diff options
Diffstat (limited to 'sim/ppc/vm_n.h')
| -rw-r--r-- | sim/ppc/vm_n.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/sim/ppc/vm_n.h b/sim/ppc/vm_n.h new file mode 100644 index 00000000000..9222ffa2cc0 --- /dev/null +++ b/sim/ppc/vm_n.h @@ -0,0 +1,134 @@ +/* This file is part of the program psim. + + Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au> + + 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 2 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, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + */ + + +#ifndef N +#error "N must be #defined" +#endif + +/* NOTE: See end of file for #undef */ +#define unsigned_N XCONCAT2(unsigned_,N) +#define T2H_N XCONCAT2(T2H_,N) +#define H2T_N XCONCAT2(H2T_,N) +#define vm_data_map_read_N XCONCAT2(vm_data_map_read_,N) +#define vm_data_map_write_N XCONCAT2(vm_data_map_write_,N) + + +INLINE_VM\ +(unsigned_N) +vm_data_map_read_N(vm_data_map *map, + unsigned_word ea, + cpu *processor, + unsigned_word cia) +{ + if ((ea & (sizeof(unsigned_N)-1)) == 0) { + unsigned ra = vm_real_data_addr(map, ea, 1/*is-read*/, processor, cia); + unsigned_N val; + if (WITH_XOR_ENDIAN) + ra ^= map->translation.xor[sizeof(unsigned_N) - 1]; + val = XCONCAT2(core_map_read_,N)(map->read, ra, processor, cia); + if (WITH_MON & MONITOR_LOAD_STORE_UNIT) + mon_read(ea, ra, sizeof(unsigned_N), processor, cia); + TRACE(trace_load_store, ("load cia=0x%lx ea=0x%lx N=%ld val=0x%lx\n", + (long)cia, (long)ea, (long)sizeof(unsigned_N), (long)val)); + return val; + } + else { + switch (CURRENT_ALIGNMENT) { + case STRICT_ALIGNMENT: + alignment_interrupt(processor, cia, ea); + return 0; + case NONSTRICT_ALIGNMENT: + { + unsigned_N val; + if (vm_data_map_read_buffer(map, &val, ea, sizeof(unsigned_N), processor, cia) + != sizeof(unsigned_N)) { + cpu_error(processor, cia, "misaligned %d byte read to 0x%lx failed", + sizeof(unsigned_N), (unsigned long)ea); + } + val = T2H_N(val); + if (WITH_MON & MONITOR_LOAD_STORE_UNIT) { + /* YUCK */ + unsigned ra = vm_real_data_addr(map, ea, 1, processor, cia); + mon_read(ea, ra, sizeof(unsigned_N), processor, cia); + } + TRACE(trace_load_store, ("load cia=0x%lx ea=0x%lx N=%ld data=0x%lx\n", + (long)cia, (long)ea, (long)sizeof(unsigned_N), (long)val)); + return val; + } + default: + error("internal error - vm_data_map_read_N - bad switch"); + return 0; + } + } +} + +INLINE_VM\ +(void) +vm_data_map_write_N(vm_data_map *map, + unsigned_word ea, + unsigned_N val, + cpu *processor, + unsigned_word cia) +{ + if ((ea & (sizeof(unsigned_N)-1)) == 0) { + unsigned ra = vm_real_data_addr(map, ea, 0/*is-read?*/, processor, cia); + if (WITH_XOR_ENDIAN) + ra ^= map->translation.xor[sizeof(unsigned_N) - 1]; + XCONCAT2(core_map_write_,N)(map->write, ra, val, processor, cia); + if (WITH_MON & MONITOR_LOAD_STORE_UNIT) + mon_write(ea, ra, sizeof(unsigned_N), processor, cia); + TRACE(trace_load_store, ("store cia=0x%lx ea=0x%lx N=%ld val=0x%lx\n", + (long)cia, (long)ea, (long)sizeof(unsigned_N), (long)val)); + } + else { + switch (CURRENT_ALIGNMENT) { + case STRICT_ALIGNMENT: + alignment_interrupt(processor, cia, ea); + break; + case NONSTRICT_ALIGNMENT: + { + unsigned_N data = H2T_N(val); + if (vm_data_map_write_buffer(map, &data, ea, sizeof(unsigned_N), 0, processor, cia) + != sizeof(unsigned_N)) { + cpu_error(processor, cia, "misaligned %d byte write to 0x%lx failed", + sizeof(unsigned_N), (unsigned long)ea); + } + if (WITH_MON & MONITOR_LOAD_STORE_UNIT) { + /* YUCK */ + unsigned ra = vm_real_data_addr(map, ea, 1, processor, cia); + mon_write(ea, ra, sizeof(unsigned_N), processor, cia); + } + TRACE(trace_load_store, ("store cia=0x%lx ea=0x%lx N=%ld val=0x%lx\n", + (long)cia, (long)ea, (long)sizeof(unsigned_N), (long)val)); + } + break; + default: + error("internal error - vm_data_map_write_N - bad switch"); + } + } +} + +/* NOTE: see start of file for #define */ +#undef unsigned_N +#undef T2H_N +#undef H2T_N +#undef vm_data_map_read_N +#undef vm_data_map_write_N |