Hello Angel,
I have written a small test program to check the comparisons. The test with 2CMP are all OK. There seems to be a small inconsistency when using 1CMP. The two representations of zero (0 and -0) are both evaluating to zero when using the comparisons X=0?, X#0?, etc. with my HP-16C, but not with the emulator.
I have written a program to check the test. Here is the output:
Code:
2CMP
X=0? YES: OK
X#0? YES: OK
X<0? YES: OK
X<=0?YES: OK
X>0? YES: OK
X>=0?YES: OK
X=Y? YES: OK
X#Y? YES: OK
X<Y? YES: OK
X<=Y?YES: OK
X>Y? YES: OK
X>=Y?YES: OK
X=0? NO: OK
X#0? NO: OK
X<0? NO: OK
X<=0?NO: OK
X>0? NO: OK
X>=0?NO: OK
X=Y? NO: OK
X#Y? NO: OK
X<Y? NO: OK
X<=Y?NO: OK
X>Y? NO: OK
X>=Y?NO: OK
1CMP
X=0? YES: ERR
X#0? NO: ERR
X<0? NO: ERR
X<=0?YES: OK
X>0? NO: OK
X>=0?YES: ERR
Here is the program with comments:
Code:
LBL "TST"
XROM 16,22 ; HEXM
2
XROM 16,02 ; 16#
22 ; LOW16^
XROM 16,09 ; 16WSZ
"2CMP"
AVIEW
FC? 21
PSE
XROM 16,11 ; 2CMP
SF 05 ; Expected "YES"
CF 07 ; Show args?
0
XROM 16,02 ; 16#
22 ; LOW16^
XEQ 02 ; X=0?
1
XROM 16,02 ; 16#
22 ; LOW16^
XROM 16,51 ; 16CHS
XEQ 03 ; X#0?
XEQ 04 ; X<0?
XEQ 05 ; X<=0?
XROM 16,51 ; 16CHS
XEQ 06 ; X>0?
XEQ 07 ; X>=0?
0
XROM 16,02 ; 16#
22 ; LOW16^
XROM 16,52 ; 16ENT^
XEQ 08 ; X=Y?
1
XROM 16,02 ; 16#
22 ; LOW16^
XROM 16,51 ; 16CHS
XEQ 09 ; X#Y?
XEQ 10 ; X<Y?
XEQ 11 ; X<=Y?
1
XROM 16,02 ; 16#
22 ; LOW16^
XEQ 12 ; X>Y?
XEQ 13 ; X>=Y?
CF 05 ; Expected "NO"
XEQ 02 ; X=0?
0
XROM 16,02 ; 16#
22 ; LOW16^
XEQ 03 ; X#0?
XEQ 04 ; X<0?
1
XROM 16,02 ; 16#
22 ; LOW16^
XEQ 05 ; X<=0?
XROM 16,52 ; 16ENT^
XROM 16,51 ; 16CHS
XEQ 06 ; X>0?
XEQ 07 ; X>=0?
0
XROM 16,02 ; 16#
22 ; LOW16^
XEQ 08 ; X=Y?
XROM 16,52 ; 16ENT^
XEQ 09 ; X#Y?
XEQ 10 ; X<Y?
1
XROM 16,02 ; 16#
22 ; LOW16^
XEQ 11 ; X<=Y?
0
XROM 16,02 ; 16#
22 ; LOW16^
XEQ 12 ; X>Y?
XEQ 13 ; X>=Y?
"1CMP"
AVIEW
FC? 21
PSE
XROM 16,10 ; 1CMP
3
XROM 16,02 ; 16#
22 ; LOW16^
SF 05 ; Expected "YES"
XEQ 02 ; X=0?
CF 05 ; Expected "NO"
XEQ 03 ; X#0?
XEQ 04 ; X<0?
SF 05 ; Expected "YES"
XEQ 05 ; X<=0?
CF 05 ; Expected "NO"
XEQ 06 ; X>0?
SF 05 ; Expected "YES"
XEQ 07 ; X>=0?
RTN
LBL 02
XEQ 97 ; Copy flag 05 -> flag 06
"X=0? "
XROM 16,02 ; 16#
6 ; 16X=0?
GTO 98 ; Invert flag and show result
GTO 99 ; Show result
LBL 03
XEQ 97 ; Copy flag 05 -> flag 06
"X#0? "
XROM 16,02 ; 16#
7 ; 16X#0?
GTO 98
GTO 99
LBL 04
XEQ 97 ; Copy flag 05 -> flag 06
"X<0? "
XROM 16,02 ; 16#
8 ; 16X<0?
GTO 98
GTO 99
LBL 05
XEQ 97 ; Copy flag 05 -> flag 06
"X<=0?"
XROM 16,02 ; 16#
9 ; 16X<=0?
GTO 98
GTO 99
LBL 06
XEQ 97 ; Copy flag 05 -> flag 06
"X>0? "
XROM 16,02 ; 16#
10 ; 16X>0?
GTO 98
GTO 99
LBL 07
XEQ 97 ; Copy flag 05 -> flag 06
"X>=0?"
XROM 16,02 ; 16#
11 ; 16X>=0?
GTO 98
GTO 99
LBL 08
XEQ 97 ; Copy flag 05 -> flag 06
"X=Y? "
XROM 16,02 ; 16#
12 ; 16X=Y?
GTO 98
GTO 99
LBL 09
XEQ 97 ; Copy flag 05 -> flag 06
"X#Y? "
XROM 16,02 ; 16#
13 ; 16X#Y?
GTO 98
GTO 99
LBL 10
XEQ 97 ; Copy flag 05 -> flag 06
"X<Y? "
XROM 16,02 ; 16#
14 ; 16X<Y?
GTO 98
GTO 99
LBL 11
XEQ 97 ; Copy flag 05 -> flag 06
"X<=Y?"
XROM 16,02 ; 16#
15 ; 16X<=Y?
GTO 98
GTO 99
LBL 12
XEQ 97 ; Copy flag 05 -> flag 06
"X>Y? "
XROM 16,02 ; 16#
16 ; 16X>Y?
GTO 98
GTO 99
LBL 13
XEQ 97 ; Copy flag 05 -> flag 06
"X>=Y?"
XROM 16,02 ; 16#
17 ; 16X>=Y?
GTO 98
GTO 99
LBL 97
FC? 05 ; Copy flag 05 -> flag 06
CF 06 ; ...
FS? 05 ; ...
SF 06 ; ...
RTN
LBL 99
FC?C 06 ; Invert Flag 06
SF 06 ; ...
LBL 98
FC? 07
GTO 00
VIEW Y
VIEW X
LBL 00
FS? 05
"|-YES: "
FC? 05
"|-NO: "
FS? 06
"|-OK"
FC? 06
"|-ERR"
AVIEW
FC? 21
PSE
END
HP16-TST.zip (Size: 2.56 KB / Downloads: 4)
Search
Member List
Calendar
Help
/
(41) HP-16C+ - 16X=0? issue
