[project @ 2000-08-03 11:28:35 by simonmar]

[ghc-hetmet.git] / ghc / includes / Constants.h

diff --git a/ghc/includes/Constants.h b/ghc/includes/Constants.h
index c521b76..bc6b162 100644 (file)
--- a/ghc/includes/Constants.h
+++ b/ghc/includes/Constants.h
@@ -1,5 +1,7 @@
 /* ----------------------------------------------------------------------------
- * $Id: Constants.h,v 1.2 1998/12/02 13:21:03 simonm Exp $
+ * $Id: Constants.h,v 1.13 2000/08/03 11:28:35 simonmar Exp $
+ *
+ * (c) The GHC Team, 1998-1999
  *
  * Constants
  *
@@ -16,14 +18,17 @@
    Header Sizes
 
    NOTE: keep these in line with the real definitions in Closures.h
+   HWL: checked GRAN_HDR_SIZE; ok
    -------------------------------------------------------------------------- */
 
 #define STD_HDR_SIZE   1
 #define PROF_HDR_SIZE  1
 #define GRAN_HDR_SIZE  1
-#define TICKY_HDR_SIZE 1
+#define PAR_HDR_SIZE   0
+#define TICKY_HDR_SIZE 0
 
-#define ARR_HDR_SIZE   1
+#define ARR_WORDS_HDR_SIZE  1
+#define ARR_PTRS_HDR_SIZE   2
 
 /* -----------------------------------------------------------------------------
    Info Table sizes
@@ -33,13 +38,15 @@
   
    NOTE: keep these in line with the real definitions in InfoTables.h
 
-   NOTE: the PROF, GRAN and TICKY values are *wrong*  (ToDo)
+   NOTE: the PROF, and GRAN values are *wrong*  (ToDo)
+   HWL: checked GRAN_ITBL_SIZE; ok
    -------------------------------------------------------------------------- */
 
 #define STD_ITBL_SIZE   3
 #define PROF_ITBL_SIZE  1
 #define GRAN_ITBL_SIZE  1
-#define TICKY_ITBL_SIZE 1
+#define PAR_ITBL_SIZE   0
+#define TICKY_ITBL_SIZE 0
 
 /* -----------------------------------------------------------------------------
    Minimum closure sizes
@@ -88,19 +95,23 @@
 
 #define MAX_SPEC_AP_SIZE       8
 
+/* Specialised FUN/THUNK/CONSTR closure types */
+
+#define MAX_SPEC_THUNK_SIZE    2
+#define MAX_SPEC_FUN_SIZE      2
+#define MAX_SPEC_CONSTR_SIZE   2
+
 /* -----------------------------------------------------------------------------
    Update Frame Layout
+   GranSim uses an additional word as bitmask in the update frame; actually,
+   not really necessary, but uses standard closure layout that way
+   NB: UF_RET etc are *wrong* in a GranSim setup; should be increased by 1 
+       if compiling for GranSim (currently not used in compiler) -- HWL
    -------------------------------------------------------------------------- */
-
 #define NOSCC_UF_SIZE  3
+#define GRAN_UF_SIZE   4
 #define SCC_UF_SIZE    4
 
-#if defined(PROFILING)
-#define UF_SIZE        SCC_UF_SIZE
-#else
-#define UF_SIZE NOSCC_UF_SIZE
-#endif
-
 #define UF_RET         0
 #define UF_SU          1
 #define UF_UPDATEE     2
@@ -108,13 +119,14 @@
 
 /* -----------------------------------------------------------------------------
    SEQ frame size
+
+   I don't think seq frames really need sccs --SDM
+   They don't need a GranSim bitmask either, but who cares anyway -- HWL
    -------------------------------------------------------------------------- */
 
-#if defined(PROFILING)
-#define SEQ_FRAME_SIZE 3
-#else
-#define SEQ_FRAME_SIZE 2
-#endif
+#define NOSCC_SEQ_FRAME_SIZE 2
+#define GRAN_SEQ_FRAME_SIZE  3
+#define SCC_SEQ_FRAME_SIZE   3
 
 /* -----------------------------------------------------------------------------
    STG Registers.
@@ -146,6 +158,10 @@
 #define INT64_SIZE     2
 #endif
 
+
+/*---- The size of StgWord, in bytes. */
+#define WORD_SIZE       SIZEOF_VOID_P
+
 /*---- Maximum number of constructors in a data type for direct-returns.  */
 
 #define MAX_VECTORED_RTN 8
@@ -178,18 +194,11 @@
 #define INFO_FIRST_TAG         0
 
 /* -----------------------------------------------------------------------------
-   Context switch timing constants.
-   -------------------------------------------------------------------------- */
-
-#define CS_MAX_FREQUENCY 100              /* context switches per second */
-#define CS_MIN_MILLISECS (1000/CS_MAX_FREQUENCY)/* milliseconds per slice */
- 
-/* -----------------------------------------------------------------------------
    How much C stack to reserve for local temporaries when in the STG
    world.  Used in StgRun.S and StgCRun.c.
    -------------------------------------------------------------------------- */
 
-#define RESERVED_C_STACK_BYTES (512 * SIZEOF_LONG)
+#define RESERVED_C_STACK_BYTES (2048 * SIZEOF_LONG)
 
 /* -----------------------------------------------------------------------------
    How much Haskell stack space to reserve for the saving of registers
@@ -207,8 +216,8 @@
    -------------------------------------------------------------------------- */
 
 /* The size of a block */
-#define BLOCK_SIZE   0x2000
-#define BLOCK_SHIFT  13
+#define BLOCK_SIZE   0x1000
+#define BLOCK_SHIFT  12
 
 /* The size of a megablock */
 #define MBLOCK_SIZE    0x100000