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.include "t-macros.i"
start
# US bit in the PSW
load r2 PSW_US
stsr psw, r3
or r2, r3
ldsr r3, psw
# check that the bit really was set
stsr psw, r3
and r2, r3
check1x 1 r3 PSW_US
# put something into EP
load ep ep_base
test_sldb1:
sld.b 0[ep], r4
check1x 2 r4 0xffffff80
test_sldbu1:
sld.bu 0[ep], r4
check1x 3 r4, 0x80
test_sldh1:
sld.h 0[ep], r4
check1x 4 r4 0xffff8080
test_sldhu1:
sld.hu 0[ep], r4
check1x 5 r4, 0x8080
test_sldw1:
sld.w 0[ep], r4
check1x 5 r4, 0x80808080
# Now clear the US bit - switch signed/unsigned
load r2 PSW_US
not r2, r2
stsr psw, r3
and r2, r3
ldsr r3, psw
test_sldb2:
sld.b 0[ep], r4
check1x 6 r4, 0x80
test_sldbu2:
sld.bu 0[ep], r4
check1x 7 r4 0xffffff80
test_sldh2:
sld.h 0[ep], r4
check1x 8 r4, 0x8080
test_sldhu2:
sld.hu 0[ep], r4
check1x 9 r4 0xffff8080
test_sldw2:
sld.w 0[ep], r4
check1x 5 r4, 0x80808080
exit0
.align 2
ep_base:
.long 0x80808080
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