Tests for fx451 emulator
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Last modified: 08Jan08
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Questions:
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Experiment to see value of y (use x<->y : x<->m : x<->y ; M now contains Y, x and y unchanged) in the following scenarios:
  2+3*4=
  2+3*4+5=
  2+3*4*5=


Current development: K mode
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--,++,xx and // all go into K mode.
_+,x/,x+ etc just do last op entered


Other TODOs:
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Make display flash briefly when non-AC pressed in E mode.


Tests currently failing:
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12**2.3=9 +/- = (-108)
2.5//74=85.2= (34.08)
17++=== (68)
1.7**=== (8.3521)
3*6**4=5 +/- = (-90)
4*(2+3)//56=23= (1.15)
5***= (25, no k)

Tests passed:
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1+1=
1.0+1.0=
1.1+2.2=
1.999999999 + 0.000000001 =
1000.1 + 0.1 =
0.1+0.1=
0+0=
0+0.1=
0.1+0=
-1 + 1 =
1 + -1 =
1000.1 + -0.1 =
-23.4 + -23.4 =
0+ -1 =
-1 + -2 =
2 + 5 C 6 =
2 C 3 + 5 =
sh 9 + 1 =
1 E 2 + (should show 100)
1 E 2 + 1 =
1 E 32 + 1 =
sh 7 + 1 =
sh 2 + 1 =
sh 4 +/- + sh 4 +/- =
1 + sh 9 =
1 + sh 7 =
1 + sh 2 =
1 + sh 3 =
1 E 2 =
1 +/- =
2+3=
2-3=
2*3=
2/3=
2/6=
0-2=
0*2=
0/2=
2-0=
2*0=
2/0=
5+2*3=
2+3*4+
2++=
2.3++3=6= (8.3)
5.6--7=4.5 +/- = (-10.1)
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