Nintendo DMG-01 - Game Boy Console Manual page 83

TM
Game Boy CPU Manual
4. SBC A,n
Description:
Subtract n + Carry flag from A.
Use with:
n = A,B,C,D,E,H,L,(HL),#
Flags affected:
Z - Set if result is zero.
N - Set.
H - Set if no borrow from bit 4.
C - Set if no borrow.
Opcodes:
Instruction
SBC
SBC
SBC
SBC
SBC
SBC
SBC
SBC
SBC
by DP
Parameters
A,A
A,B
A,C
A,D
A,E
A,H
A,L
A,(HL)
A,#
Opcode Cycles
9F 4
98 4
99 4
9A 4
9B 4
9C 4
9D 4
9E 8
?? ?
3.3.3. 8-Bit ALU
Page 83