73 lines
1.8 KiB
Factor
73 lines
1.8 KiB
Factor
! Copyright (C) 2005, 2006 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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IN: compiler
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USING: alien arrays assembler kernel kernel-internals math
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sequences ;
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: stack@ RSP swap [+] ;
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M: int-regs %freg>stack drop >r stack@ r> MOV ;
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M: int-regs %stack>freg drop swap stack@ MOV ;
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: MOVSS/D float-regs-size 4 = [ MOVSS ] [ MOVSD ] if ;
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M: float-regs %freg>stack >r >r stack@ r> r> MOVSS/D ;
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M: float-regs %stack>freg >r swap stack@ r> MOVSS/D ;
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M: stack-params %stack>freg
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drop >r R11 swap stack@ MOV r> stack@ R11 MOV ;
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M: stack-params %freg>stack
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>r stack-increment + cell + swap r> %stack>freg ;
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: %unbox-struct ( n reg-class size -- )
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nip
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! Load destination address
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RDI RSP MOV
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RDI rot ADD
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! Load struct size
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RSI swap MOV
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! Copy the struct to the stack
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"unbox_value_struct" f compile-c-call ;
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: %unbox ( n reg-class func -- )
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! Call the unboxer
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f compile-c-call
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! Store the return value on the C stack
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[ return-reg ] keep %freg>stack ;
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: load-return-value ( reg-class -- )
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dup fastcall-regs first swap return-reg
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2dup eq? [ 2drop ] [ MOV ] if ;
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: %box ( n reg-class func -- )
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rot [
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swap [ fastcall-regs first ] keep %stack>freg
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] [
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load-return-value
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] if*
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f compile-c-call ;
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: reset-sse RAX RAX XOR ;
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: %alien-invoke ( symbol dll -- )
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reset-sse compile-c-call ;
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: %alien-callback ( quot -- )
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RDI swap load-literal "run_callback" f compile-c-call ;
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: save-return 0 swap [ return-reg ] keep %freg>stack ;
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: load-return 0 swap [ return-reg ] keep %stack>freg ;
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: %callback-value ( reg-class func -- )
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! Call the unboxer
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f compile-c-call
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! Save return register
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dup save-return
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! Restore data/callstacks
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"unnest_stacks" f compile-c-call
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! Restore return register
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load-return ;
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