mirror of
https://github.com/fadden/6502bench.git
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297 lines
6.1 KiB
ArmAsm
297 lines
6.1 KiB
ArmAsm
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; Copyright 2020 faddenSoft. All Rights Reserved.
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; See the LICENSE.txt file for distribution terms (Apache 2.0).
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;
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; Assembler: Merlin 32
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; Macros for Rockwell extensions. We use the 3-arg format to
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; cut down on the code size.
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BBR MAC ;BBR bit,zp,label
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DFB ]1*16+$0f
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DFB ]2
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DFB ]3-*-1
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<<<
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BBS MAC ;BBS bit,zp,label
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DFB ]1*16+$8f
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DFB ]2
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DFB ]3-*-1
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<<<
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RMB MAC ;RMB bit,zp
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DFB ]1*16+$07
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DFB ]2
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<<<
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SMB MAC ;SMB bit,zp
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DFB ]1*16+$87
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DFB ]2
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<<<
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ORG $1000
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JSR PostBRK
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JSR PostRTI
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JSR PostRTS
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JSR PostJMPI
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JSR PostJMPX
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JSR PostSTP
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NOP
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NOP
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NOP
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BRK ZP ;$00
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PostBRK ORA (ZP,X)
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DFB $02,ZP
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DFB $03
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TSB ZP
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ORA ZP
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ASL ZP
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RMB 0;ZP
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PHP
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ORA #ZP
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ASL
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DFB $0B
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TSB: ABS
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ORA: ABS
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ASL: ABS
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BBR 0;ZP;PostBBR0
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PostBBR0 BPL PostBPL ;$10
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PostBPL ORA (ZP),Y
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ORA (ZP)
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DFB $13
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TRB ZP
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ORA ZP,X
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ASL ZP,X
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RMB 1;ZP
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CLC
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ORA: ABS,Y
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INC
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DFB $1B
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TRB: ABS
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ORA: ABS,X
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ASL: ABS,X
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BBR 1;ZP;PostBBR1
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PostBBR1 JSR ABS ;$20
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AND (ZP,X)
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DFB $22,ZP
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DFB $23
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BIT ZP
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AND ZP
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ROL ZP
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RMB 2;ZP
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PLP
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AND #ZP
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ROL
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DFB $2B
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BIT: ABS
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AND: ABS
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ROL: ABS
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BBR 2;ZP;PostBBR2
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PostBBR2 BMI PostBMI ;$30
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PostBMI AND (ZP),Y
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AND (ZP)
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DFB $33
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BIT ZP,X
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AND ZP,X
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ROL ZP,X
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RMB 3;ZP
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SEC
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AND: ABS,Y
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DEC
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DFB $3B
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BIT: ABS,X
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AND: ABS,X
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ROL: ABS,X
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BBR 3;ZP;PostBBR3
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PostBBR3 RTI ;$40
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PostRTI EOR (ZP,X)
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DFB $42,ZP
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DFB $43
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DFB $44,ZP
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EOR ZP
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LSR ZP
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RMB 4;ZP
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PHA
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EOR #ZP
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LSR
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DFB $4B
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JMP PostJMP
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PostJMP EOR: ABS
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LSR: ABS
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BBR 4;ZP;PostBBR4
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PostBBR4 BVC PostBVC ;$50
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PostBVC EOR (ZP),Y
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EOR (ZP)
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DFB $53
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DFB $54,ZP
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EOR ZP,X
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LSR ZP,X
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RMB 5;ZP
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CLI
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EOR: ABS,Y
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PHY
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DFB $5B
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DFB $5C,<ABS,>ABS
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EOR: ABS,X
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LSR: ABS,X
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BBR 5;ZP;PostBBR5
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PostBBR5 RTS ;$60
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PostRTS ADC (ZP,X)
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DFB $62,ZP
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DFB $63
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STZ ZP
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ADC ZP
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ROR ZP
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RMB 6;ZP
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PLA
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ADC #ZP
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ROR
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DFB $6B
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JMP (ABS)
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PostJMPI ADC: ABS
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ROR: ABS
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BBR 6;ZP;PostBBR6
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PostBBR6 BVS PostBVS ;$70
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PostBVS ADC (ZP),Y
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ADC (ZP)
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DFB $73
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STZ ZP,X
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ADC ZP,X
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ROR ZP,X
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RMB 7;ZP
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SEI
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ADC: ABS,Y
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PLY
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DFB $7B
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JMP (ABS,X)
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PostJMPX ADC: ABS,X
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ROR: ABS,X
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BBR 7;ZP;PostBBR7
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PostBBR7 BRA PostBRA ;$80
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PostBRA STA (ZP,X)
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DFB $82,ZP
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DFB $83
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STY ZP
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STA ZP
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STX ZP
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SMB 0;ZP
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DEY
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BIT #ZP
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TXA
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DFB $8B
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STY: ABS
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STA: ABS
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STX: ABS
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BBS 0;ZP;PostBBS0
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PostBBS0 BCC PostBCC ;$90
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PostBCC STA (ZP),Y
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STA (ZP)
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DFB $93
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STY ZP,X
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STA ZP,X
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STX ZP,Y
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SMB 1;ZP
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TYA
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STA: ABS,Y
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TXS
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DFB $9B
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STZ: ABS
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STA: ABS,X
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STZ: ABS,X
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BBS 1;ZP;PostBBS1
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PostBBS1 LDY #ZP ;$A0
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LDA (ZP,X)
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LDX #ZP
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DFB $A3
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LDY ZP
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LDA ZP
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LDX ZP
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SMB 2;ZP
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TAY
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LDA #ZP
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TAX
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DFB $AB
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LDY: ABS
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LDA: ABS
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LDX: ABS
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BBS 2;ZP;PostBBS2
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PostBBS2 BCS PostBCS ;$B0
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PostBCS LDA (ZP),Y
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LDA (ZP)
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DFB $B3
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LDY ZP,X
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LDA ZP,X
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LDX ZP,Y
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SMB 3;ZP
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CLV
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LDA: ABS,Y
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TSX
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DFB $BB
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LDY: ABS,X
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LDA: ABS,X
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LDX: ABS,Y
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BBS 3;ZP;PostBBS3
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PostBBS3 CPY #ZP ;$C0
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CMP (ZP,X)
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DFB $C2,ZP
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DFB $C3
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CPY ZP
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CMP ZP
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DEC ZP
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SMB 4;ZP
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INY
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CMP #ZP
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DEX
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WAI
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CPY: ABS
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CMP: ABS
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DEC: ABS
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BBS 4;ZP;PostBBS4
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PostBBS4 BNE PostBNE ;$D0
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PostBNE CMP (ZP),Y
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CMP (ZP)
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DFB $D3
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DFB $D4,ZP
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CMP ZP,X
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DEC ZP,X
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SMB 5;ZP
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CLD
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CMP: ABS,Y
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PHX
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STP
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PostSTP DFB $DC,<ABS,>ABS
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CMP: ABS,X
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DEC: ABS,X
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BBS 5;ZP;PostBBS5
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PostBBS5 CPX #ZP ;$E0
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SBC (ZP,X)
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DFB $E2,ZP
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DFB $E3
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CPX ZP
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SBC ZP
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INC ZP
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SMB 6;ZP
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INX
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SBC #ZP
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NOP
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DFB $EB
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CPX: ABS
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SBC: ABS
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INC: ABS
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BBS 6;ZP;PostBBS6
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PostBBS6 BEQ PostBEQ ;$F0
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PostBEQ SBC (ZP),Y
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SBC (ZP)
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DFB $F3
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DFB $F4,ZP
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SBC ZP,X
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INC ZP,X
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SMB 7;ZP
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SED
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SBC: ABS,Y
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PLX
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DFB $FB
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DFB $FC,<ABS,>ABS
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SBC: ABS,X
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INC: ABS,X
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BBS 7;ZP;PostBBS7
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PostBBS7 rts
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