xemu/tests/tcg/lm32/helper.S
Michael Walle 4e7d30a22a test: lm32: use semihosting for testing
Instead of the lm32-sys device, use semihosting to print to the host
console and exit the test.

Signed-off-by: Michael Walle <michael@walle.cc>
2014-05-24 19:42:29 +02:00

66 lines
791 B
ArmAsm

.text
.global _start, _write, _exit
.global _tc_fail, _tc_pass
_write:
addi sp, sp, -4
sw (sp+4), r8
mvi r8, 5
scall
lw r8, (sp+4)
addi sp, sp, 4
ret
_exit:
mvi r8, 1
scall
1:
bi 1b
_tc_pass:
.data
1:
.ascii "OK\n"
2:
.text
addi sp, sp, -16
sw (sp+4), ra
sw (sp+8), r1
sw (sp+12), r2
sw (sp+16), r3
mvi r1, 1
mvhi r2, hi(1b)
ori r2, r2, lo(1b)
mvi r3, (2b - 1b)
calli _write
lw r3, (sp+16)
lw r2, (sp+12)
lw r1, (sp+8)
lw ra, (sp+4)
addi sp, sp, 16
ret
_tc_fail:
.data
1:
.ascii "FAILED\n"
2:
.text
addi sp, sp, -16
sw (sp+4), ra
sw (sp+8), r1
sw (sp+12), r2
sw (sp+16), r3
sw (sp+4), ra
mvi r1, 1
mvhi r2, hi(1b)
ori r2, r2, lo(1b)
mvi r3, (2b - 1b)
calli _write
lw r3, (sp+16)
lw r2, (sp+12)
lw r1, (sp+8)
lw ra, (sp+4)
addi sp, sp, 16
ret