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cpu.ppc: work in progress

db4
Slava Pestov 2009-08-21 18:48:34 -05:00
parent cb1dca3da7
commit 9ab8734441
1 changed files with 33 additions and 31 deletions
basis/cpu/ppc

64
basis/cpu/ppc/ppc.factor
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@ -89,11 +89,8 @@ HOOK: reserved-area-size os ( -- n )
: local@ ( n -- x )
reserved-area-size param-save-size + + ; inline
: spill-integer@ ( n -- offset )
spill-integer-offset local@ ;
: spill-float@ ( n -- offset )
spill-float-offset local@ ;
: spill@ ( n -- offset )
spill-offset local@ ;
! Some FP intrinsics need a temporary scratch area in the stack
! frame, 8 bytes in size. This is in the param-save area so it
@ -275,9 +272,11 @@ M:: ppc %float>integer ( dst src -- )
fp-scratch-reg 1 0 scratch@ STFD
dst 1 4 scratch@ LWZ ;
M: ppc %copy ( dst src -- ) MR ;
M: ppc %copy-float ( dst src -- ) FMR ;
M: ppc %copy ( dst src rep -- )
{
{ int-rep [ MR ] }
{ double-float-rep [ FMR ] }
} case ;
M: ppc %unbox-float ( dst src -- ) float-offset LFD ;
@ -478,11 +477,29 @@ M: ppc %compare-branch (%compare) %branch ;
M: ppc %compare-imm-branch (%compare-imm) %branch ;
M: ppc %compare-float-branch (%compare-float) %branch ;
M: ppc %spill-integer ( src n -- ) spill-integer@ 1 swap STW ;
M: ppc %reload-integer ( dst n -- ) spill-integer@ 1 swap LWZ ;
: load-from-frame ( dst n rep -- )
{
{ int-rep [ [ 1 ] dip LWZ ] }
{ single-float-rep [ [ 1 ] dip LFS ] }
{ double-float-rep [ [ 1 ] dip LFD ] }
{ stack-params [ [ 0 1 ] dip LWZ [ 0 1 ] dip param@ STW ] }
} case ;
M: ppc %spill-float ( src n -- ) spill-float@ 1 swap STFD ;
M: ppc %reload-float ( dst n -- ) spill-float@ 1 swap LFD ;
: next-param@ ( n -- x ) param@ stack-frame get total-size>> + ;
: store-to-frame ( src n rep -- )
{
{ int-rep [ [ 1 ] dip STW ] }
{ single-float-rep [ [ 1 ] dip STFS ] }
{ double-float-rep [ [ 1 ] dip STFD ] }
{ stack-params [ [ [ 0 1 ] dip next-param@ LWZ 0 1 ] dip STW ] }
} case ;
M: ppc %spill ( src n rep -- )
[ spill@ ] dip store-to-frame ;
M: ppc %reload ( dst n rep -- )
[ spill@ ] dip load-from-frame ;
M: ppc %loop-entry ;
@ -490,26 +507,11 @@ M: int-regs return-reg drop 3 ;
M: int-regs param-regs drop { 3 4 5 6 7 8 9 10 } ;
M: float-regs return-reg drop 1 ;
M: int-regs %save-param-reg drop 1 rot local@ STW ;
M: int-regs %load-param-reg drop 1 rot local@ LWZ ;
M:: ppc %save-param-reg ( stack reg rep -- )
reg stack local@ rep store-to-frame ;
M: single-float-rep %save-param-reg drop 1 rot local@ STFS ;
M: single-float-rep %load-param-reg 1 rot local@ LFS ;
M: double-float-rep %save-param-reg drop 1 rot local@ STFD ;
M: double-float-rep %load-param-reg 1 rot local@ LFD ;
M: stack-params %load-param-reg ( stack reg rep -- )
drop [ 0 1 rot local@ LWZ 0 1 ] dip param@ STW ;
: next-param@ ( n -- x ) param@ stack-frame get total-size>> + ;
M: stack-params %save-param-reg ( stack reg rep -- )
#! Funky. Read the parameter from the caller's stack frame.
#! This word is used in callbacks
drop
[ 0 1 ] dip next-param@ LWZ
[ 0 1 ] dip local@ STW ;
M:: ppc %load-param-reg ( stack reg rep -- )
reg stack local@ rep load-from-frame ;
M: ppc %prepare-unbox ( -- )
! First parameter is top of stack