1 ! Copyright (C) 2005, 2011 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors alien alien.c-types arrays classes.struct
4 combinators compiler.cfg.builder.alien.boxing
5 compiler.codegen.gc-maps compiler.codegen.labels
6 compiler.codegen.relocation compiler.constants cpu.architecture
7 cpu.x86 cpu.x86.assembler cpu.x86.assembler.operands
8 cpu.x86.features kernel locals make math namespaces sequences
9 specialized-arrays system vocabs ;
10 SPECIALIZED-ARRAY: uint
11 FROM: layouts => cell ;
14 : x86-float-regs ( -- seq )
15 "cpu.x86.sse" lookup-vocab
16 { XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 }
17 { ST0 ST1 ST2 ST3 ST4 ST5 ST6 }
20 M: x86.32 machine-registers
21 { int-regs { EAX ECX EDX EBP EBX } }
22 float-regs x86-float-regs 2array
25 M: x86.32 ds-reg ESI ;
26 M: x86.32 rs-reg EDI ;
27 M: x86.32 stack-reg ESP ;
28 M: x86.32 frame-reg EBP ;
30 M: x86.32 immediate-comparand? ( obj -- ? ) drop t ;
32 M:: x86.32 %load-vector ( dst val rep -- )
33 dst 0 [] rep copy-memory* val rc-absolute rel-binary-literal ;
35 M: x86.32 %mov-vm-ptr ( reg -- )
36 0 MOV 0 rc-absolute-cell rel-vm ;
38 M: x86.32 %vm-field ( dst field -- )
39 [ 0 [] MOV ] dip rc-absolute-cell rel-vm ;
41 M: x86.32 %set-vm-field ( dst field -- )
42 [ 0 [] swap MOV ] dip rc-absolute-cell rel-vm ;
44 M: x86.32 %vm-field-ptr ( dst field -- )
45 [ 0 MOV ] dip rc-absolute-cell rel-vm ;
48 drop 0xffffffff [+] card-mark <byte> MOV
50 rc-absolute-cell rel-cards-offset
54 drop 0xffffffff [+] card-mark <byte> MOV
56 rc-absolute-cell rel-decks-offset
59 M: x86.32 pic-tail-reg EDX ;
61 M: x86.32 reserved-stack-space 0 ;
63 M: x86.32 vm-stack-space 16 ;
65 : save-vm-ptr ( n -- )
66 stack@ 0 MOV 0 rc-absolute-cell rel-vm ;
68 M: x86.32 return-struct-in-registers? ( c-type -- ? )
70 [ return-in-registers?>> ]
71 [ heap-size { 1 2 4 8 } member? ] bi
75 ! On x86, parameters are usually never passed in registers,
76 ! except with Microsoft's "thiscall" and "fastcall" abis
79 { thiscall [ { { int-regs { ECX } } { float-regs { } } } ] }
80 { fastcall [ { { int-regs { ECX EDX } } { float-regs { } } } ] }
81 [ drop { { int-regs { } } { float-regs { } } } ]
84 ! Need a fake return-reg for floats
87 { int-regs { EAX EDX } }
88 { float-regs { ST0 } }
91 M: x86.32 %prepare-jump
92 pic-tail-reg 0 MOV xt-tail-pic-offset rc-absolute-cell rel-here ;
94 M: x86.32 %load-stack-param ( dst rep n -- )
95 next-stack@ swap pick register? [ %copy ] [
97 { int-rep [ [ EAX ] dip MOV ?spill-slot EAX MOV ] }
98 { float-rep [ FLDS ?spill-slot FSTPS ] }
99 { double-rep [ FLDL ?spill-slot FSTPL ] }
103 M: x86.32 %store-stack-param ( src rep n -- )
104 stack@ swap pick register? [ swapd %copy ] [
106 { int-rep [ [ [ EAX ] dip ?spill-slot MOV ] [ EAX MOV ] bi* ] }
107 { float-rep [ [ ?spill-slot FLDS ] [ FSTPS ] bi* ] }
108 { double-rep [ [ ?spill-slot FLDL ] [ FSTPL ] bi* ] }
112 :: load-float-return ( dst x87-insn rep -- )
115 ESP [] x87-insn execute
119 dst ?spill-slot x87-insn execute
122 M: x86.32 %load-reg-param ( vreg rep reg -- )
124 { int-rep [ int-rep %copy ] }
125 { float-rep [ drop \ FSTPS float-rep load-float-return ] }
126 { double-rep [ drop \ FSTPL double-rep load-float-return ] }
129 :: store-float-return ( src x87-insn rep -- )
133 ESP [] x87-insn execute
136 src ?spill-slot x87-insn execute
139 M: x86.32 %store-reg-param ( vreg rep reg -- )
141 { int-rep [ swap int-rep %copy ] }
142 { float-rep [ drop \ FLDS float-rep store-float-return ] }
143 { double-rep [ drop \ FLDL double-rep store-float-return ] }
146 M: x86.32 %discard-reg-param ( rep reg -- )
149 { float-rep [ ST0 FSTP ] }
150 { double-rep [ ST0 FSTP ] }
153 :: call-unbox-func ( src func -- )
154 EAX src tagged-rep %copy
159 M:: x86.32 %unbox ( dst src func rep -- )
160 src func call-unbox-func
161 dst rep %load-return ;
163 M:: x86.32 %unbox-long-long ( dst1 dst2 src func -- )
164 src int-rep 0 %store-stack-param
167 dst1 EAX int-rep %copy
168 dst2 EDX int-rep %copy ;
170 M:: x86.32 %box ( dst src func rep gc-map -- )
171 src rep 0 %store-stack-param
172 rep rep-size save-vm-ptr
173 func f gc-map %c-invoke
174 dst EAX tagged-rep %copy ;
176 M:: x86.32 %box-long-long ( dst src1 src2 func gc-map -- )
177 src1 int-rep 0 %store-stack-param
178 src2 int-rep 4 %store-stack-param
180 func f gc-map %c-invoke
181 dst EAX tagged-rep %copy ;
184 [ 0 CALL rc-relative rel-dlsym ] dip gc-map-here ;
186 M: x86.32 %begin-callback ( -- )
189 "begin_callback" f f %c-invoke ;
191 M: x86.32 %end-callback ( -- )
193 "end_callback" f f %c-invoke ;
195 : funny-large-struct-return? ( return abi -- ? )
196 #! MINGW ABI incompatibility disaster
197 [ large-struct? ] [ mingw eq? os windows? not or ] bi* and ;
199 M: x86.32 %prepare-var-args ( -- ) ;
201 M:: x86.32 stack-cleanup ( stack-size return abi -- n )
202 #! a) Functions which are stdcall/fastcall/thiscall have to
203 #! clean up the caller's stack frame.
204 #! b) Functions returning large structs on MINGW have to
207 { [ abi callee-cleanup? ] [ stack-size ] }
208 { [ return abi funny-large-struct-return? ] [ 4 ] }
212 M: x86.32 %cleanup ( n -- )
213 [ ESP swap SUB ] unless-zero ;
216 0 EAX MOVABS rc-absolute rel-safepoint ;
218 M: x86.32 dummy-stack-params? f ;
220 M: x86.32 dummy-int-params? f ;
222 M: x86.32 dummy-fp-params? f ;
224 M: x86.32 long-long-on-stack? t ;
226 M: x86.32 float-on-stack? t ;
228 M: x86.32 flatten-struct-type
229 call-next-method [ first t f 3array ] map ;
231 M: x86.32 struct-return-on-stack? os linux? not ;
233 M: x86.32 (cpuid) ( eax ecx regs -- )
234 void { uint uint void* } cdecl [
235 ! Save ds-reg, rs-reg