Description: Apple II+ Mini-Assembler (2 of 4)
Header: Apple II+ Mini-Assembler (2 of 4)


 This article last reviewed: 21 September 1984

 The mnemonics and formats accepted by the mini assembler are the same as those
 listed by the 6502 Programmers Manual, with the following exceptions and
 differences:

 1. All imbedded blanks are ignored, except inside addresses.

 2. All addresses typed in are assumed to be in hex (rather than decimal or
   symbolic).  A preceding "$" (indicating hex rather than decimal or
 symbolic)
   is therefore optional, except that it should not precede the instruction
   address).

 3. Instructions that operate on the accumulator have a blank operand field
   instead of "A".

 4. When entering a branch instruction, the argument of the branch mnemonic
   should be the address of the target of the branch.  If the destination
   address is not known at the time the instruction is entered, simply enter
 an
   address that is in the neighborhood, and later re-enter the branch
   instruction with the correct target address. NOTE:  If a branch target is
   specified that is out of range, the mini-assembler will flag the address as
   being in error.

 5. The operand field of an instruction can only be followed by a comment
   field, which starts with a semicolon (";"). Obviously, the mini-assembler
   ignores the field and in fact will type over it when the line is typed over
   in disassembler format.

 6. Any page zero references will generate page zero instruction formats if
   such a mode exists.  There is no way to force a page zero address to be two
   bytes, even if the address has leading zeroes.

 In general, to specify an addressing type, simply enter it as it would be
 listed in the disassembly.  For information on the disassembler, see page 49
 of the Apple II Reference Manual.

 0000:                           **************************
 0000:                           *                        *
 0000:                           *       APPLE II         *
 0000:                           *   MINI-ASSEMBLER       *
 0000:                           *                        *
 0000:                           **************************
 002E:           FORMAT  EQU     $2E
 002F:           LENGTH  EQU     $2F
 0031:           MODE    EQU     $31
 0033:           PROMPT  EQU     $33
 0034:           YSAV    EQU     $34
 0035:           L       EQU     $35
 003A:           PCL     EQU     $3A
 003B:           PLH     EQU     $3B
 003D:           A1H     EQU     $3D
 003E:           A2L     EQU     $3E
 003F:           A2H     EQU     $3F
 0042:           A4L     EQU     $42
 0043:           A4H     EQU     $43
 0044:           FMT     EQU     $44
 0200:           IN      EQU     $200
 D64B:           NEW     EQU     $D64B
 F88E:           INSDS2  EQU     $F88E
 F8D0:           INSTDSP EQU     $F8D0
 F94A:           PRBL2   EQU     $F94A
 F953:           PCADJ   EQU     $F953
 F9B4:           CHAR1   EQU     $F9B4
 F9BA:           CHAR2   EQU     $F9BA
 F9C0:           MNEML   EQU     $F9C0
 FA00:           MNEMR   EQU     $FA00
 FC1A:           CURSUP  EQU     $FC1A
 FD67:           GETLNZ  EQU     $FD67
 FDED:           COUT    EQU     $FDED
 FE00:           BL1     EQU     $FE00
 FE78:           A1PCLP  EQU     $FE78
 FF3A:           BELL    EQU     $FF3A
 FFA7:           GETNUM  EQU     $FFA7
 FFBE:           TOSUB   EQU     $FFBE
 FFC7:           ZMODE   EQU     $FFC7
 FFCC:           CHRTBL  EQU     $FFCC



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