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 layouts locals make math namespaces
9 sequences specialized-arrays system vocabs ;
10 SPECIALIZED-ARRAY: uint
13 : x86-float-regs ( -- seq )
14 "cpu.x86.sse" lookup-vocab
15 { XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 }
16 { ST0 ST1 ST2 ST3 ST4 ST5 ST6 }
19 M: x86.32 machine-registers
20 { int-regs { EAX ECX EDX EBP EBX } }
21 float-regs x86-float-regs 2array
24 M: x86.32 ds-reg ESI ;
25 M: x86.32 rs-reg EDI ;
26 M: x86.32 stack-reg ESP ;
27 M: x86.32 frame-reg EBP ;
29 M: x86.32 immediate-comparand? ( obj -- ? ) drop t ;
31 M:: x86.32 %load-vector ( dst val rep -- )
32 dst 0 [] rep copy-memory* val rc-absolute rel-binary-literal ;
34 M: x86.32 %vm-field ( dst field -- )
35 [ 0 [] MOV ] dip rc-absolute-cell rel-vm ;
37 M: x86.32 %set-vm-field ( dst field -- )
38 [ 0 [] swap MOV ] dip rc-absolute-cell rel-vm ;
40 M: x86.32 %vm-field-ptr ( dst field -- )
41 [ 0 MOV ] dip rc-absolute-cell rel-vm ;
44 drop 0xffffffff [+] card-mark <byte> MOV
46 rc-absolute-cell rel-cards-offset
50 drop 0xffffffff [+] card-mark <byte> MOV
52 rc-absolute-cell rel-decks-offset
55 M: x86.32 pic-tail-reg EDX ;
57 M: x86.32 reserved-stack-space 0 ;
59 M: x86.32 vm-stack-space 16 ;
61 : save-vm-ptr ( n -- )
62 stack@ 0 MOV 0 rc-absolute-cell rel-vm ;
64 M: x86.32 return-struct-in-registers? ( c-type -- ? )
66 [ return-in-registers?>> ]
67 [ heap-size { 1 2 4 8 } member? ] bi
71 ! On x86, parameters are usually never passed in registers,
72 ! except with Microsoft's "thiscall" and "fastcall" abis
75 { thiscall [ { { int-regs { ECX } } { float-regs { } } } ] }
76 { fastcall [ { { int-regs { ECX EDX } } { float-regs { } } } ] }
77 [ drop { { int-regs { } } { float-regs { } } } ]
80 ! Need a fake return-reg for floats
83 { int-regs { EAX EDX } }
84 { float-regs { ST0 } }
87 M: x86.32 %prepare-jump
88 pic-tail-reg 0 MOV xt-tail-pic-offset rc-absolute-cell rel-here ;
90 M: x86.32 %load-stack-param ( dst rep n -- )
91 next-stack@ swap pick register? [ %copy ] [
93 { int-rep [ [ EAX ] dip MOV ?spill-slot EAX MOV ] }
94 { float-rep [ FLDS ?spill-slot FSTPS ] }
95 { double-rep [ FLDL ?spill-slot FSTPL ] }
99 M: x86.32 %store-stack-param ( src rep n -- )
100 stack@ swap pick register? [ swapd %copy ] [
102 { int-rep [ [ [ EAX ] dip ?spill-slot MOV ] [ EAX MOV ] bi* ] }
103 { float-rep [ [ ?spill-slot FLDS ] [ FSTPS ] bi* ] }
104 { double-rep [ [ ?spill-slot FLDL ] [ FSTPL ] bi* ] }
108 :: load-float-return ( dst x87-insn rep -- )
111 ESP [] x87-insn execute
115 dst ?spill-slot x87-insn execute
118 M: x86.32 %load-reg-param ( vreg rep reg -- )
120 { int-rep [ int-rep %copy ] }
121 { float-rep [ drop \ FSTPS float-rep load-float-return ] }
122 { double-rep [ drop \ FSTPL double-rep load-float-return ] }
125 :: store-float-return ( src x87-insn rep -- )
129 ESP [] x87-insn execute
132 src ?spill-slot x87-insn execute
135 M: x86.32 %store-reg-param ( vreg rep reg -- )
137 { int-rep [ swap int-rep %copy ] }
138 { float-rep [ drop \ FLDS float-rep store-float-return ] }
139 { double-rep [ drop \ FLDL double-rep store-float-return ] }
142 M: x86.32 %discard-reg-param ( rep reg -- )
145 { float-rep [ ST0 FSTP ] }
146 { double-rep [ ST0 FSTP ] }
149 :: call-unbox-func ( src func -- )
150 EAX src tagged-rep %copy
155 M:: x86.32 %unbox ( dst src func rep -- )
156 src func call-unbox-func
157 dst rep %load-return ;
159 M:: x86.32 %unbox-long-long ( dst1 dst2 src func -- )
160 src int-rep 0 %store-stack-param
163 dst1 EAX int-rep %copy
164 dst2 EDX int-rep %copy ;
166 M:: x86.32 %box ( dst src func rep gc-map -- )
167 src rep 0 %store-stack-param
168 rep rep-size save-vm-ptr
169 func f gc-map %c-invoke
170 dst EAX tagged-rep %copy ;
172 M:: x86.32 %box-long-long ( dst src1 src2 func gc-map -- )
173 src1 int-rep 0 %store-stack-param
174 src2 int-rep 4 %store-stack-param
176 func f gc-map %c-invoke
177 dst EAX tagged-rep %copy ;
180 [ 0 CALL rc-relative rel-dlsym ] dip gc-map-here ;
182 M: x86.32 %begin-callback ( -- )
185 "begin_callback" f f %c-invoke ;
187 M: x86.32 %end-callback ( -- )
189 "end_callback" f f %c-invoke ;
191 : funny-large-struct-return? ( return abi -- ? )
192 ! MINGW ABI incompatibility disaster
193 [ large-struct? ] [ mingw eq? os windows? not or ] bi* and ;
195 M: x86.32 %prepare-var-args ( -- ) ;
197 M:: x86.32 stack-cleanup ( stack-size return abi -- n )
198 ! a) Functions which are stdcall/fastcall/thiscall have to
199 ! clean up the caller's stack frame.
200 ! b) Functions returning large structs on MINGW have to
203 { [ abi callee-cleanup? ] [ stack-size ] }
204 { [ return abi funny-large-struct-return? ] [ 4 ] }
208 M: x86.32 %cleanup ( n -- )
209 [ ESP swap SUB ] unless-zero ;
212 0 EAX MOVABS rc-absolute rel-safepoint ;
214 M: x86.32 dummy-stack-params? f ;
216 M: x86.32 dummy-int-params? f ;
218 M: x86.32 dummy-fp-params? f ;
220 M: x86.32 long-long-on-stack? t ;
222 M: x86.32 float-on-stack? t ;
224 M: x86.32 flatten-struct-type
225 call-next-method [ first t f 3array ] map ;
227 M: x86.32 struct-return-on-stack? os linux? not ;
229 M: x86.32 (cpuid) ( eax ecx regs -- )
230 void { uint uint void* } cdecl [
231 ! Save ds-reg, rs-reg