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TheRock/debug-tools/rocgdb/source/sim/testsuite/frv/interrupts/badalign-fr550.cgs
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2026-09-02 16:34:47 -07:00

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# frv testcase to generate interrupt for st $GRk,@($GRi,$GRj)
# mach: fr550
.include "testutils.inc"
start
.global align
align:
and_spr_immed -4081,tbr ; clear tbr.tt
set_gr_spr tbr,gr17
inc_gr_immed 0x100,gr17 ; address of exception handler
set_bctrlr_0_0 gr17
set_spr_immed 128,lcr
set_psr_et 1
set_gr_immed 0xdeadbeef,gr17
set_gr_immed 0,gr15
inc_gr_immed 2,sp ; out of alignment
test_spr_bits 1,0,0,isr ; ISR.EMAM always clear (not used)
sti gr17,@(sp,0) ; no exception
sti gr17,@(sp,4) ; no exception
ldi @(sp,0),gr18 ; stored at unaligned address
test_gr_immed 0xdeadbeef,gr18
ldi @(sp,0),gr19 ; no exception
test_gr_immed 0xdeadbeef,gr19
and_spr_immed 0xfffffffe,isr ; turn off ISR.EMAM
sti gr17,@(sp,0) ; misaligned -- no exception
test_gr_immed 0,gr15
set_gr_gr sp,gr20
set_gr_immed 1,gr21
set_gr_immed 0x10101010,gr10
nop.p
ldu @(sp,gr21),gr10 ; misaligned read no exception
test_gr_immed 0,gr15 ; handler was not called
test_gr_immed 0xadbeefde,gr10 ; gr10 updated
test_gr_immed 1,gr21 ; gr21 not updated
inc_gr_immed 1,gr20
test_gr_gr gr20,sp ; sp updated
pass