UPD78F0886GA(A)-GAM-AX NEC, UPD78F0886GA(A)-GAM-AX Datasheet - Page 62

• Manufacturer Part Number: UPD78F0886GA(A)-GAM-AX
• Description: 8BIT MCU, 60K FLASH, 3KB RAM, CAN
• Manufacturer: NEC

Specifications of UPD78F0886GA(A)-GAM-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 41
• Ram Memory Size: 3KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm Channels: 6
• Digital Ic Case Style: LQFP
• Core Size: 8bit
• Program Memory Size: 60KB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

62
[Instruction format]
[Operation]
[Operand]
[Flag]
[Description]
[Description example]
CMP
• The source operand (src) specified by the 2nd operand is subtracted from the destination operand (dst)
• If the subtraction result is 0, the Z flag is set (1). In all other cases, the Z flag is cleared (0).
• If the subtraction generates a borrow out of bit 7, the CY flag is set (1). In all other cases, the CY flag is
• If the subtraction generates a borrow for bit 3 out of bit 4, the AC flag is set (1). In all other cases, the AC
CMP FE38H, #38H;
Note Except r = A
specified by the 1st operand.
The subtraction result is not stored anywhere and only the Z, AC and CY flags are changed.
cleared (0).
flag is cleared (0).
Mnemonic
Z
×
CMP
AC
×
A, #byte
saddr, #byte
A, r
r, A
A, saddr
CMP dst, src
dst – src
38H is subtracted from the contents at address FE38H and only the flags are changed
(comparison of contents at address FE38H and the immediate data).
CY
×
Operand(dst,src)
CHAPTER 5 EXPLANATION OF INSTRUCTIONS
User's Manual U12326EJ4V0UM
Note
Mnemonic
CMP
A, !addr16
A, [HL]
A, [HL+byte]
A, [HL+B]
A, [HL+C]
Operand(dst,src)
Byte Data Comparison
Compare