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/*
* (C) Copyright IBM Corporation 2008
* 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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, 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 (including the next
* paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* AUTHORS, COPYRIGHT HOLDERS, AND/OR THEIR SUPPLIERS 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.
*/
/**
* \file
* Real-time assembly generation interface for Cell B.E. SPEs.
* For details, see /opt/cell/sdk/docs/arch/SPU_ISA_v1.2_27Jan2007_pub.pdf
*
* \author Ian Romanick <idr@us.ibm.com>
* \author Brian Paul
*/
#ifndef RTASM_PPC_SPE_H
#define RTASM_PPC_SPE_H
/** 4 bytes per instruction */
#define SPE_INST_SIZE 4
/** number of general-purpose SIMD registers */
#define SPE_NUM_REGS 128
/** Return Address register (aka $lr / Link Register) */
#define SPE_REG_RA 0
/** Stack Pointer register (aka $sp) */
#define SPE_REG_SP 1
struct spe_function
{
uint32_t *store; /**< instruction buffer */
uint num_inst;
uint max_inst;
/**
* The "set count" reflects the number of nested register sets
* are allowed. In the unlikely case that we exceed the set count,
* register allocation will start to be confused, which is critical
* enough that we check for it.
*/
unsigned char set_count;
/**
* Flags for used and unused registers. Each byte corresponds to a
* register; a 0 in that byte means that the register is available.
* A value of 1 means that the register was allocated in the current
* register set. Any other value N means that the register was allocated
* N register sets ago.
*
* \sa
* spe_allocate_register, spe_allocate_available_register,
* spe_allocate_register_set, spe_release_register_set, spe_release_register,
*/
unsigned char regs[SPE_NUM_REGS];
boolean print; /**< print/dump instructions as they're emitted? */
int indent; /**< number of spaces to indent */
};
extern void spe_init_func(struct spe_function *p, unsigned code_size);
extern void spe_release_func(struct spe_function *p);
extern unsigned spe_code_size(const struct spe_function *p);
extern int spe_allocate_available_register(struct spe_function *p);
extern int spe_allocate_register(struct spe_function *p, int reg);
extern void spe_release_register(struct spe_function *p, int reg);
extern void spe_allocate_register_set(struct spe_function *p);
extern void spe_release_register_set(struct spe_function *p);
extern unsigned
spe_get_registers_used(const struct spe_function *p, ubyte used[]);
extern void spe_print_code(struct spe_function *p, boolean enable);
extern void spe_indent(struct spe_function *p, int spaces);
extern void spe_comment(struct spe_function *p, int rel_indent, const char *s);
#endif /* RTASM_PPC_SPE_H */
#ifndef EMIT
#define EMIT(_name, _op) \
extern void _name (struct spe_function *p);
#define EMIT_(_name, _op) \
extern void _name (struct spe_function *p, unsigned rT);
#define EMIT_R(_name, _op) \
extern void _name (struct spe_function *p, unsigned rT, unsigned rA);
#define EMIT_RR(_name, _op) \
extern void _name (struct spe_function *p, unsigned rT, unsigned rA, \
unsigned rB);
#define EMIT_RRR(_name, _op) \
extern void _name (struct spe_function *p, unsigned rT, unsigned rA, \
unsigned rB, unsigned rC);
#define EMIT_RI7(_name, _op) \
extern void _name (struct spe_function *p, unsigned rT, unsigned rA, \
int imm);
#define EMIT_RI8(_name, _op, bias) \
extern void _name (struct spe_function *p, unsigned rT, unsigned rA, \
int imm);
#define EMIT_RI10(_name, _op) \
extern void _name (struct spe_function *p, unsigned rT, unsigned rA, \
int imm);
#define EMIT_RI10s(_name, _op) \
extern void _name (struct spe_function *p, unsigned rT, unsigned rA, \
int imm);
#define EMIT_RI16(_name, _op) \
extern void _name (struct spe_function *p, unsigned rT, int imm);
#define EMIT_RI18(_name, _op) \
extern void _name (struct spe_function *p, unsigned rT, int imm);
#define EMIT_I16(_name, _op) \
extern void _name (struct spe_function *p, int imm);
#define UNDEF_EMIT_MACROS
#endif /* EMIT */
/* Memory load / store instructions
*/
EMIT_RR (spe_lqx, 0x1c4)
EMIT_RI16(spe_lqa, 0x061)
EMIT_RI16(spe_lqr, 0x067)
EMIT_RR (spe_stqx, 0x144)
EMIT_RI16(spe_stqa, 0x041)
EMIT_RI16(spe_stqr, 0x047)
EMIT_RI7 (spe_cbd, 0x1f4)
EMIT_RR (spe_cbx, 0x1d4)
EMIT_RI7 (spe_chd, 0x1f5)
EMIT_RI7 (spe_chx, 0x1d5)
EMIT_RI7 (spe_cwd, 0x1f6)
EMIT_RI7 (spe_cwx, 0x1d6)
EMIT_RI7 (spe_cdd, 0x1f7)
EMIT_RI7 (spe_cdx, 0x1d7)
/* Constant formation instructions
*/
EMIT_RI16(spe_ilh, 0x083)
EMIT_RI16(spe_ilhu, 0x082)
EMIT_RI16(spe_il, 0x081)
EMIT_RI18(spe_ila, 0x021)
EMIT_RI16(spe_iohl, 0x0c1)
EMIT_RI16(spe_fsmbi, 0x065)
/* Integer and logical instructions
*/
EMIT_RR (spe_ah, 0x0c8)
EMIT_RI10(spe_ahi, 0x01d)
EMIT_RR (spe_a, 0x0c0)
EMIT_RI10s(spe_ai, 0x01c)
EMIT_RR (spe_sfh, 0x048)
EMIT_RI10(spe_sfhi, 0x00d)
EMIT_RR (spe_sf, 0x040)
EMIT_RI10(spe_sfi, 0x00c)
EMIT_RR (spe_addx, 0x340)
EMIT_RR (spe_cg, 0x0c2)
EMIT_RR (spe_cgx, 0x342)
EMIT_RR (spe_sfx, 0x341)
EMIT_RR (spe_bg, 0x042)
EMIT_RR (spe_bgx, 0x343)
EMIT_RR (spe_mpy, 0x3c4)
EMIT_RR (spe_mpyu, 0x3cc)
EMIT_RI10(spe_mpyi, 0x074)
EMIT_RI10(spe_mpyui, 0x075)
EMIT_RRR (spe_mpya, 0x00c)
EMIT_RR (spe_mpyh, 0x3c5)
EMIT_RR (spe_mpys, 0x3c7)
EMIT_RR (spe_mpyhh, 0x3c6)
EMIT_RR (spe_mpyhha, 0x346)
EMIT_RR (spe_mpyhhu, 0x3ce)
EMIT_RR (spe_mpyhhau, 0x34e)
EMIT_R (spe_clz, 0x2a5)
EMIT_R (spe_cntb, 0x2b4)
EMIT_R (spe_fsmb, 0x1b6)
EMIT_R (spe_fsmh, 0x1b5)
EMIT_R (spe_fsm, 0x1b4)
EMIT_R (spe_gbb, 0x1b2)
EMIT_R (spe_gbh, 0x1b1)
EMIT_R (spe_gb, 0x1b0)
EMIT_RR (spe_avgb, 0x0d3)
EMIT_RR (spe_absdb, 0x053)
EMIT_RR (spe_sumb, 0x253)
EMIT_R (spe_xsbh, 0x2b6)
EMIT_R (spe_xshw, 0x2ae)
EMIT_R (spe_xswd, 0x2a6)
EMIT_RR (spe_and, 0x0c1)
EMIT_RR (spe_andc, 0x2c1)
EMIT_RI10s(spe_andbi, 0x016)
EMIT_RI10s(spe_andhi, 0x015)
EMIT_RI10s(spe_andi, 0x014)
EMIT_RR (spe_or, 0x041)
EMIT_RR (spe_orc, 0x2c9)
EMIT_RI10s(spe_orbi, 0x006)
EMIT_RI10s(spe_orhi, 0x005)
EMIT_RI10s(spe_ori, 0x004)
EMIT_R (spe_orx, 0x1f0)
EMIT_RR (spe_xor, 0x241)
EMIT_RI10s(spe_xorbi, 0x046)
EMIT_RI10s(spe_xorhi, 0x045)
EMIT_RI10s(spe_xori, 0x044)
EMIT_RR (spe_nand, 0x0c9)
EMIT_RR (spe_nor, 0x049)
EMIT_RR (spe_eqv, 0x249)
EMIT_RRR (spe_selb, 0x008)
EMIT_RRR (spe_shufb, 0x00b)
/* Shift and rotate instructions
*/
EMIT_RR (spe_shlh, 0x05f)
EMIT_RI7 (spe_shlhi, 0x07f)
EMIT_RR (spe_shl, 0x05b)
EMIT_RI7 (spe_shli, 0x07b)
EMIT_RR (spe_shlqbi, 0x1db)
EMIT_RI7 (spe_shlqbii, 0x1fb)
EMIT_RR (spe_shlqby, 0x1df)
EMIT_RI7 (spe_shlqbyi, 0x1ff)
EMIT_RR (spe_shlqbybi, 0x1cf)
EMIT_RR (spe_roth, 0x05c)
EMIT_RI7 (spe_rothi, 0x07c)
EMIT_RR (spe_rot, 0x058)
EMIT_RI7 (spe_roti, 0x078)
EMIT_RR (spe_rotqby, 0x1dc)
EMIT_RI7 (spe_rotqbyi, 0x1fc)
EMIT_RR (spe_rotqbybi, 0x1cc)
EMIT_RR (spe_rotqbi, 0x1d8)
EMIT_RI7 (spe_rotqbii, 0x1f8)
EMIT_RR (spe_rothm, 0x05d)
EMIT_RI7 (spe_rothmi, 0x07d)
EMIT_RR (spe_rotm, 0x059)
EMIT_RI7 (spe_rotmi, 0x079)
EMIT_RR (spe_rotqmby, 0x1dd)
EMIT_RI7 (spe_rotqmbyi, 0x1fd)
EMIT_RR (spe_rotqmbybi, 0x1cd)
EMIT_RR (spe_rotqmbi, 0x1c9)
EMIT_RI7 (spe_rotqmbii, 0x1f9)
EMIT_RR (spe_rotmah, 0x05e)
EMIT_RI7 (spe_rotmahi, 0x07e)
EMIT_RR (spe_rotma, 0x05a)
EMIT_RI7 (spe_rotmai, 0x07a)
/* Compare, branch, and halt instructions
*/
EMIT_RR (spe_heq, 0x3d8)
EMIT_RI10(spe_heqi, 0x07f)
EMIT_RR (spe_hgt, 0x258)
EMIT_RI10(spe_hgti, 0x04f)
EMIT_RR (spe_hlgt, 0x2d8)
EMIT_RI10(spe_hlgti, 0x05f)
EMIT_RR (spe_ceqb, 0x3d0)
EMIT_RI10(spe_ceqbi, 0x07e)
EMIT_RR (spe_ceqh, 0x3c8)
EMIT_RI10(spe_ceqhi, 0x07d)
EMIT_RR (spe_ceq, 0x3c0)
EMIT_RI10(spe_ceqi, 0x07c)
EMIT_RR (spe_cgtb, 0x250)
EMIT_RI10(spe_cgtbi, 0x04e)
EMIT_RR (spe_cgth, 0x248)
EMIT_RI10(spe_cgthi, 0x04d)
EMIT_RR (spe_cgt, 0x240)
EMIT_RI10(spe_cgti, 0x04c)
EMIT_RR (spe_clgtb, 0x2d0)
EMIT_RI10(spe_clgtbi, 0x05e)
EMIT_RR (spe_clgth, 0x2c8)
EMIT_RI10(spe_clgthi, 0x05d)
EMIT_RR (spe_clgt, 0x2c0)
EMIT_RI10(spe_clgti, 0x05c)
EMIT_I16 (spe_br, 0x064)
EMIT_I16 (spe_bra, 0x060)
EMIT_RI16(spe_brsl, 0x066)
EMIT_RI16(spe_brasl, 0x062)
EMIT_RI16(spe_brnz, 0x042)
EMIT_RI16(spe_brz, 0x040)
EMIT_RI16(spe_brhnz, 0x046)
EMIT_RI16(spe_brhz, 0x044)
/* Control instructions
*/
EMIT (spe_lnop, 0x001)
extern void
spe_lqd(struct spe_function *p, unsigned rT, unsigned rA, int offset);
extern void
spe_stqd(struct spe_function *p, unsigned rT, unsigned rA, int offset);
extern void spe_bi(struct spe_function *p, unsigned rA, int d, int e);
extern void spe_iret(struct spe_function *p, unsigned rA, int d, int e);
extern void spe_bisled(struct spe_function *p, unsigned rT, unsigned rA,
int d, int e);
extern void spe_bisl(struct spe_function *p, unsigned rT, unsigned rA,
int d, int e);
extern void spe_biz(struct spe_function *p, unsigned rT, unsigned rA,
int d, int e);
extern void spe_binz(struct spe_function *p, unsigned rT, unsigned rA,
int d, int e);
extern void spe_bihz(struct spe_function *p, unsigned rT, unsigned rA,
int d, int e);
extern void spe_bihnz(struct spe_function *p, unsigned rT, unsigned rA,
int d, int e);
/** Load/splat immediate float into rT. */
extern void
spe_load_float(struct spe_function *p, unsigned rT, float x);
/** Load/splat immediate int into rT. */
extern void
spe_load_int(struct spe_function *p, unsigned rT, int i);
/** Load/splat immediate unsigned int into rT. */
extern void
spe_load_uint(struct spe_function *p, unsigned rT, unsigned int ui);
/** And immediate value into rT. */
extern void
spe_and_uint(struct spe_function *p, unsigned rT, unsigned rA, unsigned int ui);
/** Xor immediate value into rT. */
extern void
spe_xor_uint(struct spe_function *p, unsigned rT, unsigned rA, unsigned int ui);
/** Compare equal with immediate value. */
extern void
spe_compare_equal_uint(struct spe_function *p, unsigned rT, unsigned rA, unsigned int ui);
/** Compare greater with immediate value. */
extern void
spe_compare_greater_uint(struct spe_function *p, unsigned rT, unsigned rA, unsigned int ui);
/** Replicate word 0 of rA across rT. */
extern void
spe_splat(struct spe_function *p, unsigned rT, unsigned rA);
/** rT = complement_all_bits(rA). */
extern void
spe_complement(struct spe_function *p, unsigned rT, unsigned rA);
/** rT = rA. */
extern void
spe_move(struct spe_function *p, unsigned rT, unsigned rA);
/** rT = {0,0,0,0}. */
extern void
spe_zero(struct spe_function *p, unsigned rT);
/** rT = splat(rA, word) */
extern void
spe_splat_word(struct spe_function *p, unsigned rT, unsigned rA, int word);
/** rT = float min(rA, rB) */
extern void
spe_float_min(struct spe_function *p, unsigned rT, unsigned rA, unsigned rB);
/** rT = float max(rA, rB) */
extern void
spe_float_max(struct spe_function *p, unsigned rT, unsigned rA, unsigned rB);
/* Floating-point instructions
*/
EMIT_RR (spe_fa, 0x2c4)
EMIT_RR (spe_dfa, 0x2cc)
EMIT_RR (spe_fs, 0x2c5)
EMIT_RR (spe_dfs, 0x2cd)
EMIT_RR (spe_fm, 0x2c6)
EMIT_RR (spe_dfm, 0x2ce)
EMIT_RRR (spe_fma, 0x00e)
EMIT_RR (spe_dfma, 0x35c)
EMIT_RRR (spe_fnms, 0x00d)
EMIT_RR (spe_dfnms, 0x35e)
EMIT_RRR (spe_fms, 0x00f)
EMIT_RR (spe_dfms, 0x35d)
EMIT_RR (spe_dfnma, 0x35f)
EMIT_R (spe_frest, 0x1b8)
EMIT_R (spe_frsqest, 0x1b9)
EMIT_RR (spe_fi, 0x3d4)
EMIT_RI8 (spe_csflt, 0x1da, 155)
EMIT_RI8 (spe_cflts, 0x1d8, 173)
EMIT_RI8 (spe_cuflt, 0x1db, 155)
EMIT_RI8 (spe_cfltu, 0x1d9, 173)
EMIT_R (spe_frds, 0x3b9)
EMIT_R (spe_fesd, 0x3b8)
EMIT_RR (spe_dfceq, 0x3c3)
EMIT_RR (spe_dfcmeq, 0x3cb)
EMIT_RR (spe_dfcgt, 0x2c3)
EMIT_RR (spe_dfcmgt, 0x2cb)
EMIT_RI7 (spe_dftsv, 0x3bf)
EMIT_RR (spe_fceq, 0x3c2)
EMIT_RR (spe_fcmeq, 0x3ca)
EMIT_RR (spe_fcgt, 0x2c2)
EMIT_RR (spe_fcmgt, 0x2ca)
EMIT_R (spe_fscrwr, 0x3ba)
EMIT_ (spe_fscrrd, 0x398)
/* Channel instructions
*/
EMIT_R (spe_rdch, 0x00d)
EMIT_R (spe_rdchcnt, 0x00f)
EMIT_R (spe_wrch, 0x10d)
#ifdef UNDEF_EMIT_MACROS
#undef EMIT
#undef EMIT_
#undef EMIT_R
#undef EMIT_RR
#undef EMIT_RRR
#undef EMIT_RI7
#undef EMIT_RI8
#undef EMIT_RI10
#undef EMIT_RI10s
#undef EMIT_RI16
#undef EMIT_RI18
#undef EMIT_I16
#undef UNDEF_EMIT_MACROS
#endif /* EMIT_ */
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