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Clean up x86 stack frame code a bit more

db4
Slava Pestov 2008-10-05 22:17:56 -05:00
parent f0f53d2e04
commit a5fcb006fb
1 changed files with 5 additions and 7 deletions
basis/cpu/x86/architecture

12
basis/cpu/x86/architecture/architecture.factor
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@ -18,7 +18,7 @@ HOOK: stack-reg cpu ( -- reg )
#! input values to callbacks; the callback has its own
#! stack frame set up, and we want to read the frame
#! set up by the caller.
stack-frame* + cell + stack@ ;
stack-frame* + stack@ ;
: reg-stack ( n reg -- op ) swap cells neg [+] ;
@ -52,20 +52,18 @@ HOOK: prepare-division cpu ( -- )
M: immediate load-literal v>operand swap v>operand MOV ;
M: x86 stack-frame ( n -- i )
3 cells + 16 align cell - ;
3 cells + 16 align ;
M: x86 %save-word-xt ( -- )
temp-reg v>operand 0 MOV rc-absolute-cell rel-this ;
: factor-area-size ( -- n ) 4 cells ;
M: x86 %prologue ( n -- )
dup cell + PUSH
dup PUSH
temp-reg v>operand PUSH
stack-reg swap 2 cells - SUB ;
stack-reg swap 3 cells - SUB ;
M: x86 %epilogue ( n -- )
stack-reg swap ADD ;
stack-reg swap cell - ADD ;
HOOK: %alien-global cpu ( symbol dll register -- )