diff options
Diffstat (limited to 'bcc/gencode.h')
| -rw-r--r-- | bcc/gencode.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/bcc/gencode.h b/bcc/gencode.h new file mode 100644 index 0000000..370817a --- /dev/null +++ b/bcc/gencode.h @@ -0,0 +1,101 @@ +/* gencode.h - code generation for bcc */ + +/* Copyright (C) 1992 Bruce Evans */ + +#ifdef MC6809 +# define CANABXCUTOFF 7 /* favour ABX over MUL before this */ +#endif +#define EXPRLEVEL 126 /* level for symbols in exptree, > real levs */ +#define OFFKLUDGELEVEL 127 /* level for expr sym with offset from name */ +#define OPERANDSEPARATOR ',' /* char separating operands */ +#define OPSEPARATOR '\t' /* char separating op string and operand */ + +EXTERN uoffset_t arg1size; /* size of 1st arg to function */ + /* zero after allocation of 1st arg */ +EXTERN store_pt callee1mask; /* calleemask with doubleregs masked if nec */ +EXTERN uoffset_t dataoffset; /* amount of initialized data so far */ +#ifdef DEBUG +EXTERN bool_t debugon; /* nonzero to print debugging messages */ + /* depends on zero init */ +#endif +#ifdef FRAMEPOINTER +EXTERN store_pt framelist; /* bit pattern for frame and saved regs */ +EXTERN store_pt frame1list; /* framelist with doubleregs masked if nec */ +EXTERN offset_t framep; /* hardware relative frame ptr */ +#endif +EXTERN uoffset_t func1saveregsize; /* choice of next two values */ +EXTERN uoffset_t funcdsaveregsize; /* funcsaveregsize adjusted for doubles */ +EXTERN uoffset_t funcsaveregsize; /* tot size of framelist/calleemask regs */ +#ifdef I8088 +EXTERN bool_t i386_32; /* nonzero to generate 386 32 bit code */ + /* depends on zero init */ +#endif +#ifdef DYNAMIC_LONG_ORDER +EXTERN bool_t long_big_endian; /* nonzero if high long word is first */ + /* depends on zero init */ +#endif +EXTERN offset_t lowsp; /* low water sp (collects locals in switch) */ +#ifdef POSINDEPENDENT +EXTERN bool_t posindependent; /* nonzero to generate pos-independent code */ + /* depends on zero init */ +#endif +EXTERN bool_t printf_fp; /* nonzero if *printf called with FP arg */ +EXTERN bool_t regarg; /* nonzero to show unloaded register arg */ + /* depends on zero init */ +EXTERN store_t reguse; /* registers in use */ +EXTERN bool_t scanf_fp; /* nonzero if *scanf called with ptr-to-FP */ +EXTERN offset_t softsp; /* software sp (leads sp during declares) */ +EXTERN offset_t sp; /* hardware relative stack ptr */ + /* depends on zero init */ +#ifdef FRAMEPOINTER +EXTERN bool_t stackarg; /* nonzero to show function has arg on stack */ +#endif +EXTERN struct switchstruct *switchnow; /* currently active switch */ + /* depends on NULL init */ + +/* variables to be initialised to nonzero */ + +extern store_pt allindregs; /* mask (in) for index registers */ +extern store_pt allregs; /* mask (in) for registers */ +extern bool_t arg1inreg; /* nonzero to pass 1st arg in reg */ +extern store_pt calleemask; /* mask (in) for regs to be saved by callee */ +extern bool_t callersaves; /* nonzero to make caller save regs */ +extern char *callstring; /* opcode string for call */ +extern store_pt doubleargregs; /* mask (in) for regs for 1st arg if double */ +extern store_pt doubleregs; /* mask (in) for regs to temp contain double */ +extern store_pt doublreturnregs; /* mask (in) for regs for returning double */ +extern offset_t jcclonger; /* amount jcc long jumps are longer */ +extern offset_t jmplonger; /* amount long jumps is longer */ +extern char *jumpstring; /* opcode string for jump */ +extern char *regpulllist; /* reg names and sizes (0 store_t bit first) */ +extern char *regpushlist; /* reg names and sizes (0 store_t bit last) */ +extern store_pt regregs; /* mask (in) for regs which can be reg vars */ + +/* register names */ + +extern char *acclostr; +extern char *accumstr; +extern char *badregstr; +#ifdef I8088 +extern char *dreg1str; +extern char *dreg1bstr; +extern char *dreg2str; +#endif +extern char *ireg0str; +extern char *ireg1str; +extern char *ireg2str; +extern char *localregstr; +#ifdef I8088 +extern char *stackregstr; +#endif + +/* register sizes */ + +extern uoffset_t accregsize; +#ifdef FRAMEPOINTER +extern uoffset_t frameregsize; +#endif +extern uoffset_t maxregsize; +extern uoffset_t opregsize; +extern uoffset_t pshregsize; +extern uoffset_t returnadrsize; |