/ fp1 -- floating point simulator
m.ext = 200 / long mode bit
m.lngi = 100 / long integer mode
.globl fptrap, fpjsr, _reenter
.globl ac0, ac1, ac2, ac3
sub $8,sp / room for double push
bic $100000,fpsr / clear fp error
add (r3),r0 /shouldn't happen separate i and d !!!