1 ! Copyright (C) 2005, 2009 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays kernel math namespaces make sequences system
4 layouts alien alien.c-types alien.accessors slots
5 splitting assocs combinators locals compiler.constants
6 compiler.codegen compiler.codegen.fixup compiler.cfg.instructions
7 compiler.cfg.builder compiler.cfg.intrinsics compiler.cfg.stack-frame
8 cpu.x86.assembler cpu.x86.assembler.operands cpu.x86 cpu.architecture ;
11 M: x86.64 machine-registers
13 { int-regs { RAX RCX RDX RBX RBP RSI RDI R8 R9 R10 R11 R12 R13 } }
15 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7
16 XMM8 XMM9 XMM10 XMM11 XMM12 XMM13 XMM14 XMM15
20 M: x86.64 ds-reg R14 ;
21 M: x86.64 rs-reg R15 ;
22 M: x86.64 stack-reg RSP ;
24 M:: x86.64 %dispatch ( src temp -- )
25 building get length :> start
26 ! Load jump table base.
27 temp HEX: ffffffff MOV
28 0 rc-absolute-cell rel-here
32 building get length :> end
33 ! Fix up the displacement above
35 [ end start - 2 - + building get dup pop* push ]
39 M: x86.64 param-reg-1 int-regs param-regs first ;
40 M: x86.64 param-reg-2 int-regs param-regs second ;
41 : param-reg-3 ( -- reg ) int-regs param-regs third ; inline
43 M: x86.64 pic-tail-reg RBX ;
45 M: int-regs return-reg drop RAX ;
46 M: float-regs return-reg drop XMM0 ;
48 M: x86.64 %prologue ( n -- )
49 temp-reg 0 MOV rc-absolute-cell rel-this
52 stack-reg swap 3 cells - SUB ;
54 M: stack-params copy-register*
57 { [ dup integer? ] [ R11 swap next-stack@ MOV R11 MOV ] }
58 { [ over integer? ] [ R11 swap MOV param@ R11 MOV ] }
61 M: x86 %save-param-reg [ param@ ] 2dip copy-register ;
63 M: x86 %load-param-reg [ swap param@ ] dip copy-register ;
65 : with-return-regs ( quot -- )
67 V{ RDX RAX } clone int-regs set
68 V{ XMM1 XMM0 } clone float-regs set
72 M: x86.64 %prepare-unbox ( -- )
73 ! First parameter is top of stack
74 param-reg-1 R14 [] MOV
77 : %vm-invoke-2nd-arg ( function -- )
78 param-reg-2 0 MOV rc-absolute-cell rt-vm rel-fixup
82 M:: x86.64 %unbox ( n rep func -- )
84 func %vm-invoke-2nd-arg
85 ! Store the return value on the C stack if this is an
86 ! alien-invoke, otherwise leave it the return register if
87 ! this is the end of alien-callback
88 n [ n rep reg-class-of return-reg rep %save-param-reg ] when ;
90 M: x86.64 %unbox-long-long ( n func -- )
91 [ int-rep ] dip %unbox ;
93 : %unbox-struct-field ( c-type i -- )
94 ! Alien must be in param-reg-1.
95 R11 swap cells [+] swap rep>> reg-class-of {
96 { int-regs [ int-regs get pop swap MOV ] }
97 { float-regs [ float-regs get pop swap MOVSD ] }
101 M: x86.64 %unbox-small-struct ( c-type -- )
102 ! Alien must be in param-reg-1.
103 "alien_offset" %vm-invoke-2nd-arg
104 ! Move alien_offset() return value to R11 so that we don't
108 flatten-value-type [ %unbox-struct-field ] each-index
111 M:: x86.64 %unbox-large-struct ( n c-type -- )
112 ! Source is in param-reg-1
113 ! Load destination address into param-reg-2
114 param-reg-2 n param@ LEA
115 ! Load structure size into param-reg-3
116 param-reg-3 c-type heap-size MOV
117 ! Copy the struct to the C stack
118 "to_value_struct" f %alien-invoke ;
120 : load-return-value ( rep -- )
121 [ [ 0 ] dip reg-class-of param-reg ]
122 [ reg-class-of return-reg ]
126 M:: x86.64 %box ( n rep func -- )
129 0 rep reg-class-of param-reg
132 rep load-return-value
134 func %vm-invoke-2nd-arg ;
136 M: x86.64 %box-long-long ( n func -- )
137 [ int-rep ] dip %box ;
139 : box-struct-field@ ( i -- operand ) 1 + cells param@ ;
141 : %box-struct-field ( c-type i -- )
142 box-struct-field@ swap c-type-rep reg-class-of {
143 { int-regs [ int-regs get pop MOV ] }
144 { float-regs [ float-regs get pop MOVSD ] }
147 M: x86.64 %box-small-struct ( c-type -- )
148 #! Box a <= 16-byte struct.
150 [ flatten-value-type [ %box-struct-field ] each-index ]
151 [ param-reg-3 swap heap-size MOV ] bi
152 param-reg-1 0 box-struct-field@ MOV
153 param-reg-2 1 box-struct-field@ MOV
154 "box_small_struct" f %alien-invoke
157 : struct-return@ ( n -- operand )
158 [ stack-frame get params>> ] unless* param@ ;
160 M: x86.64 %box-large-struct ( n c-type -- )
161 ! Struct size is parameter 2
162 param-reg-2 swap heap-size MOV
163 ! Compute destination address
164 param-reg-1 swap struct-return@ LEA
165 ! Copy the struct from the C stack
166 "box_value_struct" f %alien-invoke ;
168 M: x86.64 %prepare-box-struct ( -- )
169 ! Compute target address for value struct return
170 RAX f struct-return@ LEA
171 ! Store it as the first parameter
174 M: x86.64 %prepare-var-args RAX RAX XOR ;
176 M: x86.64 %alien-invoke
178 rc-absolute-cell rel-dlsym
181 M: x86.64 %vm-invoke-1st-arg ( function -- )
182 param-reg-1 0 MOV rc-absolute-cell rt-vm rel-fixup
186 M: x86.64 %vm-invoke-3rd-arg ( function -- )
187 param-reg-3 0 MOV rc-absolute-cell rt-vm rel-fixup
190 M: x86.64 %prepare-alien-indirect ( -- )
191 "unbox_alien" f %alien-invoke
194 M: x86.64 %alien-indirect ( -- )
197 M: x86.64 %alien-callback ( quot -- )
198 param-reg-1 swap %load-reference
199 "c_to_factor" f %alien-invoke ;
201 M: x86.64 %callback-value ( ctype -- )
202 ! Save top of data stack
204 ! Save top of data stack
207 ! Restore data/call/retain stacks
208 "unnest_stacks" f %alien-invoke
209 ! Put former top of data stack in param-reg-1
212 ! Unbox former top of data stack to return registers
215 : float-function-param ( i spill-slot -- )
216 [ float-regs param-regs nth ] [ n>> spill@ ] bi* MOVSD ;
218 : float-function-return ( reg -- )
219 float-regs return-reg double-rep copy-register ;
221 M:: x86.64 %unary-float-function ( dst src func -- )
222 0 src float-function-param
224 dst float-function-return ;
226 M:: x86.64 %binary-float-function ( dst src1 src2 func -- )
227 0 src1 float-function-param
228 1 src2 float-function-param
230 dst float-function-return ;
232 ! The result of reading 4 bytes from memory is a fixnum on
234 enable-alien-4-intrinsics
236 ! Enable fast calling of libc math functions
237 enable-float-functions
242 { [ os unix? ] [ "cpu.x86.64.unix" require ] }
243 { [ os winnt? ] [ "cpu.x86.64.winnt" require ] }
246 "cpu.x86.features" require