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Swap register assignments for BASE and RB.

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Feels more natural this way round. Puts all parameters in the range
[r4,r7] and BASE is now the register used as the literal pool, which
seems appropriate.
This commit is contained in:
Michael Munday 2017-01-17 09:46:02 -05:00
parent a40e905aec
commit 695c59703c
1 changed files with 2 additions and 2 deletions
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4
src/vm_s390x.dasc
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@ -38,15 +38,15 @@
|//-----------------------------------------------------------------------
|
|// Fixed register assignments for the interpreter, callee-saved.
|.define BASE, r7 // Base of current Lua stack frame.
|.define KBASE, r8 // Constants of current Lua function.
|.define PC, r9 // Next PC.
|.define DISPATCH, r10 // Opcode dispatch table.
|.define ITYPE, r11 // Temporary used for type information.
|.define BASE, r13 // Base of current Lua stack frame.
|
|// The following temporaries are not saved across C calls, except for RB.
|.define RA, r4 // Overlaps CARG3.
|.define RB, r13 // Must be callee-save.
|.define RB, r7 // Must be callee-save.
|.define RC, r5 // Overlaps CARG4.
|.define RD, r6 // Overlaps CARG5.
|