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Add XBox 360 port.

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Thanks to Eddie Edwards.
This commit is contained in:
Mike Pall
2013-01-21 16:43:49 +01:00
parent 2c293a96de
commit 89e4650bae
9 changed files with 233 additions and 25 deletions
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48
src/vm_ppc.dasc
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@@ -21,6 +21,7 @@
|// Note: a full PPC64 _LP64 port is not planned.
|// GPR64 64 bit registers (but possibly 32 bit pointers, e.g. PS3).
|// Affects reg saves, stack layout, carry/overflow/dot flags etc.
|// FRAME32 Use 32 bit frame layout, even with GPR64 (XBox 360).
|// TOC Need table of contents (64 bit or 32 bit variant, e.g. PS3).
|// Function pointers are really a struct: code, TOC, env (optional).
|// TOCENV Function pointers have an environment pointer, too (not on PS3).
@@ -128,6 +129,37 @@
|
|// Stack layout while in interpreter. Must match with lj_frame.h.
|.if GPR64
|.if FRAME32
|
|// 456(sp) // \ 32/64 bit C frame info
|.define TONUM_LO, 452(sp) // |
|.define TONUM_HI, 448(sp) // |
|.define TMPD_LO, 444(sp) // |
|.define TMPD_HI, 440(sp) // |
|.define SAVE_CR, 432(sp) // | 64 bit CR save.
|.define SAVE_ERRF, 424(sp) // > Parameter save area.
|.define SAVE_NRES, 420(sp) // |
|.define SAVE_L, 416(sp) // |
|.define SAVE_PC, 412(sp) // |
|.define SAVE_MULTRES, 408(sp) // |
|.define SAVE_CFRAME, 400(sp) // / 64 bit C frame chain.
|// 392(sp) // Reserved.
|.define CFRAME_SPACE, 384 // Delta for sp.
|// Back chain for sp: 384(sp) <-- sp entering interpreter
|.define SAVE_LR, 376(sp) // 32 bit LR stored in hi-part.
|.define SAVE_GPR_, 232 // .. 232+18*8: 64 bit GPR saves.
|.define SAVE_FPR_, 88 // .. 88+18*8: 64 bit FPR saves.
|// 80(sp) // Needed for 16 byte stack frame alignment.
|// 16(sp) // Callee parameter save area (ABI mandated).
|// 8(sp) // Reserved
|// Back chain for sp: 0(sp) <-- sp while in interpreter
|// 32 bit sp stored in hi-part of 0(sp).
|
|.define TMPD_BLO, 447(sp)
|.define TMPD, TMPD_HI
|.define TONUM_D, TONUM_HI
|
|.else
|
|// 508(sp) // \ 32 bit C frame info.
|.define SAVE_ERRF, 472(sp) // |
@@ -155,6 +187,7 @@
|.define TMPD, TMPD_HI
|.define TONUM_D, TONUM_HI
|
|.endif
|.else
|
|.define SAVE_LR, 276(sp)
@@ -201,7 +234,7 @@
|.endmacro
|
|.macro saveregs
|.if GPR64
|.if GPR64 and not FRAME32
| stdu sp, -CFRAME_SPACE(sp)
|.else
| stwu sp, -CFRAME_SPACE(sp)
@@ -209,7 +242,7 @@
| save_ 14; save_ 15; save_ 16
| mflr r0
| save_ 17; save_ 18; save_ 19; save_ 20; save_ 21; save_ 22
|.if GPR64
|.if GPR64 and not FRAME32
| std r0, SAVE_LR
|.else
| stw r0, SAVE_LR
@@ -226,10 +259,15 @@
|.endmacro
|
|.macro restoreregs
|.if GPR64
| ld r0, SAVE_LR; ld r12, SAVE_CR
|.if GPR64 and not FRAME32
| ld r0, SAVE_LR
|.else
| lwz r0, SAVE_LR; lwz r12, SAVE_CR
| lwz r0, SAVE_LR
|.endif
|.if GPR64
| ld r12, SAVE_CR
|.else
| lwz r12, SAVE_CR
|.endif
| rest_ 14; rest_ 15; rest_ 16; rest_ 17; rest_ 18; rest_ 19
| mtlr r0;