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cpu.x86.(32,64).bootstrap: get rid of PUSH malarky 

In the function prologue, move the stack pointer once after the stack frame is set up instead of PUSHing the stack frame piece by piece.
db4
Joe Groff 2011-10-21 10:53:44 -07:00
parent 1a673e30f5
commit 68518e741e
2 changed files with 10 additions and 10 deletions
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10
basis/cpu/x86/32/bootstrap.factor
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@ -34,12 +34,12 @@ IN: bootstrap.x86
0 CALL f rc-relative rel-dlsym ; 0 CALL f rc-relative rel-dlsym ;
[ [
! save stack frame size ! store entry point
stack-frame-size PUSH ESP bootstrap-cell 2 * neg [+] 0 MOV rc-absolute-cell rel-this
! push entry point ! store stack frame size
0 PUSH rc-absolute-cell rel-this ESP bootstrap-cell neg [+] stack-frame-size MOV
! alignment ! alignment
ESP stack-frame-size 3 bootstrap-cells - SUB ESP stack-frame-size bootstrap-cell - SUB
] jit-prolog jit-define ] jit-prolog jit-define
[ [

10
basis/cpu/x86/64/bootstrap.factor
View File

@ -36,12 +36,12 @@ IN: bootstrap.x86
[ [
! load entry point ! load entry point
RAX 0 MOV rc-absolute-cell rel-this RAX 0 MOV rc-absolute-cell rel-this
! save stack frame size ! store entry point
stack-frame-size PUSH RSP bootstrap-cell 2 * neg [+] RAX MOV
! push entry point ! store stack frame size
RAX PUSH RSP bootstrap-cell neg [+] stack-frame-size MOV
! alignment ! alignment
RSP stack-frame-size 3 bootstrap-cells - SUB RSP stack-frame-size bootstrap-cell - SUB
] jit-prolog jit-define ] jit-prolog jit-define
[ [