summaryrefslogtreecommitdiff
path: root/src/gallium/auxiliary/rtasm/rtasm_ppc.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium/auxiliary/rtasm/rtasm_ppc.c')
-rw-r--r--src/gallium/auxiliary/rtasm/rtasm_ppc.c1077
1 files changed, 1077 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/rtasm/rtasm_ppc.c b/src/gallium/auxiliary/rtasm/rtasm_ppc.c
new file mode 100644
index 0000000000..ef4b306cb6
--- /dev/null
+++ b/src/gallium/auxiliary/rtasm/rtasm_ppc.c
@@ -0,0 +1,1077 @@
+/**************************************************************************
+ *
+ * Copyright (C) 2008 Tungsten Graphics, Inc. All Rights Reserved.
+ * Copyright (C) 2009 VMware, 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.
+ * For reference, see http://www.power.org/resources/reading/PowerISA_V2.05.pdf
+ * ABI info: http://www.cs.utsa.edu/~whaley/teach/cs6463FHPO/LEC/lec12_ho.pdf
+ *
+ * Other PPC refs:
+ * http://www-01.ibm.com/chips/techlib/techlib.nsf/techdocs/852569B20050FF778525699600719DF2
+ * http://www.ibm.com/developerworks/eserver/library/es-archguide-v2.html
+ * http://www.freescale.com/files/product/doc/MPCFPE32B.pdf
+ *
+ * \author Brian Paul
+ */
+
+
+#include <stdio.h>
+#include "util/u_memory.h"
+#include "util/u_debug.h"
+#include "rtasm_execmem.h"
+#include "rtasm_ppc.h"
+
+
+void
+ppc_init_func(struct ppc_function *p)
+{
+ uint i;
+
+ memset(p, 0, sizeof(*p));
+
+ p->num_inst = 0;
+ p->max_inst = 100; /* first guess at buffer size */
+ p->store = rtasm_exec_malloc(p->max_inst * PPC_INST_SIZE);
+ p->reg_used = 0x0;
+ p->fp_used = 0x0;
+ p->vec_used = 0x0;
+
+ p->print = FALSE;
+ p->indent = 0;
+
+ /* only allow using gp registers 3..12 for now */
+ for (i = 0; i < 3; i++)
+ ppc_reserve_register(p, i);
+ for (i = 12; i < PPC_NUM_REGS; i++)
+ ppc_reserve_register(p, i);
+}
+
+
+void
+ppc_release_func(struct ppc_function *p)
+{
+ assert(p->num_inst <= p->max_inst);
+ if (p->store != NULL) {
+ rtasm_exec_free(p->store);
+ }
+ p->store = NULL;
+}
+
+
+uint
+ppc_num_instructions(const struct ppc_function *p)
+{
+ return p->num_inst;
+}
+
+
+void (*ppc_get_func(struct ppc_function *p))(void)
+{
+#if 0
+ DUMP_END();
+ if (DISASSEM && p->store)
+ debug_printf("disassemble %p %p\n", p->store, p->csr);
+
+ if (p->store == p->error_overflow)
+ return (void (*)(void)) NULL;
+ else
+#endif
+ return (void (*)(void)) p->store;
+}
+
+
+void
+ppc_dump_func(const struct ppc_function *p)
+{
+ uint i;
+ for (i = 0; i < p->num_inst; i++) {
+ debug_printf("%3u: 0x%08x\n", i, p->store[i]);
+ }
+}
+
+
+void
+ppc_print_code(struct ppc_function *p, boolean enable)
+{
+ p->print = enable;
+}
+
+
+void
+ppc_indent(struct ppc_function *p, int spaces)
+{
+ p->indent += spaces;
+}
+
+
+static void
+indent(const struct ppc_function *p)
+{
+ int i;
+ for (i = 0; i < p->indent; i++) {
+ putchar(' ');
+ }
+}
+
+
+void
+ppc_comment(struct ppc_function *p, int rel_indent, const char *s)
+{
+ if (p->print) {
+ p->indent += rel_indent;
+ indent(p);
+ p->indent -= rel_indent;
+ printf("# %s\n", s);
+ }
+}
+
+
+/**
+ * Mark a register as being unavailable.
+ */
+int
+ppc_reserve_register(struct ppc_function *p, int reg)
+{
+ assert(reg < PPC_NUM_REGS);
+ p->reg_used |= (1 << reg);
+ return reg;
+}
+
+
+/**
+ * Allocate a general purpose register.
+ * \return register index or -1 if none left.
+ */
+int
+ppc_allocate_register(struct ppc_function *p)
+{
+ unsigned i;
+ for (i = 0; i < PPC_NUM_REGS; i++) {
+ const uint32_t mask = 1 << i;
+ if ((p->reg_used & mask) == 0) {
+ p->reg_used |= mask;
+ return i;
+ }
+ }
+ printf("OUT OF PPC registers!\n");
+ return -1;
+}
+
+
+/**
+ * Mark the given general purpose register as "unallocated".
+ */
+void
+ppc_release_register(struct ppc_function *p, int reg)
+{
+ assert(reg < PPC_NUM_REGS);
+ assert(p->reg_used & (1 << reg));
+ p->reg_used &= ~(1 << reg);
+}
+
+
+/**
+ * Allocate a floating point register.
+ * \return register index or -1 if none left.
+ */
+int
+ppc_allocate_fp_register(struct ppc_function *p)
+{
+ unsigned i;
+ for (i = 0; i < PPC_NUM_FP_REGS; i++) {
+ const uint32_t mask = 1 << i;
+ if ((p->fp_used & mask) == 0) {
+ p->fp_used |= mask;
+ return i;
+ }
+ }
+ printf("OUT OF PPC FP registers!\n");
+ return -1;
+}
+
+
+/**
+ * Mark the given floating point register as "unallocated".
+ */
+void
+ppc_release_fp_register(struct ppc_function *p, int reg)
+{
+ assert(reg < PPC_NUM_FP_REGS);
+ assert(p->fp_used & (1 << reg));
+ p->fp_used &= ~(1 << reg);
+}
+
+
+/**
+ * Allocate a vector register.
+ * \return register index or -1 if none left.
+ */
+int
+ppc_allocate_vec_register(struct ppc_function *p)
+{
+ unsigned i;
+ for (i = 0; i < PPC_NUM_VEC_REGS; i++) {
+ const uint32_t mask = 1 << i;
+ if ((p->vec_used & mask) == 0) {
+ p->vec_used |= mask;
+ return i;
+ }
+ }
+ printf("OUT OF PPC VEC registers!\n");
+ return -1;
+}
+
+
+/**
+ * Mark the given vector register as "unallocated".
+ */
+void
+ppc_release_vec_register(struct ppc_function *p, int reg)
+{
+ assert(reg < PPC_NUM_VEC_REGS);
+ assert(p->vec_used & (1 << reg));
+ p->vec_used &= ~(1 << reg);
+}
+
+
+/**
+ * Append instruction to instruction buffer. Grow buffer if out of room.
+ */
+static void
+emit_instruction(struct ppc_function *p, uint32_t inst_bits)
+{
+ if (!p->store)
+ return; /* out of memory, drop the instruction */
+
+ if (p->num_inst == p->max_inst) {
+ /* allocate larger buffer */
+ uint32_t *newbuf;
+ p->max_inst *= 2; /* 2x larger */
+ newbuf = rtasm_exec_malloc(p->max_inst * PPC_INST_SIZE);
+ if (newbuf) {
+ memcpy(newbuf, p->store, p->num_inst * PPC_INST_SIZE);
+ }
+ rtasm_exec_free(p->store);
+ p->store = newbuf;
+ if (!p->store) {
+ /* out of memory */
+ p->num_inst = 0;
+ return;
+ }
+ }
+
+ p->store[p->num_inst++] = inst_bits;
+}
+
+
+union vx_inst {
+ uint32_t bits;
+ struct {
+ unsigned op:6;
+ unsigned vD:5;
+ unsigned vA:5;
+ unsigned vB:5;
+ unsigned op2:11;
+ } inst;
+};
+
+static INLINE void
+emit_vx(struct ppc_function *p, uint op2, uint vD, uint vA, uint vB,
+ const char *format, boolean transpose)
+{
+ union vx_inst inst;
+ inst.inst.op = 4;
+ inst.inst.vD = vD;
+ inst.inst.vA = vA;
+ inst.inst.vB = vB;
+ inst.inst.op2 = op2;
+ emit_instruction(p, inst.bits);
+ if (p->print) {
+ indent(p);
+ if (transpose)
+ printf(format, vD, vB, vA);
+ else
+ printf(format, vD, vA, vB);
+ }
+}
+
+
+union vxr_inst {
+ uint32_t bits;
+ struct {
+ unsigned op:6;
+ unsigned vD:5;
+ unsigned vA:5;
+ unsigned vB:5;
+ unsigned rC:1;
+ unsigned op2:10;
+ } inst;
+};
+
+static INLINE void
+emit_vxr(struct ppc_function *p, uint op2, uint vD, uint vA, uint vB,
+ const char *format)
+{
+ union vxr_inst inst;
+ inst.inst.op = 4;
+ inst.inst.vD = vD;
+ inst.inst.vA = vA;
+ inst.inst.vB = vB;
+ inst.inst.rC = 0;
+ inst.inst.op2 = op2;
+ emit_instruction(p, inst.bits);
+ if (p->print) {
+ indent(p);
+ printf(format, vD, vA, vB);
+ }
+}
+
+
+union va_inst {
+ uint32_t bits;
+ struct {
+ unsigned op:6;
+ unsigned vD:5;
+ unsigned vA:5;
+ unsigned vB:5;
+ unsigned vC:5;
+ unsigned op2:6;
+ } inst;
+};
+
+static INLINE void
+emit_va(struct ppc_function *p, uint op2, uint vD, uint vA, uint vB, uint vC,
+ const char *format)
+{
+ union va_inst inst;
+ inst.inst.op = 4;
+ inst.inst.vD = vD;
+ inst.inst.vA = vA;
+ inst.inst.vB = vB;
+ inst.inst.vC = vC;
+ inst.inst.op2 = op2;
+ emit_instruction(p, inst.bits);
+ if (p->print) {
+ indent(p);
+ printf(format, vD, vA, vB, vC);
+ }
+}
+
+
+union i_inst {
+ uint32_t bits;
+ struct {
+ unsigned op:6;
+ unsigned li:24;
+ unsigned aa:1;
+ unsigned lk:1;
+ } inst;
+};
+
+static INLINE void
+emit_i(struct ppc_function *p, uint op, uint li, uint aa, uint lk)
+{
+ union i_inst inst;
+ inst.inst.op = op;
+ inst.inst.li = li;
+ inst.inst.aa = aa;
+ inst.inst.lk = lk;
+ emit_instruction(p, inst.bits);
+}
+
+
+union xl_inst {
+ uint32_t bits;
+ struct {
+ unsigned op:6;
+ unsigned bo:5;
+ unsigned bi:5;
+ unsigned unused:3;
+ unsigned bh:2;
+ unsigned op2:10;
+ unsigned lk:1;
+ } inst;
+};
+
+static INLINE void
+emit_xl(struct ppc_function *p, uint op, uint bo, uint bi, uint bh,
+ uint op2, uint lk)
+{
+ union xl_inst inst;
+ inst.inst.op = op;
+ inst.inst.bo = bo;
+ inst.inst.bi = bi;
+ inst.inst.unused = 0x0;
+ inst.inst.bh = bh;
+ inst.inst.op2 = op2;
+ inst.inst.lk = lk;
+ emit_instruction(p, inst.bits);
+}
+
+static INLINE void
+dump_xl(const char *name, uint inst)
+{
+ union xl_inst i;
+
+ i.bits = inst;
+ debug_printf("%s = 0x%08x\n", name, inst);
+ debug_printf(" op: %d 0x%x\n", i.inst.op, i.inst.op);
+ debug_printf(" bo: %d 0x%x\n", i.inst.bo, i.inst.bo);
+ debug_printf(" bi: %d 0x%x\n", i.inst.bi, i.inst.bi);
+ debug_printf(" unused: %d 0x%x\n", i.inst.unused, i.inst.unused);
+ debug_printf(" bh: %d 0x%x\n", i.inst.bh, i.inst.bh);
+ debug_printf(" op2: %d 0x%x\n", i.inst.op2, i.inst.op2);
+ debug_printf(" lk: %d 0x%x\n", i.inst.lk, i.inst.lk);
+}
+
+
+union x_inst {
+ uint32_t bits;
+ struct {
+ unsigned op:6;
+ unsigned vrs:5;
+ unsigned ra:5;
+ unsigned rb:5;
+ unsigned op2:10;
+ unsigned unused:1;
+ } inst;
+};
+
+static INLINE void
+emit_x(struct ppc_function *p, uint op, uint vrs, uint ra, uint rb, uint op2,
+ const char *format)
+{
+ union x_inst inst;
+ inst.inst.op = op;
+ inst.inst.vrs = vrs;
+ inst.inst.ra = ra;
+ inst.inst.rb = rb;
+ inst.inst.op2 = op2;
+ inst.inst.unused = 0x0;
+ emit_instruction(p, inst.bits);
+ if (p->print) {
+ indent(p);
+ printf(format, vrs, ra, rb);
+ }
+}
+
+
+union d_inst {
+ uint32_t bits;
+ struct {
+ unsigned op:6;
+ unsigned rt:5;
+ unsigned ra:5;
+ unsigned si:16;
+ } inst;
+};
+
+static INLINE void
+emit_d(struct ppc_function *p, uint op, uint rt, uint ra, int si,
+ const char *format, boolean transpose)
+{
+ union d_inst inst;
+ assert(si >= -32768);
+ assert(si <= 32767);
+ inst.inst.op = op;
+ inst.inst.rt = rt;
+ inst.inst.ra = ra;
+ inst.inst.si = (unsigned) (si & 0xffff);
+ emit_instruction(p, inst.bits);
+ if (p->print) {
+ indent(p);
+ if (transpose)
+ printf(format, rt, si, ra);
+ else
+ printf(format, rt, ra, si);
+ }
+}
+
+
+union a_inst {
+ uint32_t bits;
+ struct {
+ unsigned op:6;
+ unsigned frt:5;
+ unsigned fra:5;
+ unsigned frb:5;
+ unsigned unused:5;
+ unsigned op2:5;
+ unsigned rc:1;
+ } inst;
+};
+
+static INLINE void
+emit_a(struct ppc_function *p, uint op, uint frt, uint fra, uint frb, uint op2,
+ uint rc, const char *format)
+{
+ union a_inst inst;
+ inst.inst.op = op;
+ inst.inst.frt = frt;
+ inst.inst.fra = fra;
+ inst.inst.frb = frb;
+ inst.inst.unused = 0x0;
+ inst.inst.op2 = op2;
+ inst.inst.rc = rc;
+ emit_instruction(p, inst.bits);
+ if (p->print) {
+ indent(p);
+ printf(format, frt, fra, frb);
+ }
+}
+
+
+union xo_inst {
+ uint32_t bits;
+ struct {
+ unsigned op:6;
+ unsigned rt:5;
+ unsigned ra:5;
+ unsigned rb:5;
+ unsigned oe:1;
+ unsigned op2:9;
+ unsigned rc:1;
+ } inst;
+};
+
+static INLINE void
+emit_xo(struct ppc_function *p, uint op, uint rt, uint ra, uint rb, uint oe,
+ uint op2, uint rc, const char *format)
+{
+ union xo_inst inst;
+ inst.inst.op = op;
+ inst.inst.rt = rt;
+ inst.inst.ra = ra;
+ inst.inst.rb = rb;
+ inst.inst.oe = oe;
+ inst.inst.op2 = op2;
+ inst.inst.rc = rc;
+ emit_instruction(p, inst.bits);
+ if (p->print) {
+ indent(p);
+ printf(format, rt, ra, rb);
+ }
+}
+
+
+
+
+
+/**
+ ** float vector arithmetic
+ **/
+
+/** vector float add */
+void
+ppc_vaddfp(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vx(p, 10, vD, vA, vB, "vaddfp\t%u, v%u, v%u\n", FALSE);
+}
+
+/** vector float substract */
+void
+ppc_vsubfp(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vx(p, 74, vD, vA, vB, "vsubfp\tv%u, v%u, v%u\n", FALSE);
+}
+
+/** vector float min */
+void
+ppc_vminfp(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vx(p, 1098, vD, vA, vB, "vminfp\tv%u, v%u, v%u\n", FALSE);
+}
+
+/** vector float max */
+void
+ppc_vmaxfp(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vx(p, 1034, vD, vA, vB, "vmaxfp\tv%u, v%u, v%u\n", FALSE);
+}
+
+/** vector float mult add: vD = vA * vB + vC */
+void
+ppc_vmaddfp(struct ppc_function *p, uint vD, uint vA, uint vB, uint vC)
+{
+ /* note arg order */
+ emit_va(p, 46, vD, vA, vC, vB, "vmaddfp\tv%u, v%u, v%u, v%u\n");
+}
+
+/** vector float negative mult subtract: vD = vA - vB * vC */
+void
+ppc_vnmsubfp(struct ppc_function *p, uint vD, uint vA, uint vB, uint vC)
+{
+ /* note arg order */
+ emit_va(p, 47, vD, vB, vA, vC, "vnmsubfp\tv%u, v%u, v%u, v%u\n");
+}
+
+/** vector float compare greater than */
+void
+ppc_vcmpgtfpx(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vxr(p, 710, vD, vA, vB, "vcmpgtfpx\tv%u, v%u, v%u");
+}
+
+/** vector float compare greater than or equal to */
+void
+ppc_vcmpgefpx(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vxr(p, 454, vD, vA, vB, "vcmpgefpx\tv%u, v%u, v%u");
+}
+
+/** vector float compare equal */
+void
+ppc_vcmpeqfpx(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vxr(p, 198, vD, vA, vB, "vcmpeqfpx\tv%u, v%u, v%u");
+}
+
+/** vector float 2^x */
+void
+ppc_vexptefp(struct ppc_function *p, uint vD, uint vB)
+{
+ emit_vx(p, 394, vD, 0, vB, "vexptefp\tv%u, 0%u, v%u\n", FALSE);
+}
+
+/** vector float log2(x) */
+void
+ppc_vlogefp(struct ppc_function *p, uint vD, uint vB)
+{
+ emit_vx(p, 458, vD, 0, vB, "vlogefp\tv%u, 0%u, v%u\n", FALSE);
+}
+
+/** vector float reciprocol */
+void
+ppc_vrefp(struct ppc_function *p, uint vD, uint vB)
+{
+ emit_vx(p, 266, vD, 0, vB, "vrefp\tv%u, 0%u, v%u\n", FALSE);
+}
+
+/** vector float reciprocol sqrt estimate */
+void
+ppc_vrsqrtefp(struct ppc_function *p, uint vD, uint vB)
+{
+ emit_vx(p, 330, vD, 0, vB, "vrsqrtefp\tv%u, 0%u, v%u\n", FALSE);
+}
+
+/** vector float round to negative infinity */
+void
+ppc_vrfim(struct ppc_function *p, uint vD, uint vB)
+{
+ emit_vx(p, 714, vD, 0, vB, "vrfim\tv%u, 0%u, v%u\n", FALSE);
+}
+
+/** vector float round to positive infinity */
+void
+ppc_vrfip(struct ppc_function *p, uint vD, uint vB)
+{
+ emit_vx(p, 650, vD, 0, vB, "vrfip\tv%u, 0%u, v%u\n", FALSE);
+}
+
+/** vector float round to nearest int */
+void
+ppc_vrfin(struct ppc_function *p, uint vD, uint vB)
+{
+ emit_vx(p, 522, vD, 0, vB, "vrfin\tv%u, 0%u, v%u\n", FALSE);
+}
+
+/** vector float round to int toward zero */
+void
+ppc_vrfiz(struct ppc_function *p, uint vD, uint vB)
+{
+ emit_vx(p, 586, vD, 0, vB, "vrfiz\tv%u, 0%u, v%u\n", FALSE);
+}
+
+/** vector store: store vR at mem[rA+rB] */
+void
+ppc_stvx(struct ppc_function *p, uint vR, uint rA, uint rB)
+{
+ emit_x(p, 31, vR, rA, rB, 231, "stvx\tv%u, r%u, r%u\n");
+}
+
+/** vector load: vR = mem[rA+rB] */
+void
+ppc_lvx(struct ppc_function *p, uint vR, uint rA, uint rB)
+{
+ emit_x(p, 31, vR, rA, rB, 103, "lvx\tv%u, r%u, r%u\n");
+}
+
+/** load vector element word: vR = mem_word[ra+rb] */
+void
+ppc_lvewx(struct ppc_function *p, uint vR, uint rA, uint rB)
+{
+ emit_x(p, 31, vR, rA, rB, 71, "lvewx\tv%u, r%u, r%u\n");
+}
+
+
+
+
+/**
+ ** vector bitwise operations
+ **/
+
+/** vector and */
+void
+ppc_vand(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vx(p, 1028, vD, vA, vB, "vand\tv%u, v%u, v%u\n", FALSE);
+}
+
+/** vector and complement */
+void
+ppc_vandc(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vx(p, 1092, vD, vA, vB, "vandc\tv%u, v%u, v%u\n", FALSE);
+}
+
+/** vector or */
+void
+ppc_vor(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vx(p, 1156, vD, vA, vB, "vor\tv%u, v%u, v%u\n", FALSE);
+}
+
+/** vector nor */
+void
+ppc_vnor(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vx(p, 1284, vD, vA, vB, "vnor\tv%u, v%u, v%u\n", FALSE);
+}
+
+/** vector xor */
+void
+ppc_vxor(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vx(p, 1220, vD, vA, vB, "vxor\tv%u, v%u, v%u\n", FALSE);
+}
+
+/** Pseudo-instruction: vector move */
+void
+ppc_vmove(struct ppc_function *p, uint vD, uint vA)
+{
+ boolean print = p->print;
+ p->print = FALSE;
+ ppc_vor(p, vD, vA, vA);
+ if (print) {
+ indent(p);
+ printf("vor\tv%u, v%u, v%u \t# v%u = v%u\n", vD, vA, vA, vD, vA);
+ }
+ p->print = print;
+}
+
+/** Set vector register to {0,0,0,0} */
+void
+ppc_vzero(struct ppc_function *p, uint vr)
+{
+ boolean print = p->print;
+ p->print = FALSE;
+ ppc_vxor(p, vr, vr, vr);
+ if (print) {
+ indent(p);
+ printf("vxor\tv%u, v%u, v%u \t# v%u = {0,0,0,0}\n", vr, vr, vr, vr);
+ }
+ p->print = print;
+}
+
+
+
+
+/**
+ ** Vector shuffle / select / splat / etc
+ **/
+
+/** vector permute */
+void
+ppc_vperm(struct ppc_function *p, uint vD, uint vA, uint vB, uint vC)
+{
+ emit_va(p, 43, vD, vA, vB, vC, "vperm\tr%u, r%u, r%u, r%u");
+}
+
+/** vector select */
+void
+ppc_vsel(struct ppc_function *p, uint vD, uint vA, uint vB, uint vC)
+{
+ emit_va(p, 42, vD, vA, vB, vC, "vsel\tr%u, r%u, r%u, r%u");
+}
+
+/** vector splat byte */
+void
+ppc_vspltb(struct ppc_function *p, uint vD, uint vB, uint imm)
+{
+ emit_vx(p, 42, vD, imm, vB, "vspltb\tv%u, v%u, %u\n", TRUE);
+}
+
+/** vector splat half word */
+void
+ppc_vsplthw(struct ppc_function *p, uint vD, uint vB, uint imm)
+{
+ emit_vx(p, 588, vD, imm, vB, "vsplthw\tv%u, v%u, %u\n", TRUE);
+}
+
+/** vector splat word */
+void
+ppc_vspltw(struct ppc_function *p, uint vD, uint vB, uint imm)
+{
+ emit_vx(p, 652, vD, imm, vB, "vspltw\tv%u, v%u, %u\n", TRUE);
+}
+
+/** vector splat signed immediate word */
+void
+ppc_vspltisw(struct ppc_function *p, uint vD, int imm)
+{
+ assert(imm >= -16);
+ assert(imm < 15);
+ emit_vx(p, 908, vD, imm, 0, "vspltisw\tv%u, %d, %u\n", FALSE);
+}
+
+/** vector shift left word: vD[word] = vA[word] << (vB[word] & 0x1f) */
+void
+ppc_vslw(struct ppc_function *p, uint vD, uint vA, uint vB)
+{
+ emit_vx(p, 388, vD, vA, vB, "vslw\tv%u, v%u, v%u\n", FALSE);
+}
+
+
+
+
+/**
+ ** integer arithmetic
+ **/
+
+/** rt = ra + imm */
+void
+ppc_addi(struct ppc_function *p, uint rt, uint ra, int imm)
+{
+ emit_d(p, 14, rt, ra, imm, "addi\tr%u, r%u, %d\n", FALSE);
+}
+
+/** rt = ra + (imm << 16) */
+void
+ppc_addis(struct ppc_function *p, uint rt, uint ra, int imm)
+{
+ emit_d(p, 15, rt, ra, imm, "addis\tr%u, r%u, %d\n", FALSE);
+}
+
+/** rt = ra + rb */
+void
+ppc_add(struct ppc_function *p, uint rt, uint ra, uint rb)
+{
+ emit_xo(p, 31, rt, ra, rb, 0, 266, 0, "add\tr%u, r%u, r%u\n");
+}
+
+/** rt = ra AND ra */
+void
+ppc_and(struct ppc_function *p, uint rt, uint ra, uint rb)
+{
+ emit_x(p, 31, ra, rt, rb, 28, "and\tr%u, r%u, r%u\n"); /* note argument order */
+}
+
+/** rt = ra AND imm */
+void
+ppc_andi(struct ppc_function *p, uint rt, uint ra, int imm)
+{
+ /* note argument order */
+ emit_d(p, 28, ra, rt, imm, "andi\tr%u, r%u, %d\n", FALSE);
+}
+
+/** rt = ra OR ra */
+void
+ppc_or(struct ppc_function *p, uint rt, uint ra, uint rb)
+{
+ emit_x(p, 31, ra, rt, rb, 444, "or\tr%u, r%u, r%u\n"); /* note argument order */
+}
+
+/** rt = ra OR imm */
+void
+ppc_ori(struct ppc_function *p, uint rt, uint ra, int imm)
+{
+ /* note argument order */
+ emit_d(p, 24, ra, rt, imm, "ori\tr%u, r%u, %d\n", FALSE);
+}
+
+/** rt = ra XOR ra */
+void
+ppc_xor(struct ppc_function *p, uint rt, uint ra, uint rb)
+{
+ emit_x(p, 31, ra, rt, rb, 316, "xor\tr%u, r%u, r%u\n"); /* note argument order */
+}
+
+/** rt = ra XOR imm */
+void
+ppc_xori(struct ppc_function *p, uint rt, uint ra, int imm)
+{
+ /* note argument order */
+ emit_d(p, 26, ra, rt, imm, "xori\tr%u, r%u, %d\n", FALSE);
+}
+
+/** pseudo instruction: move: rt = ra */
+void
+ppc_mr(struct ppc_function *p, uint rt, uint ra)
+{
+ ppc_or(p, rt, ra, ra);
+}
+
+/** pseudo instruction: load immediate: rt = imm */
+void
+ppc_li(struct ppc_function *p, uint rt, int imm)
+{
+ boolean print = p->print;
+ p->print = FALSE;
+ ppc_addi(p, rt, 0, imm);
+ if (print) {
+ indent(p);
+ printf("addi\tr%u, r0, %d \t# r%u = %d\n", rt, imm, rt, imm);
+ }
+ p->print = print;
+}
+
+/** rt = imm << 16 */
+void
+ppc_lis(struct ppc_function *p, uint rt, int imm)
+{
+ ppc_addis(p, rt, 0, imm);
+}
+
+/** rt = imm */
+void
+ppc_load_int(struct ppc_function *p, uint rt, int imm)
+{
+ ppc_lis(p, rt, (imm >> 16)); /* rt = imm >> 16 */
+ ppc_ori(p, rt, rt, (imm & 0xffff)); /* rt = rt | (imm & 0xffff) */
+}
+
+
+
+
+/**
+ ** integer load/store
+ **/
+
+/** store rs at memory[(ra)+d],
+ * then update ra = (ra)+d
+ */
+void
+ppc_stwu(struct ppc_function *p, uint rs, uint ra, int d)
+{
+ emit_d(p, 37, rs, ra, d, "stwu\tr%u, %d(r%u)\n", TRUE);
+}
+
+/** store rs at memory[(ra)+d] */
+void
+ppc_stw(struct ppc_function *p, uint rs, uint ra, int d)
+{
+ emit_d(p, 36, rs, ra, d, "stw\tr%u, %d(r%u)\n", TRUE);
+}
+
+/** Load rt = mem[(ra)+d]; then zero set high 32 bits to zero. */
+void
+ppc_lwz(struct ppc_function *p, uint rt, uint ra, int d)
+{
+ emit_d(p, 32, rt, ra, d, "lwz\tr%u, %d(r%u)\n", TRUE);
+}
+
+
+
+/**
+ ** Float (non-vector) arithmetic
+ **/
+
+/** add: frt = fra + frb */
+void
+ppc_fadd(struct ppc_function *p, uint frt, uint fra, uint frb)
+{
+ emit_a(p, 63, frt, fra, frb, 21, 0, "fadd\tf%u, f%u, f%u\n");
+}
+
+/** sub: frt = fra - frb */
+void
+ppc_fsub(struct ppc_function *p, uint frt, uint fra, uint frb)
+{
+ emit_a(p, 63, frt, fra, frb, 20, 0, "fsub\tf%u, f%u, f%u\n");
+}
+
+/** convert to int: rt = (int) ra */
+void
+ppc_fctiwz(struct ppc_function *p, uint rt, uint fra)
+{
+ emit_x(p, 63, rt, 0, fra, 15, "fctiwz\tr%u, r%u, r%u\n");
+}
+
+/** store frs at mem[(ra)+offset] */
+void
+ppc_stfs(struct ppc_function *p, uint frs, uint ra, int offset)
+{
+ emit_d(p, 52, frs, ra, offset, "stfs\tr%u, %d(r%u)\n", TRUE);
+}
+
+/** store frs at mem[(ra)+(rb)] */
+void
+ppc_stfiwx(struct ppc_function *p, uint frs, uint ra, uint rb)
+{
+ emit_x(p, 31, frs, ra, rb, 983, "stfiwx\tr%u, r%u, r%u\n");
+}
+
+/** load frt = mem[(ra)+offset] */
+void
+ppc_lfs(struct ppc_function *p, uint frt, uint ra, int offset)
+{
+ emit_d(p, 48, frt, ra, offset, "stfs\tr%u, %d(r%u)\n", TRUE);
+}
+
+
+
+
+
+/**
+ ** branch instructions
+ **/
+
+/** BLR: Branch to link register (p. 35) */
+void
+ppc_blr(struct ppc_function *p)
+{
+ emit_i(p, 18, 0, 0, 1);
+ if (p->print) {
+ indent(p);
+ printf("blr\n");
+ }
+}
+
+/** Branch Conditional to Link Register (p. 36) */
+void
+ppc_bclr(struct ppc_function *p, uint condOp, uint branchHint, uint condReg)
+{
+ emit_xl(p, 19, condOp, condReg, branchHint, 16, 0);
+ if (p->print) {
+ indent(p);
+ printf("bclr\t%u %u %u\n", condOp, branchHint, condReg);
+ }
+}
+
+/** Pseudo instruction: return from subroutine */
+void
+ppc_return(struct ppc_function *p)
+{
+ ppc_bclr(p, BRANCH_COND_ALWAYS, BRANCH_HINT_SUB_RETURN, 0);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-07 15:31:56 +0000