C/C++ Interactive Guide

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- 1 - A. Appendix_for_as6805_Frankenstein_Assembler A.1 Pseudo_Operations A.1.1 Standard_Pseudo_Operation_Mnemonics End END File Inclusion INCL INCLUDE If IF Else ELSE End If ENDI Equate EQU Set SET Org ORG Reserve Memory RESERVE RMB Define Byte Data BYTE DB FCB Define Word Data DW FDB WORD Define String Data FCC STRING Define Character Set Translation CHARSET Define Character Value CHARDEF CHD Use Character Translation CHARUSE A.1.2 Machine_Dependent_Pseudo_Operations A.1.2.1 Instruction_Set_Selection CPU string The instruction set can be specified in the source file with the CPU pseudooperation. The string, delimited by quotes or apostrophes, is scanned for a substring which selects which instruction set is used. When the program is invoked, this operation is performed on the name of the program, then the -p optional arguement, if any, and then any CPU statements. The last one selects which subset of the instructions the assembler will accept. The instruction set can be changed at any place in the source file. Instruction Set Substrings 68hc05 hc HC 146805 4 6305 3 6805 05 l05 L05 A.2 Instructions A.2.1 Instruction_List - 2 - Opcode Syntax Selection Criteria ADC '#' expr ADC expr DIRECT ADC expr EXTENDED ADC indexed INDEX0 ADC indexed INDEX1 ADC indexed INDEX2 ADD '#' expr ADD expr DIRECT ADD expr EXTENDED ADD indexed INDEX0 ADD indexed INDEX1 ADD indexed INDEX2 AND '#' expr AND expr DIRECT AND expr EXTENDED AND indexed INDEX0 AND indexed INDEX1 AND indexed INDEX2 ASL expr DIRECT ASL indexed INDEX0 ASL indexed INDEX1 ASLA ASLX ASR expr DIRECT ASR indexed INDEX0 ASR indexed INDEX1 ASRA ASRX BCC expr BCLR expr ',' expr BCS expr BEQ expr BHCC expr - 3 - Opcode Syntax Selection Criteria BHCS expr BHI expr BHS expr BIH expr BIL expr BIT '#' expr BIT expr DIRECT BIT expr EXTENDED BIT indexed INDEX0 BIT indexed INDEX1 BIT indexed INDEX2 BLO expr BLS expr BMC expr BMI expr BMS expr BNE expr BPL expr BRA expr BRCLR expr ',' expr ',' expr BRN expr BRSET expr ',' expr ',' expr BSET expr ',' expr BSR expr CLC CLI - 4 - Opcode Syntax Selection Criteria CLR expr DIRECT CLR indexed INDEX0 CLR indexed INDEX1 CLRA CLRX CMP '#' expr CMP expr DIRECT CMP expr EXTENDED CMP indexed INDEX0 CMP indexed INDEX1 CMP indexed INDEX2 COM expr DIRECT COM indexed INDEX0 COM indexed INDEX1 COMA COMX CPX '#' expr CPX expr DIRECT CPX expr EXTENDED CPX indexed INDEX0 CPX indexed INDEX1 CPX indexed INDEX2 DAA INSTDAA DEC expr DIRECT DEC indexed INDEX0 DEC indexed INDEX1 DECA DECX EOR '#' expr EOR expr DIRECT EOR expr EXTENDED EOR indexed INDEX0 EOR indexed INDEX1 EOR indexed INDEX2 - 5 - Opcode Syntax Selection Criteria INC expr DIRECT INC indexed INDEX0 INC indexed INDEX1 INCA INCX JMP expr DIRECT JMP expr EXTENDED JMP indexed INDEX0 JMP indexed INDEX1 JMP indexed INDEX2 JSR expr DIRECT JSR expr EXTENDED JSR indexed INDEX0 JSR indexed INDEX1 JSR indexed INDEX2 LDA '#' expr LDA expr DIRECT LDA expr EXTENDED LDA indexed INDEX0 LDA indexed INDEX1 LDA indexed INDEX2 LDX '#' expr LDX expr DIRECT LDX expr EXTENDED LDX indexed INDEX0 LDX indexed INDEX1 LDX indexed INDEX2 LSL expr DIRECT LSL indexed INDEX0 LSL indexed INDEX1 LSLA LSLX LSR expr DIRECT LSR indexed INDEX0 LSR indexed INDEX1 - 6 - Opcode Syntax Selection Criteria LSRA LSRX MUL INSTMUL NEG expr DIRECT NEG indexed INDEX0 NEG indexed INDEX1 NEGA NEGX NOP ORA '#' expr ORA expr DIRECT ORA expr EXTENDED ORA indexed INDEX0 ORA indexed INDEX1 ORA indexed INDEX2 ROL expr DIRECT ROL indexed INDEX0 ROL indexed INDEX1 ROLA ROLX ROR expr DIRECT ROR indexed INDEX0 ROR indexed INDEX1 RORA RORX RSP RTI RTS SBC '#' expr SBC expr DIRECT - 7 - Opcode Syntax Selection Criteria SBC expr EXTENDED SBC indexed INDEX0 SBC indexed INDEX1 SBC indexed INDEX2 SEC SEI STA expr DIRECT STA expr EXTENDED STA indexed INDEX0 STA indexed INDEX1 STA indexed INDEX2 STOP INSTSTWA STX expr DIRECT STX expr EXTENDED STX indexed INDEX0 STX indexed INDEX1 STX indexed INDEX2 SUB '#' expr SUB expr DIRECT SUB expr EXTENDED SUB indexed INDEX0 SUB indexed INDEX1 SUB indexed INDEX2 SWI TAX TST expr DIRECT TST indexed INDEX0 TST indexed INDEX1 TSTA TSTX TXA WAIT INSTSTWA - 8 - A.2.2 Selection_Criteria_Keywords DIRECT The direct addressing mode can be used if the expression has a value between 0 and 255. The expression will be treated as a two byte long value if it is not defined when the statement is processed in the first pass. EXTENDED The expression can be a 2 byte long value. INDEX0 The Indexed addressing mode with no offset can be used. INDEX1 The Indexed addressing mode with a one byte offset can be used. INDEX2 The Indexed addressing mode with two byte offset can be used. INSTSTWA The instruction is only available in the 146805, 6305, and 68hc05 instruction sets. INSTMUL The instruction is only available in the 68hc05 instruction set. INSTDAA The instruction is only available in the 6305 instruction set. A.2.3 Apostrophes The apostrophes in the syntax field are a notation used for the parser generator and are not put in the assembler source statement. A.3 Notes A.3.1 Bit_Numbers The bit number expression in the BSET, BCLR, BRCLR, BRSET operations has to have value defined when the instruction is read in the first pass. The value must be between 0 and 7. A.3.2 Indexed_Addressing The indexed addressing mode is represented in two ways. First, with no offset, the form ",X" is used. Second, the form "expression, X" is used for both the one and two byte offsets modes. The expression will be treated as a two byte long value if it is not defined when the - 9 - statement is processed in the first pass. A.3.3 Reserved_Symbols A.3.3.1 Machine_Dependent_Reserved_Symbols X x A.3.3.2 Standard_Reserved_Symbols AND DEFINED EQ GE GT HIGH LE LOW LT MOD NE NOT OR SHL SHR XOR and defined eq ge gt high le low lt mod ne not or shl shr xor CONTENTS A. Appendix for as6805 Frankenstein Assembler........... 1 A.1 Pseudo Operations............................... 1 A.2 Instructions.................................... 1 A.3 Notes........................................... 8 - i -