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/**************************************************************************
*
* Copyright (C) 2008 Tungsten Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/**
* PPC code generation.
* \author Brian Paul
*/
#ifndef RTASM_PPC_H
#define RTASM_PPC_H
#include "pipe/p_compiler.h"
#define PPC_INST_SIZE 4 /**< 4 bytes / instruction */
#define PPC_NUM_REGS 32
#define PPC_NUM_FP_REGS 32
#define PPC_NUM_VEC_REGS 32
/** Stack pointer register */
#define PPC_REG_SP 1
/** Branch conditions */
#define BRANCH_COND_ALWAYS 0x14 /* binary 1z1zz (z=ignored) */
/** Branch hints */
#define BRANCH_HINT_SUB_RETURN 0x0 /* binary 00 */
struct ppc_function
{
uint32_t *store; /**< instruction buffer */
uint num_inst;
uint max_inst;
uint32_t reg_used; /** used/free general-purpose registers bitmask */
uint32_t fp_used; /** used/free floating point registers bitmask */
uint32_t vec_used; /** used/free vector registers bitmask */
};
extern void ppc_init_func(struct ppc_function *p);
extern void ppc_release_func(struct ppc_function *p);
extern uint ppc_num_instructions(const struct ppc_function *p);
extern void (*ppc_get_func( struct ppc_function *p ))( void );
extern void ppc_dump_func(const struct ppc_function *p);
extern int ppc_reserve_register(struct ppc_function *p, int reg);
extern int ppc_allocate_register(struct ppc_function *p);
extern void ppc_release_register(struct ppc_function *p, int reg);
extern int ppc_allocate_fp_register(struct ppc_function *p);
extern void ppc_release_fp_register(struct ppc_function *p, int reg);
extern int ppc_allocate_vec_register(struct ppc_function *p);
extern void ppc_release_vec_register(struct ppc_function *p, int reg);
/**
** float vector arithmetic
**/
/** vector float add */
extern void
ppc_vaddfp(struct ppc_function *p,uint vD, uint vA, uint vB);
/** vector float substract */
extern void
ppc_vsubfp(struct ppc_function *p, uint vD, uint vA, uint vB);
/** vector float min */
extern void
ppc_vminfp(struct ppc_function *p, uint vD, uint vA, uint vB);
/** vector float max */
extern void
ppc_vmaxfp(struct ppc_function *p, uint vD, uint vA, uint vB);
/** vector float mult add: vD = vA * vB + vC */
extern void
ppc_vmaddfp(struct ppc_function *p, uint vD, uint vA, uint vB, uint vC);
/** vector float negative mult subtract: vD = vA - vB * vC */
extern void
ppc_vnmsubfp(struct ppc_function *p, uint vD, uint vA, uint vB, uint vC);
/** vector float compare greater than */
extern void
ppc_vcmpgtfpx(struct ppc_function *p, uint vD, uint vA, uint vB);
/** vector float compare greater than or equal to */
extern void
ppc_vcmpgefpx(struct ppc_function *p, uint vD, uint vA, uint vB);
/** vector float compare equal */
extern void
ppc_vcmpeqfpx(struct ppc_function *p, uint vD, uint vA, uint vB);
/** vector float 2^x */
extern void
ppc_vexptefp(struct ppc_function *p, uint vD, uint vB);
/** vector float log2(x) */
extern void
ppc_vlogefp(struct ppc_function *p, uint vD, uint vB);
/** vector float reciprocol */
extern void
ppc_vrefp(struct ppc_function *p, uint vD, uint vB);
/** vector float reciprocol sqrt estimate */
extern void
ppc_vrsqrtefp(struct ppc_function *p, uint vD, uint vB);
/** vector float round to negative infinity */
extern void
ppc_vrfim(struct ppc_function *p, uint vD, uint vB);
/** vector float round to positive infinity */
extern void
ppc_vrfip(struct ppc_function *p, uint vD, uint vB);
/** vector float round to nearest int */
extern void
ppc_vrfin(struct ppc_function *p, uint vD, uint vB);
/** vector float round to int toward zero */
extern void
ppc_vrfiz(struct ppc_function *p, uint vD, uint vB);
/** vector store: store vR at mem[vA+vB] */
extern void
ppc_stvx(struct ppc_function *p, uint vR, uint vA, uint vB);
/** vector load: vR = mem[vA+vB] */
extern void
ppc_lvx(struct ppc_function *p, uint vR, uint vA, uint vB);
/** load vector element word: vR = mem_word[vA+vB] */
extern void
ppc_lvewx(struct ppc_function *p, uint vR, uint vA, uint vB);
/**
** vector bitwise operations
**/
/** vector and */
extern void
ppc_vand(struct ppc_function *p, uint vD, uint vA, uint vB);
/** vector and complement */
extern void
ppc_vandc(struct ppc_function *p, uint vD, uint vA, uint vB);
/** vector or */
extern void
ppc_vor(struct ppc_function *p, uint vD, uint vA, uint vB);
/** vector nor */
extern void
ppc_vnor(struct ppc_function *p, uint vD, uint vA, uint vB);
/** vector xor */
extern void
ppc_vxor(struct ppc_function *p, uint vD, uint vA, uint vB);
/** Pseudo-instruction: vector move */
extern void
ppc_vmove(struct ppc_function *p, uint vD, uint vA);
/** Set vector register to {0,0,0,0} */
extern void
ppc_vzero(struct ppc_function *p, uint vr);
/**
** Vector shuffle / select / splat / etc
**/
/** vector permute */
extern void
ppc_vperm(struct ppc_function *p, uint vD, uint vA, uint vB, uint vC);
/** vector select */
extern void
ppc_vsel(struct ppc_function *p, uint vD, uint vA, uint vB, uint vC);
/** vector splat byte */
extern void
ppc_vspltb(struct ppc_function *p, uint vD, uint vB, uint imm);
/** vector splat half word */
extern void
ppc_vsplthw(struct ppc_function *p, uint vD, uint vB, uint imm);
/** vector splat word */
extern void
ppc_vspltw(struct ppc_function *p, uint vD, uint vB, uint imm);
/** vector splat signed immediate word */
extern void
ppc_vspltisw(struct ppc_function *p, uint vD, int imm);
/** vector shift left word: vD[word] = vA[word] << (vB[word] & 0x1f) */
extern void
ppc_vslw(struct ppc_function *p, uint vD, uint vA, uint vB);
/**
** scalar arithmetic
**/
extern void
ppc_add(struct ppc_function *p, uint rt, uint ra, uint rb);
extern void
ppc_addi(struct ppc_function *p, uint rt, uint ra, int imm);
extern void
ppc_and(struct ppc_function *p, uint rt, uint ra, uint rb);
extern void
ppc_andi(struct ppc_function *p, uint rt, uint ra, int imm);
extern void
ppc_or(struct ppc_function *p, uint rt, uint ra, uint rb);
extern void
ppc_ori(struct ppc_function *p, uint rt, uint ra, int imm);
extern void
ppc_xor(struct ppc_function *p, uint rt, uint ra, uint rb);
extern void
ppc_xori(struct ppc_function *p, uint rt, uint ra, int imm);
extern void
ppc_mr(struct ppc_function *p, uint rt, uint ra);
extern void
ppc_li(struct ppc_function *p, uint rt, int imm);
extern void
ppc_lis(struct ppc_function *p, uint rt, int imm);
extern void
ppc_load_int(struct ppc_function *p, uint rt, int imm);
/**
** scalar load/store
**/
extern void
ppc_stwu(struct ppc_function *p, uint rs, uint ra, int d);
extern void
ppc_stw(struct ppc_function *p, uint rs, uint ra, int d);
extern void
ppc_lwz(struct ppc_function *p, uint rs, uint ra, int d);
/**
** Float (non-vector) arithmetic
**/
extern void
ppc_fadd(struct ppc_function *p, uint frt, uint fra, uint frb);
extern void
ppc_fsub(struct ppc_function *p, uint frt, uint fra, uint frb);
extern void
ppc_fctiwz(struct ppc_function *p, uint rt, uint ra);
extern void
ppc_stfs(struct ppc_function *p, uint frs, uint ra, int offset);
extern void
ppc_stfiwx(struct ppc_function *p, uint frs, uint ra, uint rb);
/**
** branch instructions
**/
extern void
ppc_blr(struct ppc_function *p);
void
ppc_bclr(struct ppc_function *p, uint condOp, uint branchHint, uint condReg);
extern void
ppc_return(struct ppc_function *p);
#endif /* RTASM_PPC_H */
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