mirror of https://gitee.com/openkylin/qemu.git
121 lines
2.7 KiB
C
121 lines
2.7 KiB
C
/*
|
|
* MIPS emulation memory micro-operations for qemu.
|
|
*
|
|
* Copyright (c) 2004-2005 Jocelyn Mayer
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
/* Standard loads and stores */
|
|
void glue(op_lb, MEMSUFFIX) (void)
|
|
{
|
|
T0 = glue(ldsb, MEMSUFFIX)(T0);
|
|
RETURN();
|
|
}
|
|
|
|
void glue(op_lbu, MEMSUFFIX) (void)
|
|
{
|
|
T0 = glue(ldub, MEMSUFFIX)(T0);
|
|
RETURN();
|
|
}
|
|
|
|
void glue(op_sb, MEMSUFFIX) (void)
|
|
{
|
|
glue(stb, MEMSUFFIX)(T0, T1);
|
|
RETURN();
|
|
}
|
|
|
|
void glue(op_lh, MEMSUFFIX) (void)
|
|
{
|
|
T0 = glue(ldsw, MEMSUFFIX)(T0);
|
|
RETURN();
|
|
}
|
|
|
|
void glue(op_lhu, MEMSUFFIX) (void)
|
|
{
|
|
T0 = glue(lduw, MEMSUFFIX)(T0);
|
|
RETURN();
|
|
}
|
|
|
|
void glue(op_sh, MEMSUFFIX) (void)
|
|
{
|
|
glue(stw, MEMSUFFIX)(T0, T1);
|
|
RETURN();
|
|
}
|
|
|
|
void glue(op_lw, MEMSUFFIX) (void)
|
|
{
|
|
T0 = glue(ldl, MEMSUFFIX)(T0);
|
|
RETURN();
|
|
}
|
|
|
|
void glue(op_sw, MEMSUFFIX) (void)
|
|
{
|
|
glue(stl, MEMSUFFIX)(T0, T1);
|
|
RETURN();
|
|
}
|
|
|
|
/* "half" load and stores. We must do the memory access inline,
|
|
or fault handling won't work. */
|
|
void glue(op_lwl, MEMSUFFIX) (void)
|
|
{
|
|
uint32_t tmp = glue(ldl, MEMSUFFIX)(T0 & ~3);
|
|
CALL_FROM_TB1(glue(do_lwl, MEMSUFFIX), tmp);
|
|
RETURN();
|
|
}
|
|
|
|
void glue(op_lwr, MEMSUFFIX) (void)
|
|
{
|
|
uint32_t tmp = glue(ldl, MEMSUFFIX)(T0 & ~3);
|
|
CALL_FROM_TB1(glue(do_lwr, MEMSUFFIX), tmp);
|
|
RETURN();
|
|
}
|
|
|
|
void glue(op_swl, MEMSUFFIX) (void)
|
|
{
|
|
uint32_t tmp = glue(ldl, MEMSUFFIX)(T0 & ~3);
|
|
tmp = CALL_FROM_TB1(glue(do_swl, MEMSUFFIX), tmp);
|
|
glue(stl, MEMSUFFIX)(T0 & ~3, tmp);
|
|
RETURN();
|
|
}
|
|
|
|
void glue(op_swr, MEMSUFFIX) (void)
|
|
{
|
|
uint32_t tmp = glue(ldl, MEMSUFFIX)(T0 & ~3);
|
|
tmp = CALL_FROM_TB1(glue(do_swr, MEMSUFFIX), tmp);
|
|
glue(stl, MEMSUFFIX)(T0 & ~3, tmp);
|
|
RETURN();
|
|
}
|
|
|
|
void glue(op_ll, MEMSUFFIX) (void)
|
|
{
|
|
T1 = T0;
|
|
T0 = glue(ldl, MEMSUFFIX)(T0);
|
|
env->CP0_LLAddr = T1;
|
|
RETURN();
|
|
}
|
|
|
|
void glue(op_sc, MEMSUFFIX) (void)
|
|
{
|
|
CALL_FROM_TB0(dump_sc);
|
|
if (T0 == env->CP0_LLAddr) {
|
|
glue(stl, MEMSUFFIX)(T0, T1);
|
|
T0 = 1;
|
|
} else {
|
|
T0 = 0;
|
|
}
|
|
RETURN();
|
|
}
|