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 field -- )
47 [ vm-reg ] dip vm-field-offset [+] MOV ;
49 M: x86.64 %vm-field-ptr ( dst field -- )
50 [ vm-reg ] dip vm-field-offset [+] LEA ;
52 M: x86.64 %prologue ( n -- )
56 stack-reg swap 3 cells - SUB ;
58 M: x86.64 %prepare-jump
59 pic-tail-reg xt-tail-pic-offset [] LEA ;
61 : load-cards-offset ( dst -- )
62 0 MOV rc-absolute-cell rel-cards-offset ;
66 [+] card-mark <byte> MOV ;
68 : load-decks-offset ( dst -- )
69 0 MOV rc-absolute-cell rel-decks-offset ;
73 [+] card-mark <byte> MOV ;
75 M:: x86.64 %dispatch ( src temp -- )
76 ! Load jump table base.
77 temp HEX: ffffffff MOV
78 building get length :> start
79 0 rc-absolute-cell rel-here
83 building get length :> end
84 ! Fix up the displacement above
86 [ end start - + building get dup pop* push ]
90 M: stack-params copy-register*
93 { [ dup integer? ] [ R11 swap next-stack@ MOV R11 MOV ] }
94 { [ over integer? ] [ R11 swap MOV param@ R11 MOV ] }
97 M: x86.64 %save-param-reg [ param@ ] 2dip %copy ;
99 M: x86.64 %load-param-reg [ swap param@ ] dip %copy ;
101 : with-return-regs ( quot -- )
103 V{ RDX RAX } clone int-regs set
104 V{ XMM1 XMM0 } clone float-regs set
106 ] with-scope ; inline
108 M: x86.64 %pop-stack ( n -- )
109 param-reg-0 swap ds-reg reg-stack MOV ;
111 M: x86.64 %pop-context-stack ( -- )
112 temp-reg "ctx" %vm-field
113 param-reg-0 temp-reg "datastack" context-field-offset [+] MOV
114 param-reg-0 param-reg-0 [] MOV
115 temp-reg "datastack" context-field-offset [+] bootstrap-cell SUB ;
117 M:: x86.64 %unbox ( n rep func -- )
118 param-reg-1 %mov-vm-ptr
121 ! Store the return value on the C stack if this is an
122 ! alien-invoke, otherwise leave it the return register if
123 ! this is the end of alien-callback
124 n [ n rep reg-class-of return-reg rep %save-param-reg ] when ;
126 : %unbox-struct-field ( c-type i -- )
127 ! Alien must be in param-reg-0.
128 R11 swap cells [+] swap rep>> reg-class-of {
129 { int-regs [ int-regs get pop swap MOV ] }
130 { float-regs [ float-regs get pop swap MOVSD ] }
133 M: x86.64 %unbox-small-struct ( c-type -- )
134 ! Alien must be in param-reg-0.
135 param-reg-1 %mov-vm-ptr
136 "alien_offset" f %alien-invoke
137 ! Move alien_offset() return value to R11 so that we don't
141 flatten-value-type [ %unbox-struct-field ] each-index
144 M:: x86.64 %unbox-large-struct ( n c-type -- )
145 ! Source is in param-reg-0
146 ! Load destination address into param-reg-1
147 param-reg-1 n param@ LEA
148 ! Load structure size into param-reg-2
149 param-reg-2 c-type heap-size MOV
150 param-reg-3 %mov-vm-ptr
151 ! Copy the struct to the C stack
152 "to_value_struct" f %alien-invoke ;
154 : load-return-value ( rep -- )
155 [ [ 0 ] dip reg-class-of cdecl param-reg ]
156 [ reg-class-of return-reg ]
160 M:: x86.64 %box ( n rep func -- )
163 0 rep reg-class-of cdecl param-reg
166 rep load-return-value
169 cpu x86.64? os windows? and or
170 param-reg-1 param-reg-0 ? %mov-vm-ptr
171 func f %alien-invoke ;
173 : box-struct-field@ ( i -- operand ) 1 + cells param@ ;
175 : %box-struct-field ( c-type i -- )
176 box-struct-field@ swap c-type-rep reg-class-of {
177 { int-regs [ int-regs get pop MOV ] }
178 { float-regs [ float-regs get pop MOVSD ] }
181 M: x86.64 %box-small-struct ( c-type -- )
182 #! Box a <= 16-byte struct.
184 [ flatten-value-type [ %box-struct-field ] each-index ]
185 [ param-reg-2 swap heap-size MOV ] bi
186 param-reg-0 0 box-struct-field@ MOV
187 param-reg-1 1 box-struct-field@ MOV
188 param-reg-3 %mov-vm-ptr
189 "from_small_struct" f %alien-invoke
192 : struct-return@ ( n -- operand )
193 [ stack-frame get params>> ] unless* param@ ;
195 M: x86.64 %box-large-struct ( n c-type -- )
196 ! Struct size is parameter 2
197 param-reg-1 swap heap-size MOV
198 ! Compute destination address
199 param-reg-0 swap struct-return@ LEA
200 param-reg-2 %mov-vm-ptr
201 ! Copy the struct from the C stack
202 "from_value_struct" f %alien-invoke ;
204 M: x86.64 %prepare-box-struct ( -- )
205 ! Compute target address for value struct return
206 RAX f struct-return@ LEA
207 ! Store it as the first parameter
210 M: x86.64 %prepare-var-args RAX RAX XOR ;
212 M: x86.64 %alien-invoke
214 rc-absolute-cell rel-dlsym
217 M: x86.64 %prepare-alien-indirect ( -- )
218 param-reg-0 ds-reg [] MOV
220 param-reg-1 %mov-vm-ptr
221 "pinned_alien_offset" f %alien-invoke
224 M: x86.64 %alien-indirect ( -- )
227 M: x86.64 %begin-callback ( -- )
228 param-reg-0 %mov-vm-ptr
229 "begin_callback" f %alien-invoke ;
231 M: x86.64 %alien-callback ( quot -- )
232 param-reg-0 param-reg-1 %restore-context
233 param-reg-0 swap %load-reference
234 param-reg-0 quot-entry-point-offset [+] CALL
235 param-reg-0 param-reg-1 %save-context ;
237 M: x86.64 %end-callback ( -- )
238 param-reg-0 %mov-vm-ptr
239 "end_callback" f %alien-invoke ;
241 M: x86.64 %end-callback-value ( ctype -- )
243 nv-reg param-reg-0 MOV
245 param-reg-0 nv-reg MOV
246 ! Unbox former top of data stack to return registers
249 : float-function-param ( i src -- )
250 [ float-regs cdecl param-regs nth ] dip double-rep %copy ;
252 : float-function-return ( reg -- )
253 float-regs return-reg double-rep %copy ;
255 M:: x86.64 %unary-float-function ( dst src func -- )
256 0 src float-function-param
257 func "libm" load-library %alien-invoke
258 dst float-function-return ;
260 M:: x86.64 %binary-float-function ( dst src1 src2 func -- )
261 ! src1 might equal dst; otherwise it will be a spill slot
262 ! src2 is always a spill slot
263 0 src1 float-function-param
264 1 src2 float-function-param
265 func "libm" load-library %alien-invoke
266 dst float-function-return ;
268 M:: x86.64 %call-gc ( gc-root-count temp -- )
269 ! Pass pointer to start of GC roots as first parameter
270 param-reg-0 gc-root-base param@ LEA
271 ! Pass number of roots as second parameter
272 param-reg-1 gc-root-count MOV
273 ! Pass VM ptr as third parameter
274 param-reg-2 %mov-vm-ptr
276 "inline_gc" f %alien-invoke ;
278 M: x86.64 struct-return-pointer-type void* ;
280 ! The result of reading 4 bytes from memory is a fixnum on
282 enable-alien-4-intrinsics
287 { [ os unix? ] [ "cpu.x86.64.unix" require ] }
288 { [ os winnt? ] [ "cpu.x86.64.winnt" require ] }