Earxtutapp2
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APPENDIX B: 680X0 INSTRUCTIONS This listing is based on ARTtbl's one. Big thanx a three cheers to him! =) It shows all 68030 instructions without FPU stuff. I just included it, because I feel every coder should have this list. +-----------------------------------------------------------------------------+ |ACBD |Add Decimal with Extend |useless.. | |ADD |Add | | |ADDA |Add Address | | |ADDI |Add Immediate | | |ADDQ |Add Quick | | |ADDX |Add with Extend |for working with big numbers | |AND |Logical AND | | |ANDI |Logical AND Immediate | | |ASL, ASR |Arithmetic Shift L/R | | |-----------|-----------------------------| | |Bcc |Branch Conditionally | | |BCHG |Test Bit and change | | |BFCLR |Test Bit Field and Clr |useful, but can be slow in loops | |BFEXTS |Signed Bit Field Extract | " | |BFEXTU |Unsigned Bit Field Extract | " | |BFFFO |Bit Field Find First One | " | |BFINS |Bit Field Insert | " | |BFSET |Test Bit Field and Set | " | |BFTST |Test Bit Field | " | |BKPT |Breakpoint |for debuuging purposes only | |BRA |Branch | | |BSET |Test Bit and Set | | |BSR |Branch to Subroutine |essential for structurising code | |BTST |Test Bit | | |-----------|-----------------------------| | |CALLM |Call Module |unsupported from 030 and higher? | |CAS |Compare and Swap Operands |useless, cos of low speed | |CAS2 |As above in Dual Mode | " | |CHK |Check Reg: Against Bound |no idea | |CHK2 |Check Against Upper and |no idea | | |Lower Bounds | | |CLR |Clear |replace with moveq or move | |CMP |Compare | | |CMPA |Compare Address | | |CMPI |Compare Immediate | | |CMPM |Compare Memory to Memory | | |CMP2 |Compare Register Against |no idea | | |Upper and Lower Bounds | | |-----------|-----------------------------| | |DBcc |Test Condition, Decrement |especially dbf/dbra is much used | | |and Branch |ideal for loops | |DIVS, DIVSL|Signed Divide |slow, use muls where possible | |DIVU, DIVUL|Unsigned Divide |slow, use mulu where possible | |-----------|-----------------------------| | |EOR |Exclusive Or | | |EORI |Exclusive Or Immediate | | |EXG |Exchange Registers | | |EXT, EXTB |Signed Extend | | |-----------|-----------------------------| | |ILLEGAL |Take Illegal Instruction Trap|for debugging purposes only | | | | | |-----------|-----------------------------| | |JMP |Jump | | |JSR |Jump to Subroutine |essential for structurising code | |-----------|-----------------------------| | |LEA |Load Effective Address | | |LINK |Link and Allocate |useful for recursive subrout-calls | |LSL, LSR |Logical Shift Left/Right | | |-----------|-----------------------------| | |MOVE |Move |unmissable :) | |MOVEA |Move Address | | |MOVE CCR |Move Condition Code Reg. | | |MOVE SR |Move Status Register | | |MOVE USP |Move User Stack Pointer | | |MOVEC |Move Control Register | | |MOVEM |Move Multiple |fast for moving large chunks of mem| |MOVEP |Move Peripheral | | |MOVEQ |Move Quick | | |MOVES |Move Alternate Address Space | | |MULS |Signed Multiply | | |MULU |Unsigned Multiply | | |-----------|-----------------------------| | |NBCD |Negate Decimal with Extend |useless | |NEG |Negate | | |NEGX |Negate with Extend | | |NOP |No Operation |no comment :) | |NOT |Logical Complement | | |-----------|-----------------------------| | |OR |Logical inclusive Or | | |ORI |Logical inclusive Immediate | | |-----------|-----------------------------| | |PACK |Pack BCD |useless | |PEA |Push Effective Address |fast version of move.l ..,-(sp) | |-----------|-----------------------------| | |RESET |Reset External Devices |resets our ATARI | |ROL, ROR |Rotate Left and Right | | |ROXL,ROXR |Rotate with Extend | | |RTD |Return and Deallocate | | |RTE |Return from Exception | | |RTM |Return from Module |unsupported from 030 and higher? | |RTR |Return from Restore Codes | | |RTS |Return from Subroutine |used in combination with BSR/JSR | |-----------|-----------------------------| | |SBCD |Subtr. Decimal with Extend |useless | |Scc |Set Conditionally | | |STOP |Stop |mhhh... don't use :) | |SUB |Subtract | | |SUBA |Subtract Address | | |SUBI |Subtract Immediate | | |SUBQ |Subtract Quick | | |SUBX |Subtract with Extend |for working with big numbers | |SWAP |Swap Register words | | |-----------|-----------------------------| | |TAS |Test Operand and Set |handy sometimes | |TRAP |Trap |calls the OS on our ATARI | |TRAPcc |Trap Conditionally |handy for debugging | |TRAPV |Trap on Overflow |handy for debugging | |TST |Test Operand |faster than cmpi #0,... | |-----------|-----------------------------| | |UNLK |Unlink |used in combination with link | |UNPK |Unpack |useless | +-----------------------------------------------------------------------------+
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