1 /*-------------------------------------------------------------------------
3 pcode.h - post code generation
4 Written By - Scott Dattalo scott@dattalo.com
5 Ported to PIC16 By - Martin Dubuc m.dubuc@rogers.com
7 This program is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 2, or (at your option) any
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 -------------------------------------------------------------------------*/
29 The post code generation is an assembler optimizer. The assembly code
30 produced by all of the previous steps is fully functional. This step
31 will attempt to analyze the flow of the assembly code and agressively
32 optimize it. The peep hole optimizer attempts to do the same thing.
33 As you may recall, the peep hole optimizer replaces blocks of assembly
34 with more optimal blocks (e.g. removing redundant register loads).
35 However, the peep hole optimizer has to be somewhat conservative since
36 an assembly program has implicit state information that's unavailable
37 when only a few instructions are examined.
38 Consider this example:
44 The movf seems redundant since we know that the W register already
45 contains the same value of t1. So a peep hole optimizer is tempted to
46 remove the "movf". However, this is dangerous since the movf affects
47 the flags in the status register (specifically the Z flag) and subsequent
48 code may depend upon this. Look at these two examples:
52 movf t1,w ; Can't remove this movf
58 movf t1,w ; This movf can be removed
59 xorwf t2,w ; since xorwf will over write Z
69 /***********************************************************************
72 * The DFPRINTF macro will call fprintf if PCODE_DEBUG is defined.
73 * The macro is used like:
75 * DPRINTF(("%s #%d\n","test", 1));
77 * The double parenthesis (()) are necessary
79 ***********************************************************************/
83 #define DFPRINTF(args) (fprintf args)
85 #define DFPRINTF(args) ;
89 /***********************************************************************
90 * PIC status bits - this will move into device dependent headers
91 ***********************************************************************/
97 #define PIC_IRP_BIT 7 /* Indirect register page select */
99 /***********************************************************************
100 * PIC INTCON bits - this will move into device dependent headers
101 ***********************************************************************/
102 #define PIC_RBIF_BIT 0 /* Port B level has changed flag */
103 #define PIC_INTF_BIT 1 /* Port B bit 0 interrupt on edge flag */
104 #define PIC_T0IF_BIT 2 /* TMR0 has overflowed flag */
105 #define PIC_RBIE_BIT 3 /* Port B level has changed - Interrupt Enable */
106 #define PIC_INTE_BIT 4 /* Port B bit 0 interrupt on edge - Int Enable */
107 #define PIC_T0IE_BIT 5 /* TMR0 overflow Interrupt Enable */
108 #define PIC_PIE_BIT 6 /* Peripheral Interrupt Enable */
109 #define PIC_GIE_BIT 7 /* Global Interrupt Enable */
111 /***********************************************************************
112 * PIC bank definitions
113 ***********************************************************************/
114 #define PIC_BANK_FIRST 0
115 #define PIC_BANK_LAST 0xf
118 /***********************************************************************
120 ***********************************************************************/
126 /***********************************************************************
128 * PIC_OPTYPE - Operand types that are specific to the PIC architecture
130 * If a PIC assembly instruction has an operand then here is where we
131 * associate a type to it. For example,
135 * The movf has two operands: 'reg' and the W register. 'reg' is some
136 * arbitrary general purpose register, hence it has the type PO_GPR_REGISTER.
137 * The W register, which is the PIC's accumulator, has the type PO_W.
139 ***********************************************************************/
145 PO_NONE=0, // No operand e.g. NOP
146 PO_W, // The working register (as a destination)
147 PO_WREG, // The working register (as a file register)
148 PO_STATUS, // The 'STATUS' register
149 PO_BSR, // The 'BSR' register
150 PO_FSR0, // The "file select register" (in PIC18 family it's one
152 PO_INDF0, // The Indirect register
153 PO_INTCON, // Interrupt Control register
154 PO_GPR_REGISTER, // A general purpose register
155 PO_GPR_BIT, // A bit of a general purpose register
156 PO_GPR_TEMP, // A general purpose temporary register
157 PO_SFR_REGISTER, // A special function register (e.g. PORTA)
158 PO_PCL, // Program counter Low register
159 PO_PCLATH, // Program counter Latch high register
160 PO_PCLATU, // Program counter Latch upper register
161 PO_PRODL, // Product Register Low
162 PO_PRODH, // Product Register High
163 PO_LITERAL, // A constant
164 PO_REL_ADDR, // A relative address
165 PO_IMMEDIATE, // (8051 legacy)
166 PO_DIR, // Direct memory (8051 legacy)
167 PO_CRY, // bit memory (8051 legacy)
168 PO_BIT, // bit operand.
169 PO_STR, // (8051 legacy)
171 PO_WILD // Wild card operand in peep optimizer
175 /***********************************************************************
179 * This is not a list of the PIC's opcodes per se, but instead
180 * an enumeration of all of the different types of pic opcodes.
182 ***********************************************************************/
186 POC_WILD=-1, /* Wild card - used in the pCode peep hole optimizer
187 * to represent ANY pic opcode */
288 /***********************************************************************
289 * PC_TYPE - pCode Types
290 ***********************************************************************/
294 PC_COMMENT=0, /* pCode is a comment */
295 PC_INLINE, /* user's inline code */
296 PC_OPCODE, /* PORT dependent opcode */
297 PC_LABEL, /* assembly label */
298 PC_FLOW, /* flow analysis */
299 PC_FUNCTION, /* Function start or end */
300 PC_WILD, /* wildcard - an opcode place holder used
301 * in the pCode peep hole optimizer */
302 PC_CSOURCE, /* C-Source Line */
303 PC_ASMDIR, /* Assembler directive */
304 PC_BAD, /* Mark the pCode object as being bad */
305 PC_INFO /* pCode informatio node, used primarily in optimizing */
309 /***********************************************************************
310 * INFO_TYPE - information node types
311 ***********************************************************************/
315 INF_OPTIMIZATION, /* structure contains optimization information */
316 INF_LOCALREGS /* structure contains local register information */
321 /***********************************************************************
322 * OPT_TYPE - optimization node types
323 ***********************************************************************/
327 OPT_BEGIN, /* mark beginning of optimization block */
328 OPT_END, /* mark ending of optimization block */
329 OPT_JUMPTABLE_BEGIN, /* mark beginning of a jumptable */
330 OPT_JUMPTABLE_END /* mark end of jumptable */
333 /***********************************************************************
334 * LR_TYPE - optimization node types
335 ***********************************************************************/
339 LR_ENTRY_BEGIN, /* mark beginning of optimization block */
340 LR_ENTRY_END, /* mark ending of optimization block */
346 /************************************************/
347 /*************** Structures ********************/
348 /************************************************/
349 /* These are here as forward references - the
350 * full definition of these are below */
352 struct pCodeWildBlock;
353 struct pCodeRegLives;
355 /*************************************************
358 The first step in optimizing pCode is determining
359 the program flow. This information is stored in
360 single-linked lists in the for of 'from' and 'to'
361 objects with in a pcode. For example, most instructions
362 don't involve any branching. So their from branch
363 points to the pCode immediately preceding them and
364 their 'to' branch points to the pcode immediately
365 following them. A skip instruction is an example of
366 a pcode that has multiple (in this case two) elements
367 in the 'to' branch. A 'label' pcode is an where there
368 may be multiple 'from' branches.
369 *************************************************/
371 typedef struct pBranch
373 struct pCode *pc; // Next pCode in a branch
374 struct pBranch *next; /* If more than one branch
375 * the next one is here */
379 /*************************************************
382 pCode Operand structure.
383 For those assembly instructions that have arguments,
384 the pCode will have a pCodeOp in which the argument
385 can be stored. For example
389 'some_register' will be stored/referenced in a pCodeOp
391 *************************************************/
393 typedef struct pCodeOp
401 typedef struct pCodeOpBit
405 unsigned int inBitSpace: 1; /* True if in bit space, else
406 just a bit of a register */
409 typedef struct pCodeOpLit
415 typedef struct pCodeOpLit2
423 typedef struct pCodeOpImmd
426 int offset; /* low,high or upper byte of immediate value */
427 int index; /* add this to the immediate value */
428 unsigned _const:1; /* is in code space */
430 int rIdx; /* If this immd points to a register */
431 struct regs *r; /* then this is the reg. */
435 typedef struct pCodeOpLabel
441 typedef struct pCodeOpReg
443 pCodeOp pcop; // Can be either GPR or SFR
444 int rIdx; // Index into the register table
446 int instance; // byte # of Multi-byte registers
450 typedef struct pCodeOpReg2
452 pCodeOp pcop; // used by default to all references
455 int instance; // assume same instance for both operands
458 pCodeOp *pcop2; // second memory operand
461 typedef struct pCodeOpRegBit
463 pCodeOpReg pcor; // The Register containing this bit
464 int bit; // 0-7 bit number.
465 PIC_OPTYPE subtype; // The type of this register.
466 unsigned int inBitSpace: 1; /* True if in bit space, else
467 just a bit of a register */
471 typedef struct pCodeOpWild
475 struct pCodeWildBlock *pcwb;
477 int id; /* index into an array of char *'s that will match
478 * the wild card. The array is in *pcp. */
479 pCodeOp *subtype; /* Pointer to the Operand type into which this wild
480 * card will be expanded */
481 pCodeOp *matched; /* When a wild matches, we'll store a pointer to the
482 * opcode we matched */
484 pCodeOp *pcop2; /* second operand if exists */
489 typedef struct pCodeOpOpt
493 OPT_TYPE type; /* optimization node type */
495 char *key; /* key by which a block is identified */
498 typedef struct pCodeOpLocalReg
505 /*************************************************
508 Here is the basic build block of a PIC instruction.
509 Each pic instruction will get allocated a pCode.
510 A linked list of pCodes makes a program.
512 **************************************************/
518 struct pCode *prev; // The pCode objects are linked together
519 struct pCode *next; // in doubly linked lists.
521 int seq; // sequence number
523 struct pBlock *pb; // The pBlock that contains this pCode.
525 /* "virtual functions"
526 * The pCode structure is like a base class
527 * in C++. The subsequent structures that "inherit"
528 * the pCode structure will initialize these function
529 * pointers to something useful */
530 // void (*analyze) (struct pCode *_this);
531 void (*destruct)(struct pCode *_this);
532 void (*print) (FILE *of,struct pCode *_this);
537 /*************************************************
539 **************************************************/
541 typedef struct pCodeComment
551 /*************************************************
553 **************************************************/
555 typedef struct pCodeCSource
567 /*************************************************
569 **************************************************/
571 /*************************************************
574 The Flow object is used as marker to separate
575 the assembly code into contiguous chunks. In other
576 words, everytime an instruction cause or potentially
577 causes a branch, a Flow object will be inserted into
578 the pCode chain to mark the beginning of the next
581 **************************************************/
583 typedef struct pCodeFlow
588 pCode *end; /* Last pCode in this flow. Note that
589 the first pCode is pc.next */
591 /* set **uses; * map the pCode instruction inCond and outCond conditions
592 * in this array of set's. The reason we allocate an
593 * array of pointers instead of declaring each type of
594 * usage is because there are port dependent usage definitions */
595 //int nuses; /* number of uses sets */
597 set *from; /* flow blocks that can send control to this flow block */
598 set *to; /* flow blocks to which this one can send control */
599 struct pCodeFlow *ancestor; /* The most immediate "single" pCodeFlow object that
600 * executes prior to this one. In many cases, this
601 * will be just the previous */
603 int inCond; /* Input conditions - stuff assumed defined at entry */
604 int outCond; /* Output conditions - stuff modified by flow block */
606 int firstBank; /* The first and last bank flags are the first and last */
607 int lastBank; /* register banks used within one flow object */
612 set *registers;/* Registers used in this flow */
616 /*************************************************
619 The Flow Link object is used to record information
620 about how consecutive excutive Flow objects are related.
621 The pCodeFlow objects demarcate the pCodeInstructions
622 into contiguous chunks. The FlowLink records conflicts
623 in the discontinuities. For example, if one Flow object
624 references a register in bank 0 and the next Flow object
625 references a register in bank 1, then there is a discontinuity
626 in the banking registers.
629 typedef struct pCodeFlowLink
631 pCodeFlow *pcflow; /* pointer to linked pCodeFlow object */
633 int bank_conflict; /* records bank conflicts */
637 /*************************************************
640 Here we describe all the facets of a PIC instruction
641 (expansion for the 18cxxx is also provided).
643 **************************************************/
645 typedef struct pCodeInstruction
650 PIC_OPCODE op; // The opcode of the instruction.
652 char const * const mnemonic; // Pointer to mnemonic string
654 char isize; // pCode instruction size
656 pBranch *from; // pCodes that execute before this one
657 pBranch *to; // pCodes that execute after
658 pBranch *label; // pCode instructions that have labels
660 pCodeOp *pcop; /* Operand, if this instruction has one */
661 pCodeFlow *pcflow; /* flow block to which this instruction belongs */
662 pCodeCSource *cline; /* C Source from which this instruction was derived */
664 unsigned int num_ops; /* Number of operands (0,1,2 for mid range pics) */
665 unsigned int isModReg: 1; /* If destination is W or F, then 1==F */
666 unsigned int isBitInst: 1; /* e.g. BCF */
667 unsigned int isBranch: 1; /* True if this is a branching instruction */
668 unsigned int isSkip: 1; /* True if this is a skip instruction */
669 unsigned int isLit: 1; /* True if this instruction has an literal operand */
670 unsigned int isAccess: 1; /* True if this instruction has an access RAM operand */
671 unsigned int isFastCall: 1; /* True if this instruction has a fast call/return mode select operand */
672 unsigned int is2MemOp: 1; /* True is second operand is a memory operand VR - support for MOVFF */
673 unsigned int is2LitOp: 1; /* True if instruction takes 2 literal operands VR - support for LFSR */
675 PIC_OPCODE inverted_op; /* Opcode of instruction that's the opposite of this one */
676 unsigned int inCond; // Input conditions for this instruction
677 unsigned int outCond; // Output conditions for this instruction
679 #define PCI_MAGIC 0x6e12
680 unsigned int pci_magic; // sanity check for pci initialization
685 /*************************************************
687 **************************************************/
689 typedef struct pCodeAsmDir
691 pCodeInstruction pci;
698 /*************************************************
700 **************************************************/
702 typedef struct pCodeLabel
709 int force; /* label cannot be optimized out */
713 /*************************************************
715 **************************************************/
717 typedef struct pCodeFunction
723 char *fname; /* If NULL, then this is the end of
724 a function. Otherwise, it's the
725 start and the name is contained
728 pBranch *from; // pCodes that execute before this one
729 pBranch *to; // pCodes that execute after
730 pBranch *label; // pCode instructions that have labels
732 int ncalled; /* Number of times function is called */
734 int absblock; /* hack to emulate a block pCodes in absolute position
735 but not inside a function */
736 int stackusage; /* stack positions used in function */
741 /*************************************************
743 **************************************************/
745 typedef struct pCodeWild
748 pCodeInstruction pci;
750 int id; /* Index into the wild card array of a peepBlock
751 * - this wild card will get expanded into that pCode
752 * that is stored at this index */
754 /* Conditions on wild pcode instruction */
755 int mustBeBitSkipInst:1;
756 int mustNotBeBitSkipInst:1;
757 int invertBitSkipInst:1;
759 pCodeOp *operand; // Optional operand
760 pCodeOp *label; // Optional label
765 /*************************************************
768 Here are stored generic informaton
769 *************************************************/
770 typedef struct pCodeInfo
772 pCodeInstruction pci;
774 INFO_TYPE type; /* info node type */
776 pCodeOp *oper1; /* info node arguments */
780 /*************************************************
783 Here are PIC program snippets. There's a strong
784 correlation between the eBBlocks and pBlocks.
785 SDCC subdivides a C program into managable chunks.
786 Each chunk becomes a eBBlock and ultimately in the
789 **************************************************/
791 typedef struct pBlock
793 memmap *cmemmap; /* The snippet is from this memmap */
794 char dbName; /* if cmemmap is NULL, then dbName will identify the block */
795 pCode *pcHead; /* A pointer to the first pCode in a link list of pCodes */
796 pCode *pcTail; /* A pointer to the last pCode in a link list of pCodes */
798 struct pBlock *next; /* The pBlocks will form a doubly linked list */
801 set *function_entries; /* dll of functions in this pblock */
807 unsigned visited:1; /* set true if traversed in call tree */
809 unsigned seq; /* sequence number of this pBlock */
813 /*************************************************
816 The collection of pBlock program snippets are
817 placed into a linked list that is implemented
818 in the pFile structure.
820 The pcode optimizer will parse the pFile.
822 **************************************************/
826 pBlock *pbHead; /* A pointer to the first pBlock */
827 pBlock *pbTail; /* A pointer to the last pBlock */
829 pBranch *functions; /* A SLL of functions in this pFile */
835 /*************************************************
838 The pCodeWildBlock object keeps track of the wild
839 variables, operands, and opcodes that exist in
841 **************************************************/
842 typedef struct pCodeWildBlock {
844 struct pCodePeep *pcp; // pointer back to ... I don't like this...
846 int nvars; // Number of wildcard registers in target.
847 char **vars; // array of pointers to them
849 int nops; // Number of wildcard operands in target.
850 pCodeOp **wildpCodeOps; // array of pointers to the pCodeOp's.
852 int nwildpCodes; // Number of wildcard pCodes in target/replace
853 pCode **wildpCodes; // array of pointers to the pCode's.
857 /*************************************************
860 The pCodePeep object mimics the peep hole optimizer
861 in the main SDCC src (e.g. SDCCpeeph.c). Essentially
862 there is a target pCode chain and a replacement
863 pCode chain. The target chain is compared to the
864 pCode that is generated by gen.c. If a match is
865 found then the pCode is replaced by the replacement
867 **************************************************/
868 typedef struct pCodePeep {
869 pCodeWildBlock target; // code we'd like to optimize
870 pCodeWildBlock replace; // and this is what we'll optimize it with.
873 //pBlock replace; // and this is what we'll optimize it with.
877 /* (Note: a wildcard register is a place holder. Any register
878 * can be replaced by the wildcard when the pcode is being
879 * compared to the target. */
881 /* Post Conditions. A post condition is a condition that
882 * must be either true or false before the peep rule is
883 * accepted. For example, a certain rule may be accepted
884 * if and only if the Z-bit is not used as an input to
885 * the subsequent instructions in a pCode chain.
887 unsigned int postFalseCond;
888 unsigned int postTrueCond;
892 /*************************************************
894 pCode peep command definitions
896 Here are some special commands that control the
897 way the peep hole optimizer behaves
899 **************************************************/
901 enum peepCommandTypes{
908 /*************************************************
909 peepCommand structure stores the peep commands.
911 **************************************************/
913 typedef struct peepCommand {
918 /*************************************************
921 **************************************************/
922 #define PCODE(x) ((pCode *)(x))
923 #define PCI(x) ((pCodeInstruction *)(x))
924 #define PCL(x) ((pCodeLabel *)(x))
925 #define PCF(x) ((pCodeFunction *)(x))
926 #define PCFL(x) ((pCodeFlow *)(x))
927 #define PCFLINK(x)((pCodeFlowLink *)(x))
928 #define PCW(x) ((pCodeWild *)(x))
929 #define PCCS(x) ((pCodeCSource *)(x))
930 #define PCAD(x) ((pCodeAsmDir *)(x))
931 #define PCINF(x) ((pCodeInfo *)(x))
933 #define PCOP(x) ((pCodeOp *)(x))
934 //#define PCOB(x) ((pCodeOpBit *)(x))
935 #define PCOL(x) ((pCodeOpLit *)(x))
936 #define PCOI(x) ((pCodeOpImmd *)(x))
937 #define PCOLAB(x) ((pCodeOpLabel *)(x))
938 #define PCOR(x) ((pCodeOpReg *)(x))
939 #define PCOR2(x) ((pCodeOpReg2 *)(x))
940 #define PCORB(x) ((pCodeOpRegBit *)(x))
941 #define PCOO(x) ((pCodeOpOpt *)(x))
942 #define PCOLR(x) ((pCodeOpLocalReg *)(x))
943 #define PCOW(x) ((pCodeOpWild *)(x))
944 #define PCOW2(x) (PCOW(PCOW(x)->pcop2))
945 #define PBR(x) ((pBranch *)(x))
947 #define PCWB(x) ((pCodeWildBlock *)(x))
951 macros for checking pCode types
953 #define isPCI(x) ((PCODE(x)->type == PC_OPCODE))
954 #define isPCI_BRANCH(x) ((PCODE(x)->type == PC_OPCODE) && PCI(x)->isBranch)
955 #define isPCI_SKIP(x) ((PCODE(x)->type == PC_OPCODE) && PCI(x)->isSkip)
956 #define isPCI_LIT(x) ((PCODE(x)->type == PC_OPCODE) && PCI(x)->isLit)
957 #define isPCI_BITSKIP(x)((PCODE(x)->type == PC_OPCODE) && PCI(x)->isSkip && PCI(x)->isBitInst)
958 #define isPCFL(x) ((PCODE(x)->type == PC_FLOW))
959 #define isPCF(x) ((PCODE(x)->type == PC_FUNCTION))
960 #define isPCL(x) ((PCODE(x)->type == PC_LABEL))
961 #define isPCW(x) ((PCODE(x)->type == PC_WILD))
962 #define isPCCS(x) ((PCODE(x)->type == PC_CSOURCE))
963 #define isPCAD(x) ((PCODE(x)->type == PC_ASMDIR))
965 #define isCALL(x) ((isPCI(x)) && (PCI(x)->op == POC_CALL))
966 #define isSTATUS_REG(r) ((r)->pc_type == PO_STATUS)
967 #define isBSR_REG(r) ((r)->pc_type == PO_BSR)
968 #define isACCESS_BANK(r) (r->accessBank)
972 #define isPCOLAB(x) ((PCOP(x)->type) == PO_LABEL)
974 /*-----------------------------------------------------------------*
976 *-----------------------------------------------------------------*/
978 pCode *pic16_newpCode (PIC_OPCODE op, pCodeOp *pcop); // Create a new pCode given an operand
979 pCode *pic16_newpCodeCharP(char *cP); // Create a new pCode given a char *
980 pCode *pic16_newpCodeInlineP(char *cP); // Create a new pCode given a char *
981 pCode *pic16_newpCodeFunction(char *g, char *f); // Create a new function
982 pCode *pic16_newpCodeLabel(char *name,int key); // Create a new label given a key
983 pCode *pic16_newpCodeLabelFORCE(char *name, int key); // Same as newpCodeLabel but label cannot be optimized out
984 pCode *pic16_newpCodeCSource(int ln, char *f, char *l); // Create a new symbol line
985 pBlock *pic16_newpCodeChain(memmap *cm,char c, pCode *pc); // Create a new pBlock
986 void pic16_printpBlock(FILE *of, pBlock *pb); // Write a pBlock to a file
987 void pic16_addpCode2pBlock(pBlock *pb, pCode *pc); // Add a pCode to a pBlock
988 void pic16_addpBlock(pBlock *pb); // Add a pBlock to a pFile
989 void pic16_copypCode(FILE *of, char dbName); // Write all pBlocks with dbName to *of
990 void pic16_movepBlock2Head(char dbName); // move pBlocks around
991 void pic16_AnalyzepCode(char dbName);
992 void pic16_OptimizeLocalRegs(void);
993 void pic16_AssignRegBanks(void);
994 void pic16_printCallTree(FILE *of);
995 void pCodePeepInit(void);
996 void pic16_pBlockConvert2ISR(pBlock *pb);
997 void pic16_pBlockConvert2Absolute(pBlock *pb);
998 void pic16_initDB(void);
999 void pic16_emitDB(char c, char ptype, void *p); // Add DB directives to a pBlock
1000 void pic16_emitDS(char *s, char ptype, void *p);
1001 void pic16_flushDB(char ptype, void *p); // Add pending DB data to a pBlock
1003 pCode *pic16_newpCodeAsmDir(char *asdir, char *argfmt, ...);
1005 pCodeOp *pic16_newpCodeOpLabel(char *name, int key);
1006 pCodeOp *pic16_newpCodeOpImmd(char *name, int offset, int index, int code_space);
1007 pCodeOp *pic16_newpCodeOpLit(int lit);
1008 pCodeOp *pic16_newpCodeOpLit2(int lit, pCodeOp *arg2);
1009 pCodeOp *pic16_newpCodeOpBit(char *name, int bit,int inBitSpace, PIC_OPTYPE subt);
1010 pCodeOp *pic16_newpCodeOpRegFromStr(char *name);
1011 pCodeOp *pic16_newpCodeOp(char *name, PIC_OPTYPE p);
1012 pCodeOp *pic16_pCodeOpCopy(pCodeOp *pcop);
1014 pCode *pic16_newpCodeInfo(INFO_TYPE type, pCodeOp *pcop);
1015 pCodeOp *pic16_newpCodeOpOpt(OPT_TYPE type, char *key);
1016 pCodeOp *pic16_newpCodeOpLocalRegs(LR_TYPE type);
1018 pCode * pic16_findNextInstruction(pCode *pci);
1019 pCode * pic16_findNextpCode(pCode *pc, PC_TYPE pct);
1020 int pic16_isPCinFlow(pCode *pc, pCode *pcflow);
1021 struct regs * pic16_getRegFromInstruction(pCode *pc);
1022 struct regs * pic16_getRegFromInstruction2(pCode *pc);
1023 char *pic16_get_op(pCodeOp *pcop,char *buffer, size_t size);
1024 char *pic16_get_op2(pCodeOp *pcop,char *buffer, size_t size);
1025 char *dumpPicOptype(PIC_OPTYPE type);
1027 extern void pic16_pcode_test(void);
1028 extern int pic16_debug_verbose;
1029 extern int pic16_pcode_verbose;
1032 //#define debugf(frm, rest...) _debugf(__FILE__, __LINE__, frm, rest)
1033 #define debugf(frm, rest) _debugf(__FILE__, __LINE__, frm, rest)
1034 #define debugf2(frm, arg1, arg2) _debugf(__FILE__, __LINE__, frm, arg1, arg2)
1035 #define debugf3(frm, arg1, arg2, arg3) _debugf(__FILE__, __LINE__, frm, arg1, arg2, arg3)
1039 extern void _debugf(char *f, int l, char *frm, ...);
1042 /*-----------------------------------------------------------------*
1044 *-----------------------------------------------------------------*/
1046 extern pCodeOpReg pic16_pc_status;
1047 extern pCodeOpReg pic16_pc_intcon;
1048 extern pCodeOpReg pic16_pc_pcl;
1049 extern pCodeOpReg pic16_pc_pclath;
1050 extern pCodeOpReg pic16_pc_pclatu; // patch 14
1051 extern pCodeOpReg pic16_pc_wreg;
1052 extern pCodeOpReg pic16_pc_tosl; // patch 14
1053 extern pCodeOpReg pic16_pc_tosh; // patch 14
1054 extern pCodeOpReg pic16_pc_tosu; // patch 14
1055 extern pCodeOpReg pic16_pc_tblptrl; // patch 15
1056 extern pCodeOpReg pic16_pc_tblptrh; //
1057 extern pCodeOpReg pic16_pc_tblptru; //
1058 extern pCodeOpReg pic16_pc_tablat; // patch 15
1059 extern pCodeOpReg pic16_pc_bsr;
1060 extern pCodeOpReg pic16_pc_fsr0;
1061 extern pCodeOpReg pic16_pc_fsr0l;
1062 extern pCodeOpReg pic16_pc_fsr0h;
1063 extern pCodeOpReg pic16_pc_fsr1l;
1064 extern pCodeOpReg pic16_pc_fsr1h;
1065 extern pCodeOpReg pic16_pc_fsr2l;
1066 extern pCodeOpReg pic16_pc_fsr2h;
1067 extern pCodeOpReg pic16_pc_indf0;
1068 extern pCodeOpReg pic16_pc_postinc0;
1069 extern pCodeOpReg pic16_pc_postdec0;
1070 extern pCodeOpReg pic16_pc_preinc0;
1071 extern pCodeOpReg pic16_pc_plusw0;
1072 extern pCodeOpReg pic16_pc_indf1;
1073 extern pCodeOpReg pic16_pc_postinc1;
1074 extern pCodeOpReg pic16_pc_postdec1;
1075 extern pCodeOpReg pic16_pc_preinc1;
1076 extern pCodeOpReg pic16_pc_plusw1;
1077 extern pCodeOpReg pic16_pc_indf2;
1078 extern pCodeOpReg pic16_pc_postinc2;
1079 extern pCodeOpReg pic16_pc_postdec2;
1080 extern pCodeOpReg pic16_pc_preinc2;
1081 extern pCodeOpReg pic16_pc_plusw2;
1082 extern pCodeOpReg pic16_pc_prodl;
1083 extern pCodeOpReg pic16_pc_prodh;
1085 extern pCodeOpReg pic16_pc_eecon1;
1086 extern pCodeOpReg pic16_pc_eecon2;
1087 extern pCodeOpReg pic16_pc_eedata;
1088 extern pCodeOpReg pic16_pc_eeadr;
1090 extern pCodeOpReg pic16_pc_kzero;
1091 extern pCodeOpReg pic16_pc_wsave; /* wsave and ssave are used to save W and the Status */
1092 extern pCodeOpReg pic16_pc_ssave; /* registers during an interrupt */
1094 extern pCodeOpReg pic16_pc_gpsimio;
1095 extern pCodeOpReg pic16_pc_gpsimio2;
1097 #endif // __PCODE_H__