1 ! Copyright (C) 2005, 2010 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays kernel math namespaces make sequences
4 system layouts alien alien.c-types alien.accessors alien.libraries
5 slots splitting assocs combinators locals compiler.constants
6 compiler.codegen compiler.codegen.fixup
7 compiler.cfg.instructions compiler.cfg.builder
8 compiler.cfg.intrinsics compiler.cfg.stack-frame
9 cpu.x86.assembler cpu.x86.assembler.operands cpu.x86
11 FROM: layouts => cell cells ;
14 : param-reg-0 ( -- reg ) 0 int-regs cdecl param-reg ; inline
15 : param-reg-1 ( -- reg ) 1 int-regs cdecl param-reg ; inline
16 : param-reg-2 ( -- reg ) 2 int-regs cdecl param-reg ; inline
17 : param-reg-3 ( -- reg ) 3 int-regs cdecl param-reg ; inline
19 M: x86.64 pic-tail-reg RBX ;
21 M: int-regs return-reg drop RAX ;
22 M: float-regs return-reg drop XMM0 ;
24 M: x86.64 ds-reg R14 ;
25 M: x86.64 rs-reg R15 ;
26 M: x86.64 stack-reg RSP ;
27 M: x86.64 frame-reg RBP ;
29 M: x86.64 extra-stack-space drop 0 ;
31 M: x86.64 machine-registers
33 { int-regs { RAX RCX RDX RBX RBP RSI RDI R8 R9 R10 R11 R12 } }
35 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7
36 XMM8 XMM9 XMM10 XMM11 XMM12 XMM13 XMM14 XMM15
40 : vm-reg ( -- reg ) R13 ; inline
41 : nv-reg ( -- reg ) RBX ; inline
43 M: x86.64 %mov-vm-ptr ( reg -- )
46 M: x86.64 %vm-field ( dst offset -- )
47 [ vm-reg ] dip [+] MOV ;
49 M: x86.64 %set-vm-field ( src offset -- )
50 [ vm-reg ] dip [+] swap MOV ;
52 M: x86.64 %vm-field-ptr ( dst offset -- )
53 [ vm-reg ] dip [+] LEA ;
55 M: x86.64 %prologue ( n -- )
56 temp-reg -7 [RIP+] LEA
59 stack-reg swap 3 cells - SUB ;
61 M: x86.64 %prepare-jump
62 pic-tail-reg xt-tail-pic-offset [RIP+] LEA ;
64 : load-cards-offset ( dst -- )
65 0 MOV rc-absolute-cell rel-cards-offset ;
69 [+] card-mark <byte> MOV ;
71 : load-decks-offset ( dst -- )
72 0 MOV rc-absolute-cell rel-decks-offset ;
76 [+] card-mark <byte> MOV ;
78 M:: x86.64 %dispatch ( src temp -- )
79 ! Load jump table base.
80 temp HEX: ffffffff MOV
81 building get length :> start
82 0 rc-absolute-cell rel-here
86 building get length :> end
87 ! Fix up the displacement above
89 [ end start - + building get dup pop* push ]
93 M: stack-params copy-register*
96 { [ dup integer? ] [ R11 swap next-stack@ MOV R11 MOV ] }
97 { [ over integer? ] [ R11 swap MOV param@ R11 MOV ] }
100 M: x86.64 %save-param-reg [ param@ ] 2dip %copy ;
102 M: x86.64 %load-param-reg [ swap param@ ] dip %copy ;
104 : with-return-regs ( quot -- )
106 V{ RDX RAX } clone int-regs set
107 V{ XMM1 XMM0 } clone float-regs set
109 ] with-scope ; inline
111 M: x86.64 %pop-stack ( n -- )
112 param-reg-0 swap ds-reg reg-stack MOV ;
114 M: x86.64 %pop-context-stack ( -- )
116 param-reg-0 temp-reg "datastack" context-field-offset [+] MOV
117 param-reg-0 param-reg-0 [] MOV
118 temp-reg "datastack" context-field-offset [+] bootstrap-cell SUB ;
120 M:: x86.64 %unbox ( n rep func -- )
121 param-reg-1 %mov-vm-ptr
124 ! Store the return value on the C stack if this is an
125 ! alien-invoke, otherwise leave it the return register if
126 ! this is the end of alien-callback
127 n [ n rep reg-class-of return-reg rep %save-param-reg ] when ;
129 : %unbox-struct-field ( c-type i -- )
130 ! Alien must be in param-reg-0.
131 R11 swap cells [+] swap rep>> reg-class-of {
132 { int-regs [ int-regs get pop swap MOV ] }
133 { float-regs [ float-regs get pop swap MOVSD ] }
136 M: x86.64 %unbox-small-struct ( c-type -- )
137 ! Alien must be in param-reg-0.
138 param-reg-1 %mov-vm-ptr
139 "alien_offset" f %alien-invoke
140 ! Move alien_offset() return value to R11 so that we don't
144 flatten-value-type [ %unbox-struct-field ] each-index
147 M:: x86.64 %unbox-large-struct ( n c-type -- )
148 ! Source is in param-reg-0
149 ! Load destination address into param-reg-1
150 param-reg-1 n param@ LEA
151 ! Load structure size into param-reg-2
152 param-reg-2 c-type heap-size MOV
153 param-reg-3 %mov-vm-ptr
154 ! Copy the struct to the C stack
155 "to_value_struct" f %alien-invoke ;
157 : load-return-value ( rep -- )
158 [ [ 0 ] dip reg-class-of cdecl param-reg ]
159 [ reg-class-of return-reg ]
163 M:: x86.64 %box ( n rep func -- )
166 0 rep reg-class-of cdecl param-reg
169 rep load-return-value
172 cpu x86.64? os windows? and or
173 param-reg-1 param-reg-0 ? %mov-vm-ptr
174 func f %alien-invoke ;
176 : box-struct-field@ ( i -- operand ) 1 + cells param@ ;
178 : %box-struct-field ( c-type i -- )
179 box-struct-field@ swap c-type-rep reg-class-of {
180 { int-regs [ int-regs get pop MOV ] }
181 { float-regs [ float-regs get pop MOVSD ] }
184 M: x86.64 %box-small-struct ( c-type -- )
185 #! Box a <= 16-byte struct.
187 [ flatten-value-type [ %box-struct-field ] each-index ]
188 [ param-reg-2 swap heap-size MOV ] bi
189 param-reg-0 0 box-struct-field@ MOV
190 param-reg-1 1 box-struct-field@ MOV
191 param-reg-3 %mov-vm-ptr
192 "from_small_struct" f %alien-invoke
195 : struct-return@ ( n -- operand )
196 [ stack-frame get params>> ] unless* param@ ;
198 M: x86.64 %box-large-struct ( n c-type -- )
199 ! Struct size is parameter 2
200 param-reg-1 swap heap-size MOV
201 ! Compute destination address
202 param-reg-0 swap struct-return@ LEA
203 param-reg-2 %mov-vm-ptr
204 ! Copy the struct from the C stack
205 "from_value_struct" f %alien-invoke ;
207 M: x86.64 %prepare-box-struct ( -- )
208 ! Compute target address for value struct return
209 RAX f struct-return@ LEA
210 ! Store it as the first parameter
213 M: x86.64 %prepare-var-args RAX RAX XOR ;
215 M: x86.64 %alien-invoke
217 rc-absolute-cell rel-dlsym
220 M: x86.64 %prepare-alien-indirect ( -- )
221 param-reg-0 ds-reg [] MOV
223 param-reg-1 %mov-vm-ptr
224 "pinned_alien_offset" f %alien-invoke
227 M: x86.64 %alien-indirect ( -- )
230 M: x86.64 %begin-callback ( -- )
231 param-reg-0 %mov-vm-ptr
233 "begin_callback" f %alien-invoke ;
235 M: x86.64 %alien-callback ( quot -- )
236 param-reg-0 param-reg-1 %restore-context
237 param-reg-0 swap %load-reference
238 param-reg-0 quot-entry-point-offset [+] CALL
239 param-reg-0 param-reg-1 %save-context ;
241 M: x86.64 %end-callback ( -- )
242 param-reg-0 %mov-vm-ptr
243 "end_callback" f %alien-invoke ;
245 M: x86.64 %end-callback-value ( ctype -- )
247 nv-reg param-reg-0 MOV
249 param-reg-0 nv-reg MOV
250 ! Unbox former top of data stack to return registers
253 : float-function-param ( i src -- )
254 [ float-regs cdecl param-regs nth ] dip double-rep %copy ;
256 : float-function-return ( reg -- )
257 float-regs return-reg double-rep %copy ;
259 M:: x86.64 %unary-float-function ( dst src func -- )
260 0 src float-function-param
261 func "libm" load-library %alien-invoke
262 dst float-function-return ;
264 M:: x86.64 %binary-float-function ( dst src1 src2 func -- )
265 ! src1 might equal dst; otherwise it will be a spill slot
266 ! src2 is always a spill slot
267 0 src1 float-function-param
268 1 src2 float-function-param
269 func "libm" load-library %alien-invoke
270 dst float-function-return ;
272 M:: x86.64 %call-gc ( gc-root-count temp -- )
273 ! Pass pointer to start of GC roots as first parameter
274 param-reg-0 gc-root-base param@ LEA
275 ! Pass number of roots as second parameter
276 param-reg-1 gc-root-count MOV
277 ! Pass VM ptr as third parameter
278 param-reg-2 %mov-vm-ptr
280 "inline_gc" f %alien-invoke ;
282 M: x86.64 struct-return-pointer-type void* ;
284 ! The result of reading 4 bytes from memory is a fixnum on
286 enable-alien-4-intrinsics
291 { [ os unix? ] [ "cpu.x86.64.unix" require ] }
292 { [ os winnt? ] [ "cpu.x86.64.winnt" require ] }