Omron C200H - Page 195

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HR 11, and either #0000 or #0001 is placed in HR 12 (0001 indicates a nega-
tive answer).
CLC(41)
00000
SBB(51)
010
DM 0100
HR 10
MOV(21)
#0000
HR 12
MOV(21)
#0001
HR 12
TR 0
25504
25504
SBB(51)
011
DM 0101
HR 11
CLC(41)
25504
SBB(51)
#0000
HR 10
HR 10
SBB(51)
#0000
HR 11
HR 11
Address Instruction Operands
00000 LD 00000
00001 OUT TR 0
00002 CLC(41)
00003 SBB(51)
010
DM 0100
HR 10
00004 SBB(51)
011
DM 0101
HR 11
00005 AND 25505
00006 CLC(41)
00007 SBB(51)
# 0000
HR 10
HR 10
00008 SBB(51)
# 0000
HR 11
HR 11
00009 LD TR 0
00010 AND NOT 25504
00011 MOV(21)
# 0000
HR 12
00012 LD TR 0
00013 AND 25504
00014 MOV(21)
# 0000
HR 12
In the case below, 20F55A10 – B8A360E3 = 97AE06D3. In the the lower
4-digit subtraction, Su > Mi, so CY(SR 25504) becomes 1, and the result of
the higher 4-digit subtraction is decremented by 1. In the final calculations,
#0000 – F9D2 = 0000 + (10000 – F9D2) = 06D3.
Binary Calculations Section 5-18