commit is contained in:
John Hawthorn 2022-07-13 00:16:46 -07:00
parent 509d0a9299
commit b8247a1669
1 changed files with 2 additions and 2 deletions
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4
vm_core.h
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@ -1232,10 +1232,10 @@ typedef rb_control_frame_t *
enum vm_frame_env_flags { enum vm_frame_env_flags {
/* Frame/Environment flag bits: /* Frame/Environment flag bits:
* MMMM MMMM MMMM MMMM ____ _FFF FFFF EEEX (LSB) * MMMM MMMM MMMM MMMM ____ FFFF FFFE EEEX (LSB)
* *
* X : tag for GC marking (It seems as Fixnum) * X : tag for GC marking (It seems as Fixnum)
* EEE : 3 bits Env flags * EEE : 4 bits Env flags
* FF..: 7 bits Frame flags * FF..: 7 bits Frame flags
* MM..: 15 bits frame magic (to check frame corruption) * MM..: 15 bits frame magic (to check frame corruption)
*/ */