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/*-------------------------------------------------------------------------
SDCCgen51.h - header file for code generation for 8051
Written By - Sandeep Dutta . sandeep.dutta@usa.net (1998)
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-------------------------------------------------------------------------*/
#ifndef Z80GEN_H
#define Z80GEN_H
typedef enum
{
AOP_INVALID,
/* Is a literal */
AOP_LIT = 1,
/* Is in a register */
AOP_REG,
/* Is in direct space */
AOP_DIR,
/* SFR space ($FF00 and above) */
AOP_SFR,
/* Is on the stack */
AOP_STK,
/* Is an immediate value */
AOP_IMMD,
/* Is a string (?) */
AOP_STR,
/* Is in the carry register */
AOP_CRY,
/* Is pointed to by IY */
AOP_IY,
/* Is pointed to by HL */
AOP_HL,
/* Is in the extended stack pointer (IY on the Z80) */
AOP_EXSTK,
/* Is referenced by a pointer in a register pair. */
AOP_PAIRPTR,
/* Read undefined, discard writes */
AOP_DUMMY
}
AOP_TYPE;
/* type asmop : a homogenised type for
all the different spaces an operand can be
in */
typedef struct asmop
{
AOP_TYPE type;
short coff; /* current offset */
short size; /* total size */
unsigned code:1; /* is in Code space */
unsigned paged:1; /* in paged memory */
unsigned freed:1; /* already freed */
unsigned bcInUse:1; /* for banked I/O, which uses bc for the I/O address */
union
{
value *aop_lit; /* if literal */
reg_info *aop_reg[4]; /* array of registers */
char *aop_dir; /* if direct */
char *aop_immd; /* if immediate others are implied */
int aop_stk; /* stack offset when AOP_STK */
const char *aop_str[4]; /* just a string array containing the location */
int aop_pairId; /* The pair ID */
}
aopu;
signed char regs[9]; // Byte of this aop that is in the register. -1 if no byte of this aop is in the reg.
}
asmop;
void genZ80Code (iCode *);
void z80_emitDebuggerSymbol (const char *);
extern bool z80_assignment_optimal;
extern bool should_omit_frame_ptr;
#endif
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