sim: ppc: move spreg.[ch] files to the source tree

Simplify the build by moving the generation of these files from
build-time (via dgen.c that we have to compile & execute on the
build system) to maintainer/release mode (via spreg-gen.py that
we only ever execute when the spreg table actually changes).  It
speeds up the build process and makes it easier for us to reason
about & review changes to the code generator.

The tool is renamed from "dgen" because it's hardcoded to only
generated spreg files.  It isn't a generalized tool for creating
lookup tables.

1 files changed, 108 insertions, 0 deletions

diff --git a/sim/ppc/spreg.h b/sim/ppc/spreg.h
new file mode 100644
index 0000000..c9b3adb
--- /dev/null
+++ b/sim/ppc/spreg.h
@@ -0,0 +1,108 @@
+/* DO NOT EDIT: GENERATED BY spreg-gen.py.
+
+   Copyright (C) 1994-1995 Andrew Cagney <cagney@highland.com.au>
+   Copyright (C) 1996-2022 Free Software Foundation, Inc.
+
+   This file is part of the GNU simulators.
+
+   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 3 of the License, 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, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _SPREG_H_
+#define _SPREG_H_
+
+typedef unsigned_word spreg;
+
+typedef enum {
+  spr_mq = 0,
+  spr_xer = 1,
+  spr_rtcu = 4,
+  spr_rtcl = 5,
+  spr_lr = 8,
+  spr_ctr = 9,
+  spr_dsisr = 18,
+  spr_dar = 19,
+  spr_dec = 22,
+  spr_sdr1 = 25,
+  spr_srr0 = 26,
+  spr_srr1 = 27,
+  spr_vrsave = 256,
+  spr_tbrl = 268,
+  spr_tbru = 269,
+  spr_sprg0 = 272,
+  spr_sprg1 = 273,
+  spr_sprg2 = 274,
+  spr_sprg3 = 275,
+  spr_ear = 282,
+  spr_tbl = 284,
+  spr_tbu = 285,
+  spr_pvr = 287,
+  spr_spefscr = 512,
+  spr_ibat0u = 528,
+  spr_ibat0l = 529,
+  spr_ibat1u = 530,
+  spr_ibat1l = 531,
+  spr_ibat2u = 532,
+  spr_ibat2l = 533,
+  spr_ibat3u = 534,
+  spr_ibat3l = 535,
+  spr_dbat0u = 536,
+  spr_dbat0l = 537,
+  spr_dbat1u = 538,
+  spr_dbat1l = 539,
+  spr_dbat2u = 540,
+  spr_dbat2l = 541,
+  spr_dbat3u = 542,
+  spr_dbat3l = 543,
+  spr_ummcr0 = 936,
+  spr_upmc1 = 937,
+  spr_upmc2 = 938,
+  spr_usia = 939,
+  spr_ummcr1 = 940,
+  spr_upmc3 = 941,
+  spr_upmc4 = 942,
+  spr_mmcr0 = 952,
+  spr_pmc1 = 953,
+  spr_pmc2 = 954,
+  spr_sia = 955,
+  spr_mmcr1 = 956,
+  spr_pmc3 = 957,
+  spr_pmc4 = 958,
+  spr_sda = 959,
+  spr_dmiss = 976,
+  spr_dcmp = 977,
+  spr_hash1 = 978,
+  spr_hash2 = 979,
+  spr_imiss = 980,
+  spr_icmp = 981,
+  spr_rpa = 982,
+  spr_hid0 = 1008,
+  spr_hid1 = 1009,
+  spr_iabr = 1010,
+  spr_dabr = 1013,
+  spr_l2cr = 1017,
+  spr_ictc = 1019,
+  spr_thrm1 = 1020,
+  spr_thrm2 = 1021,
+  spr_thrm3 = 1022,
+  spr_pir = 1023,
+  nr_of_sprs = 1024
+} sprs;
+
+INLINE_SPREG(int) spr_is_valid(sprs spr);
+INLINE_SPREG(int) spr_is_readonly(sprs spr);
+INLINE_SPREG(const char *) spr_name(sprs spr);
+INLINE_SPREG(int) spr_index(sprs spr);
+INLINE_SPREG(int) spr_length(sprs spr);
+
+#endif /* _SPREG_H_ */