mirror of
https://github.com/Mercury-Language/mercury.git
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0921310ca5
With these changes, it now passes all tests/general/* test cases
except those with floats.
Changes to the compiler:
- Added extra argument to test instruction (string comparisons were
being treated as integer comparisons; properly deals with different
atomic type unifications now)
- Changed bytecode stub functions
Changes to the bytecode interpreter:
- Cleaned up comments
- Forked part of mb_machine to mb_exec
- Added support for submodules
- Added support for nondet procedures
- Added support for cc_xxx procedures
- Finished higher order calls
- Added (very basic) debug interface
- Added support for type information
- Added memory corruption checking
- Changed machine state dump formatting
- Fixed bug in nested switches
- Resolved builtin__unify and builtin_compare failures
- Modified bytecode tags generation so .c & .m tag files are separate
- Header usage rationalised
Changes to test suite:
- Added test cases for the bytecode interpreter.
- More work on the bytecode interpreter.
bytecode/Mmakefile:
Modified bytecode tags generation so .c & .m tag files are separate.
mb_machine split into mb_exec.
test file renamed to simple.m (copy over tests/simple??.m to test).
bytecode/TODO:
Updated.
bytecode/mb_basetypes.h:
Removed redundant MB_WORD_BITS (use MR_WORDBITS instead).
bytecode/mb_bytecode.h:
bytecode/mpb_bytecode.c:
Formatting changes
Third test instruction argument added.
bytecode/mb_disasm.h:
bytecode/mb_disasm.c:
Formatting changes.
Third test instruction argument added.
Added MB_FMT_INTWIDE.
bytecode/mb_exec.h:
bytecode/mb_exec.c:
bytecode/mb_machine.h:
bytecode/mb_machine.c:
mb_machine* split into mb_exec* and mb_machine*.
Almost all instructions now work (see important changes above).
bytecode/mb_interface.h:
bytecode/mb_interface.c:
Added nondet stub functions.
Added functions to lookup builtin compiler procedures:
do_redo, do_fail, __unify, __compare.
Removed old debugging code.
Stack layout changed to support nondet procedures.
bytecode/mb_interface_stub.c:
bytecode/mb_interface_stub.h:
Split off bare minimum of includes for bytecode stubs.
Added nondet stubs.
bytecode/mb_machine_show.c:
Made code cleaner (added subfunctions for MB_show_state).
Added variable names to machine state dump.
bytecode/mb_mem.h:
bytecode/mb_mem.c:
Added limited memory corruption checking.
bytecode/mb_module.h:
bytecode/mb_module.c:
Swapped order of temps & vars on stack.
Fixed nested switches causing random crashes.
Added nested module support.
bytecode/test/simple??.m:
Various test files - just to check that it doesn't crash.
(Most do not output anything & must be verified by stepping through
manually).
compiler/bytecode.m:
compiler/bytecode_gen.m:
Added extra argument to test instruction (otherwise
string comparisons would be treated as integer comparisons).
compiler/code_gen.m:
Changed call structure name in bytecode stub to resolve
issues with illegal characters in C structure names.
Changed bytecode stub header file name.
75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
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/*
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** Copyright (C) 1997-2001 The University of Melbourne.
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** This file may only be copied under the terms of the GNU Library General
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** Public License - see the file COPYING.LIB in the Mercury distribution.
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**
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** High-water marked stack of 'MB_Word's
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**
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*/
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#ifndef MB_STACK_H
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#define MB_STACK_H
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#include "mb_basetypes.h"
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#include "mb_util.h"
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/* Stack structure */
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typedef struct MB_Stack_Struct {
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MB_Word *data;
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MB_Word sp;
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MB_Word max_size: (MR_WORDBITS-1);
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MB_Word gc : 1;
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} MB_Stack;
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/*
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** Allocates space for a new stack. 'gc' indicates whether the stack region
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** should be allocated with the conservative garbage collector (see mb_mem.h)
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** with C's malloc (the garbage collector won't follow references from the C
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** malloc area)
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**
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** For the garbage collector, assumes that data is not atomic
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*/
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MB_Stack MB_stack_new(MB_Word init_size, MB_Bool gc);
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/* Get number of words already pushed on stack */
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MB_Word MB_stack_size(MB_Stack *s);
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/* Pushes a value onto the stack. Return index of pushed word */
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MB_Word MB_stack_push(MB_Stack *s, MB_Word x);
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/* Removes a value off the stack */
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MB_Word MB_stack_pop(MB_Stack *s);
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/* Allocates space for multiple places on the stack */
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/* Return value is index of lowest word */
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MB_Word MB_stack_alloc(MB_Stack *s, MB_Word num_words);
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/* Remove multiple items off the stack */
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void MB_stack_free(MB_Stack *s, MB_Word num_words);
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/* Peek at an item at a given stack index */
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MB_Word MB_stack_peek(MB_Stack *s, MB_Word idx);
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/* Peek at an item index items away from the top of the stack */
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MB_Word MB_stack_peek_rel(MB_Stack *s, MB_Word idx);
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/* Get the address for the item at index
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** NOTE: if you add or remove items, this value could change */
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MB_Word *MB_stack_peek_p(MB_Stack *s, MB_Word idx);
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/* Get the address for the item at index relative to the top of the stack */
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MB_Word *MB_stack_peek_rel_p(MB_Stack *s, MB_Word idx);
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/* Set the value of an item on the stack */
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void MB_stack_poke(MB_Stack *s, MB_Word idx, MB_Word x);
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/* Set the value of an item on the stack, idx items from the top */
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void MB_stack_poke_rel(MB_Stack *s, MB_Word rel_idx, MB_Word value);
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/* Deallocate space for the stack */
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void MB_stack_delete(MB_Stack *s);
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#endif /* MB_STACK_H */
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