add

Operands

The value of BC is added to HL.

Every form of add the assembler accepts. The cycles column counts clock cycles, written as taken/not taken for the conditional forms.

Instruction	Description	Flags	Bytes	Cycles
add hl,bc	The value of BC is added to HL.	CN=0H	1	11
add hl,de	The value of DE is added to HL.	CN=0H	1	11
add hl,hl	The value of HL is added to HL.	CN=0H	1	11
add hl,sp	The value of SP is added to HL.	CN=0H	1	11
add a,b	Adds B to A.	CN=0P/V=VHZS	1	4
add a,c	Adds C to A.	CN=0P/V=VHZS	1	4
add a,d	Adds D to A.	CN=0P/V=VHZS	1	4
add a,e	Adds E to A.	CN=0P/V=VHZS	1	4
add a,h	Adds H to A.	CN=0P/V=VHZS	1	4
add a,l	Adds L to A.	CN=0P/V=VHZS	1	4
add a,(hl)	Adds (HL) to A.	CN=0P/V=VHZS	1	7
add a,a	Adds A to A.	CN=0P/V=VHZS	1	4
add a,nn	Adds `nn` to A.	CN=0P/V=VHZS	2	7
add ix,bc	The value of BC is added to IX.	CN=0H	2	15
add ix,de	The value of DE is added to IX.	CN=0H	2	15
add ix,ix	The value of IX is added to IX.	CN=0H	2	15
add ix,sp	The value of SP is added to IX.	CN=0H	2	15
add a,ixh undocumented	Adds IXH to A.	CN=0P/V=VHZS	2	8
add a,ixl undocumented	Adds IXL to A.	CN=0P/V=VHZS	2	8
add a,(ix+dd)	Adds the value pointed to by IX plus `dd` to A.	CN=0P/V=VHZS	3	19
add iy,bc	The value of BC is added to IY.	CN=0H	2	15
add iy,de	The value of DE is added to IY.	CN=0H	2	15
add iy,iy	The value of IY is added to IY.	CN=0H	2	15
add iy,sp	The value of SP is added to IY.	CN=0H	2	15
add a,iyh undocumented	Adds IYH to A.	CN=0P/V=VHZS	2	8
add a,iyl undocumented	Adds IYL to A.	CN=0P/V=VHZS	2	8
add a,(iy+dd)	Adds the value pointed to by IY plus `dd` to A.	CN=0P/V=VHZS	3	19