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-rw-r--r--src/buildvm_ppc.dasc56
1 files changed, 56 insertions, 0 deletions
diff --git a/src/buildvm_ppc.dasc b/src/buildvm_ppc.dasc
index 0e83e305..c2363d97 100644
--- a/src/buildvm_ppc.dasc
+++ b/src/buildvm_ppc.dasc
@@ -16,6 +16,62 @@
16| 16|
17|//----------------------------------------------------------------------- 17|//-----------------------------------------------------------------------
18| 18|
19|// Stack layout while in interpreter. Must match with lj_frame.h.
20|.if SPE
21|.define SAVE_LR, 180(sp)
22|.define CFRAME_SPACE, 176 // Delta for sp.
23|// Back chain for sp: 176(sp) <-- sp entering interpreter
24|.define SAVE_r31, 168(sp) // 64 bit register saves.
25|.define SAVE_r30, 160(sp)
26|.define SAVE_r29, 152(sp)
27|.define SAVE_r28, 144(sp)
28|.define SAVE_r27, 136(sp)
29|.define SAVE_r26, 128(sp)
30|.define SAVE_r25, 120(sp)
31|.define SAVE_r24, 112(sp)
32|.define SAVE_r23, 104(sp)
33|.define SAVE_r22, 96(sp)
34|.define SAVE_r21, 88(sp)
35|.define SAVE_r20, 80(sp)
36|.define SAVE_r19, 72(sp)
37|.define SAVE_r18, 64(sp)
38|.define SAVE_r17, 56(sp)
39|.define SAVE_r16, 48(sp)
40|.define SAVE_r15, 40(sp)
41|.define SAVE_r14, 32(sp)
42|.define SAVE_ERRF, 28(sp) // 32 bit C frame info.
43|.define SAVE_NRES, 24(sp)
44|.define SAVE_CFRAME, 20(sp)
45|.define SAVE_L, 16(sp)
46|.define SAVE_PC, 12(sp)
47|.define SAVE_MULTRES, 8(sp)
48|// Next frame lr: 4(sp)
49|// Back chain for sp: 0(sp) <-- sp while in interpreter
50|
51|.macro save_, reg; evstdd reg, SAVE_..reg; .endmacro
52|.macro rest_, reg; evldd reg, SAVE_..reg; .endmacro
53|.endif
54|
55|.macro saveregs
56| stwu sp, -CFRAME_SPACE(sp)
57| save_ r14; save_ r15; save_ r16; save_ r17; save_ r18; save_ r19
58| mflr r0
59| save_ r20; save_ r21; save_ r22; save_ r23; save_ r24; save_ r25
60| stw r0, SAVE_LR
61| save_ r26; save_ r27; save_ r28; save_ r29; save_ r30; save_ r31
62|.endmacro
63|
64|.macro restoreregs
65| lwz r0, SAVE_LR
66| rest_ r14; rest_ r15; rest_ r16; rest_ r17; rest_ r18; rest_ r19
67| mtlr r0
68| rest_ r20; rest_ r21; rest_ r22; rest_ r23; rest_ r24; rest_ r25
69| rest_ r26; rest_ r27; rest_ r28; rest_ r29; rest_ r30; rest_ r31
70| addi sp, sp, CFRAME_SPACE
71|.endmacro
72|
73|//-----------------------------------------------------------------------
74|
19|// Trap for not-yet-implemented parts. 75|// Trap for not-yet-implemented parts.
20|.macro NYI; tw 4, sp, sp; .endmacro 76|.macro NYI; tw 4, sp, sp; .endmacro
21| 77|