The AS8008 assembler supports the 8008 microprocessor using the traditional MCS-8 assembly language syntax.
8008 REGISTER SET
The following is a list of the 8008 registers used by AS8008:
a - 8-bit accumulator
b,c,d,e,h,l - 8-bit registers
8008 INSTRUCTION ADDRESSING MODES
The following tables list all 8008 mnemonics recognized by
the AS8008 assembler. The following list specifies the format
for each addressing mode supported by AS8008:
Instruction Argument Syntax:
REGM register a,b,c,d,e,h,l
or Memory (address is HL)
SRC REGM source
DST REGM destination
#data immediate byte data
addr call or jump address or label
port input/output port
n reset number
The terms data, addr, port, and n may all be expressions.
Note that not all addressing modes may be valid with every
instruction. Refer to the 8008 technical data for valid modes.
8008 INSTRUCTION SET
Single Register Instructions REGM != a or M
inr REGM dcr REGM
Mov Instructions SRC and DST not both = M
mov DST,SRC
Register or Memory to Accumulator Instructions
add REGM adc REGM
sub REGM sbb REGM
ana REGM xra REGM
ora REGM cmp REGM
Rotate Accumulator Instructions
rlc rrc
ral rar
Immediate Instructions
movi REGM,#data
adi #data aci #data
sui #data sbi #data
ani #data xri #data
ori #data cpi #data
Jump Instructions
jmp addr
jc addr jnc addr
jz addr jnz addr
jp addr jm addr
jpe addr jpo addr
Call Instructions
call addr
cc addr cnc addr
cz addr cnz addr
cp addr cm addr
cpe addr cpo addr
Return Instructions
rte
rc rnc
rz rnz
rp rm
rpe rpo
Reset Instruction
rst n 0 <= n <= 7
Input/Output Instructions
in port 0 <= port <= 7
out port 8 <= port <= 31
Halt and No-Operation Instruction
hlt
nop
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