+++ /dev/null
-/* -*- asm -*- */
-/*
- * Copyright 2008 Free Software Foundation, Inc.
- *
- * This file is part of GNU Radio
- *
- * GNU Radio 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 3, or (at your option)
- * any later version.
- *
- * GNU Radio 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, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef INCLUDED_GC_SPU_MACS_H
-#define INCLUDED_GC_SPU_MACS_H
-
-/*
- * This file contains a set of macros that are generally useful when
- * coding in SPU assembler
- *
- * Note that the multi-instruction macros in here may overwrite
- * registers 77, 78, and 79 without warning.
- */
-
-/*
- * defines for all registers
- */
-#define r0 $0
-#define r1 $1
-#define r2 $2
-#define r3 $3
-#define r4 $4
-#define r5 $5
-#define r6 $6
-#define r7 $7
-#define r8 $8
-#define r9 $9
-#define r10 $10
-#define r11 $11
-#define r12 $12
-#define r13 $13
-#define r14 $14
-#define r15 $15
-#define r16 $16
-#define r17 $17
-#define r18 $18
-#define r19 $19
-#define r20 $20
-#define r21 $21
-#define r22 $22
-#define r23 $23
-#define r24 $24
-#define r25 $25
-#define r26 $26
-#define r27 $27
-#define r28 $28
-#define r29 $29
-#define r30 $30
-#define r31 $31
-#define r32 $32
-#define r33 $33
-#define r34 $34
-#define r35 $35
-#define r36 $36
-#define r37 $37
-#define r38 $38
-#define r39 $39
-#define r40 $40
-#define r41 $41
-#define r42 $42
-#define r43 $43
-#define r44 $44
-#define r45 $45
-#define r46 $46
-#define r47 $47
-#define r48 $48
-#define r49 $49
-#define r50 $50
-#define r51 $51
-#define r52 $52
-#define r53 $53
-#define r54 $54
-#define r55 $55
-#define r56 $56
-#define r57 $57
-#define r58 $58
-#define r59 $59
-#define r60 $60
-#define r61 $61
-#define r62 $62
-#define r63 $63
-#define r64 $64
-#define r65 $65
-#define r66 $66
-#define r67 $67
-#define r68 $68
-#define r69 $69
-#define r70 $70
-#define r71 $71
-#define r72 $72
-#define r73 $73
-#define r74 $74
-#define r75 $75
-#define r76 $76
-#define r77 $77
-#define r78 $78
-#define r79 $79
-#define r80 $80
-#define r81 $81
-#define r82 $82
-#define r83 $83
-#define r84 $84
-#define r85 $85
-#define r86 $86
-#define r87 $87
-#define r88 $88
-#define r89 $89
-#define r90 $90
-#define r91 $91
-#define r92 $92
-#define r93 $93
-#define r94 $94
-#define r95 $95
-#define r96 $96
-#define r97 $97
-#define r98 $98
-#define r99 $99
-#define r100 $100
-#define r101 $101
-#define r102 $102
-#define r103 $103
-#define r104 $104
-#define r105 $105
-#define r106 $106
-#define r107 $107
-#define r108 $108
-#define r109 $109
-#define r110 $110
-#define r111 $111
-#define r112 $112
-#define r113 $113
-#define r114 $114
-#define r115 $115
-#define r116 $116
-#define r117 $117
-#define r118 $118
-#define r119 $119
-#define r120 $120
-#define r121 $121
-#define r122 $122
-#define r123 $123
-#define r124 $124
-#define r125 $125
-#define r126 $126
-#define r127 $127
-
-
-#define lr r0 // link register
-#define sp r1 // stack pointer
- // r2 is environment pointer for langs that need it (ALGOL)
-
-#define retval r3 // return values are passed in regs starting at r3
-
-#define arg1 r3 // args are passed in regs starting at r3
-#define arg2 r4
-#define arg3 r5
-#define arg4 r6
-#define arg5 r7
-#define arg6 r8
-#define arg7 r9
-#define arg8 r10
-#define arg9 r11
-#define arg10 r12
-
-// r3 - r74 are volatile (caller saves)
-// r74 - r79 are volatile (scratch regs possibly destroyed by fct prolog/epilog)
-// r80 - r127 are non-volatile (caller-saves)
-
-// scratch registers reserved for use by the macros in this file.
-
-#define _gc_t0 r79
-#define _gc_t1 r78
-#define _gc_t2 r77
-
-/*
- * ----------------------------------------------------------------
- * pseudo ops
- * ----------------------------------------------------------------
- */
-#define PROC_ENTRY(name) \
- .text; \
- .p2align 4; \
- .global name; \
- .type name, @function; \
-name:
-
-/*
- * ----------------------------------------------------------------
- * aliases for common operations
- * ----------------------------------------------------------------
- */
-
-// Move register (even pipe, 2 cycles)
-#define MR(rt, ra) or rt, ra, ra;
-
-// Move register (odd pipe, 4 cycles)
-#define LMR(rt, ra) rotqbyi rt, ra, 0;
-
-// return
-#define RETURN() bi lr;
-
-// hint for a return
-#define HINT_RETURN(ret_label) hbr ret_label, lr;
-
-// return if zero
-#define BRZ_RETURN(rt) biz rt, lr;
-
-// return if not zero
-#define BRNZ_RETURN(rt) binz rt, lr;
-
-// return if halfword zero
-#define BRHZ_RETURN(rt) bihz rt, lr;
-
-// return if halfword not zero
-#define BRHNZ_RETURN(rt) bihnz rt, lr;
-
-
-/*
- * ----------------------------------------------------------------
- * modulo like things for constant moduli that are powers of 2
- * ----------------------------------------------------------------
- */
-
-// rt = ra & (pow2 - 1)
-#define MODULO(rt, ra, pow2) \
- andi rt, ra, (pow2)-1;
-
-// rt = pow2 - (ra & (pow2 - 1))
-#define MODULO_NEG(rt, ra, pow2) \
- andi rt, ra, (pow2)-1; \
- sfi rt, rt, (pow2);
-
-// rt = ra & -(pow2)
-#define ROUND_DOWN(rt, ra, pow2) \
- andi rt, ra, -(pow2);
-
-// rt = (ra + (pow2 - 1)) & -(pow2)
-#define ROUND_UP(rt, ra, pow2) \
- ai rt, ra, (pow2)-1; \
- andi rt, rt, -(pow2);
-
-/*
- * ----------------------------------------------------------------
- * Splat - replicate a particular slot into all slots
- * Altivec analogs...
- * ----------------------------------------------------------------
- */
-
-// replicate byte from slot s [0,15]
-#define VSPLTB(rt, ra, s) \
- ilh _gc_t0, (s)*0x0101; \
- shufb rt, ra, ra, _gc_t0;
-
-// replicate halfword from slot s [0,7]
-#define VSPLTH(rt, ra, s) \
- ilh _gc_t0, 2*(s)*0x0101 + 0x0001; \
- shufb rt, ra, ra, _gc_t0;
-
-// replicate word from slot s [0,3]
-#define VSPLTW(rt, ra, s) \
- iluh _gc_t0, 4*(s)*0x0101 + 0x0001; \
- iohl _gc_t0, 4*(s)*0x0101 + 0x0203; \
- shufb rt, ra, ra, _gc_t0;
-
-// replicate double from slot s [0,1]
-#define VSPLTD(rt, ra, s) \
- /* sp is always 16-byte aligned */ \
- cdd _gc_t0, 8(sp); /* 0x10111213 14151617 00010203 04050607 */ \
- rotqbyi rt, ra, ra, (s) << 3; /* rotate double into preferred slot */ \
- shufb rt, rt, rt, _gc_t0;
-
-/*
- * ----------------------------------------------------------------
- * lots of min/max variations...
- *
- * On a slot by slot basis, compute the min or max
- *
- * U - unsigned, else signed
- * B,H,{} - byte, halfword, word
- * F float
- * ----------------------------------------------------------------
- */
-
-#define MIN_SELB(rt, ra, rb, rc) selb rt, ra, rb, rc;
-#define MAX_SELB(rt, ra, rb, rc) selb rt, rb, ra, rc;
-
- // words
-
-#define MIN(rt, ra, rb) \
- cgt _gc_t0, ra, rb; \
- MIN_SELB(rt, ra, rb, _gc_t0)
-
-#define MAX(rt, ra, rb) \
- cgt _gc_t0, ra, rb; \
- MAX_SELB(rt, ra, rb, _gc_t0)
-
-#define UMIN(rt, ra, rb) \
- clgt _gc_t0, ra, rb; \
- MIN_SELB(rt, ra, rb, _gc_t0)
-
-#define UMAX(rt, ra, rb) \
- clgt _gc_t0, ra, rb; \
- MAX_SELB(rt, ra, rb, _gc_t0)
-
- // bytes
-
-#define MINB(rt, ra, rb) \
- cgtb _gc_t0, ra, rb; \
- MIN_SELB(rt, ra, rb, _gc_t0)
-
-#define MAXB(rt, ra, rb) \
- cgtb _gc_t0, ra, rb; \
- MAX_SELB(rt, ra, rb, _gc_t0)
-
-#define UMINB(rt, ra, rb) \
- clgtb _gc_t0, ra, rb; \
- MIN_SELB(rt, ra, rb, _gc_t0)
-
-#define UMAXB(rt, ra, rb) \
- clgtb _gc_t0, ra, rb; \
- MAX_SELB(rt, ra, rb, _gc_t0)
-
- // halfwords
-
-#define MINH(rt, ra, rb) \
- cgth _gc_t0, ra, rb; \
- MIN_SELB(rt, ra, rb, _gc_t0)
-
-#define MAXH(rt, ra, rb) \
- cgth _gc_t0, ra, rb; \
- MAX_SELB(rt, ra, rb, _gc_t0)
-
-#define UMINH(rt, ra, rb) \
- clgth _gc_t0, ra, rb; \
- MIN_SELB(rt, ra, rb, _gc_t0)
-
-#define UMAXH(rt, ra, rb) \
- clgth _gc_t0, ra, rb; \
- MAX_SELB(rt, ra, rb, _gc_t0)
-
- // floats
-
-#define FMIN(rt, ra, rb) \
- fcgt _gc_t0, ra, rb; \
- MIN_SELB(rt, ra, rb, _gc_t0)
-
-#define FMAX(rt, ra, rb) \
- fcgt _gc_t0, ra, rb; \
- MAX_SELB(rt, ra, rb, _gc_t0)
-
-// Ignoring the sign, select the values with the minimum magnitude
-#define FMINMAG(rt, ra, rb) \
- fcmgt _gc_t0, ra, rb; \
- MIN_SELB(rt, ra, rb, _gc_t0)
-
-// Ignoring the sign, select the values with the maximum magnitude
-#define FMAXMAG(rt, ra, rb) \
- fcmgt _gc_t0, ra, rb; \
- MAX_SELB(rt, ra, rb, _gc_t0)
-
-
-#endif /* INCLUDED_GC_SPU_MACS_H */
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