[project @ 1998-04-16 09:08:32 by simonm]

[ghc-hetmet.git] / ghc / includes / MachRegs.lh

diff --git a/ghc/includes/MachRegs.lh b/ghc/includes/MachRegs.lh
index a45aa6f..ccdccd1 100644 (file)
--- a/ghc/includes/MachRegs.lh
+++ b/ghc/includes/MachRegs.lh
@@ -9,7 +9,7 @@ NB: THIS FILE IS INCLUDED IN HASKELL SOURCE!
 #ifndef MACHREGS_H
 #define MACHREGS_H
 
-#if defined(__STG_GCC_REGS__) || defined(COMPILING_GHC)
+#if defined(__STG_GCC_REGS__) || defined(COMPILING_NCG)
 
 #include "StgMachDeps.h"
 
@@ -701,36 +701,47 @@ We can steal some, but we might have to save/restore around ccalls.
 %*                                                                     *
 %************************************************************************
 
-\tr{r14}--\tr{r31} are wonderful callee-save registers.
-\tr{r0}--\tr{r13} are caller-save registers.
+0      system glue?    (caller-save, volatile)
+1      SP              (callee-save, non-volatile)
+2      RTOC            (callee-save, non-volatile)
+3-10   args/return     (caller-save, volatile)
+11,12  system glue?    (caller-save, volatile)
+13-31                  (callee-save, non-volatile)
 
-\tr{%fr14}--\tr{%fr31} are callee-save floating-point registers.
+f0                     (caller-save, volatile)
+f1-f13 args/return     (caller-save, volatile)
+f14-f31                        (callee-save, non-volatile)
+
+\tr{13}--\tr{31} are wonderful callee-save registers.
+\tr{0}--\tr{12} are caller-save registers.
+
+\tr{%f14}--\tr{%f31} are callee-save floating-point registers.
 
 I think we can do the Whole Business with callee-save registers only!
 
 \begin{code}
-#if powerpc_TARGET_ARCH
+#if powerpc_TARGET_ARCH || rs6000_TARGET_ARCH
 
 #define REG(x) __asm__(#x)
 
 #if defined(MARK_REG_MAP)
-#define REG_Mark       r14
-#define REG_MStack     r15
-#define REG_MRoot      r16
-#define REG_BitArray    r17
-#define REG_HeapBase   r18
-#define REG_HeapLim    r19
+#define REG_Mark       r22
+#define REG_MStack     r23
+#define REG_MRoot      r24
+#define REG_BitArray    r25
+#define REG_HeapBase   r26
+#define REG_HeapLim    r27
 #else
 #if defined(SCAN_REG_MAP)
-#define REG_Scan       r14
-#define REG_New        r15
-#define REG_LinkLim    r16
+#define REG_Scan       r22
+#define REG_New        r23
+#define REG_LinkLim    r24
 #else
 #if defined(SCAV_REG_MAP)
-#define REG_Scav       r14
-#define REG_ToHp       r15
+#define REG_Scav       r22
+#define REG_ToHp       r23
 #if defined(GCap) || defined(GCgn)
-#define REG_OldGen     r16
+#define REG_OldGen     r24
 #endif /* GCap || GCgn */
 #else  /* default: MAIN_REG_MAP */
 
@@ -907,7 +918,7 @@ discretion being the better part of valor, we also don't take
 Concluding multi-slurp protection:
 \begin{code}
 
-#endif /* __STG_GCC_REGS__ || COMPILING_GHC */
+#endif /* __STG_GCC_REGS__ || COMPILING_NCG */
 
 #endif /* MACHREGS_H */
 \end{code}