Atmosphere/thermosphere/src/breakpoints_watchpoints_load.s

65 lines
1.6 KiB
ArmAsm

/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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/>.
*/
#include "asm_macros.s"
// Precondition: x1 <= 16
FUNCTION loadBreakpointRegs
// x1 = number
dmb ish
adr x16, 1f
add x0, x0, #(16 * 8)
mov x4, #(16 * 12)
sub x4, x4, x1,lsl #3
sub x4, x4, x1,lsl #2
add x16, x16, x4
br x16
1:
.irp count, 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0
ldp x2, x3, [x0, #-0x10]!
msr dbgbcr\count\()_el1, x2
msr dbgbvr\count\()_el1, x3
.endr
dsb ish
isb
ret
END_FUNCTION
// Precondition: x1 <= 16
FUNCTION loadWatchpointRegs
// x1 = number
dmb ish
adr x16, 1f
add x0, x0, #(16 * 8)
mov x4, #(16 * 12)
sub x4, x4, x1,lsl #3
sub x4, x4, x1,lsl #2
add x16, x16, x4
br x16
1:
.irp count, 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0
ldp x2, x3, [x0, #-0x10]!
msr dbgwcr\count\()_el1, x2
msr dbgwvr\count\()_el1, x3
.endr
dsb ish
isb
ret
END_FUNCTION