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.include "t-macros.i"
start
PSW_BITS = PSW_FX|PSW_ST|PSW_SM
loadpsw2 PSW_BITS
;; Test normal sadd
loadacc2 a0 0x00 0x7fff 0xffff
loadacc2 a1 0xff 0x8000 0x0000
sadd a1, a0
checkacc2 1 a0 0x00 0x7fff 0xffff
checkacc2 2 a1 0xff 0x8000 0x7fff
;; Test overflow
loadacc2 a0 0x00 0x0000 0x0000
loadacc2 a1 0x01 0x8000 0x0000
sadd a1, a0
checkacc2 3 a0 0x00 0x0000 0x0000
checkacc2 4 a1 0x00 0x7fff 0xffff
loadacc2 a0 0x00 0xffff 0xffff
loadacc2 a1 0x00 0xffff 0xffff
sadd a1, a0
checkacc2 5 a1 0x00 0x7fff 0xffff
checkacc2 6 a0 0x00 0xffff 0xffff
;; Test underflow
loadacc2 a0 0x00 0x0000 0x0000
loadacc2 a1 0x80 0x8000 0x0000
sadd a1, a0
checkacc2 7 a0 0x00 0x0000 0x0000
checkacc2 8 a1 0xff 0x8000 0x0000
exit0
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