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https://github.com/a2-4am/passport.git
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shave some bytes
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4am
parent
8edd3da266
commit
d8c9f21877
@ -4,17 +4,15 @@
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; that indicate structural copy protection
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; but don't require any patches
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;-------------------------------
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!zone {
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;-------------------------------
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; RWTS "LSR $6A" identification
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; disk allows either $D4 or $D5 for the
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; first address prologue nibble
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;-------------------------------
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bit gMode ; nothing to do here in verify mode
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bmi +
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jmp .exit
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-
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_rwtslog_start
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bit gMode ; nothing to do here in verify mode
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bmi @lsr6a_start
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jmp _rwtslog_end
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;
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; Some purely local utility functions here (out of execution path)
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; to reduce duplicated code
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;
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@compare_lsr6a
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ldy #$0A
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jsr compare
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!byte $BD,$8C,$C0
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@ -23,26 +21,44 @@
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!byte WILDCARD,$6A
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!byte $D0,$EF
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rts
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+
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@compare_bne0
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ldy #$09
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jsr compare
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!byte $BD,$8C,$C0
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!byte $10,$FB
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!byte $C9,WILDCARD
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!byte $D0,$00
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rts
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;-------------------------------
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; RWTS "LSR $6A" identification
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; disk allows either $D4 or $D5 for the
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; first address prologue nibble
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;-------------------------------
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@lsr6a_start
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; DOS 3.3 variant
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lda #$03
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ldx #$4F ; T00,S03,$4F
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jsr -
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bcc .yeslsr ; passport-test-suite/The Seasons.woz [C=0] matches
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lda #$03 ; if T00,S03,$4F ==
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ldx #$4F
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jsr @compare_lsr6a
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bcc @print_lsr6a ; passport-test-suite/The Seasons.woz [C=0] matches
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; RDOS variant
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ldx #$4D ; T00,S03,$4D
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jsr -
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bcc .yeslsr ; passport-test-suite/Roadwar 2000.woz [C=0] matches
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ldx #$4D ; or T00,S03,$4D ==
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jsr @compare_lsr6a
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bcc @print_lsr6a ; passport-test-suite/Roadwar 2000.woz [C=0] matches
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; Pascal variant
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lda #$0D
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ldx #$05 ; T00,S0D,$05
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jsr -
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bcs .endlsr ; passport-test-suite/GATO v1.3.woz [C=0] matches
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.yeslsr
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ldx #$05 ; oro T00,S0D,$05 ==
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jsr @compare_lsr6a
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bcs @lsr6a_end ; passport-test-suite/GATO v1.3.woz [C=0] matches
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@print_lsr6a
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jsr PrintByID
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!byte s_lsr6a
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inc gPatchCount
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.endlsr
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@lsr6a_end
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;-------------------------------
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; RWTS "CMP #$08 / BCS" identification
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@ -53,7 +69,7 @@
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lda #$03
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ldx #$8B
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ldy #$15
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jsr compare ; if T00,S03,$8B ==
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jsr compare ; if T00,S03,$8B ==
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!byte $BD,$8C,$C0
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!byte $10,$FB
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!byte $C9,$DE
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@ -66,11 +82,12 @@
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!byte $EA
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!byte $18
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!byte $60
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bcc .yesbcs ; passport-test-suite/The Seasons.woz [C=0] matches
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bcc @print_bcs08 ; passport-test-suite/The Seasons.woz [C=0] matches
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; RDOS variant
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ldx #$89
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ldy #$11
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jsr compare ; or T00,S03,$89 ==
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jsr compare ; or T00,S03,$89 ==
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!byte $BD,$8C,$C0
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!byte $10,$FB
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!byte $C9,$DE
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@ -80,12 +97,13 @@
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!byte $BD,$8C,$C0
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!byte $C9,$80
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!byte $B0
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bcs .endbcs ; passport-test-suite/Roadwar 2000.woz [C=0] matches
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.yesbcs
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bcs @bcs08_end ; passport-test-suite/Roadwar 2000.woz [C=0] matches
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@print_bcs08
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jsr PrintByID
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!byte s_bcs08
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inc gPatchCount
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.endbcs
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@bcs08_end
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;-------------------------------
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; RWTS "CMP / BNE 0" identification
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@ -93,28 +111,21 @@
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; for the first address epilogue nibble
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;-------------------------------
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; DOS 3.3 variant
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lda #$03
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lda #$03 ; if T00,S03,$8B ==
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ldx #$8B
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ldy #$09
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jsr compare ; if T00,S03,$8B ==
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!byte $BD,$8C,$C0
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!byte $10,$FB
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!byte $C9,WILDCARD
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!byte $D0,$00
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bcc .yesbne0 ; passport-test-suite/The Home Accountant.woz [C=0] matches
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jsr @compare_bne0
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bcc @print_bne0 ; passport-test-suite/The Home Accountant.woz [C=0] matches
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; David-DOS variant
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lda #$05
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jsr compare ; or T00,S05,$8B ==
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!byte $BD,$8C,$C0
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!byte $10,$FB
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!byte $C9,WILDCARD
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!byte $D0,$00
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bcs .endbne0 ; passport-test-suite/Horses.woz [C=0] matches
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.yesbne0
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lda #$05 ; or T00,S05,$8B ==
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jsr @compare_bne0
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bcs @bne0_end ; passport-test-suite/Horses.woz [C=0] matches
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@print_bne0
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jsr PrintByID
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!byte s_cmpbne0
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inc gPatchCount
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.endbne0
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@bne0_end
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;-------------------------------
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; RWTS "CMP / NOP NOP" identification
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@ -124,15 +135,14 @@
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lda #$03
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ldx #$95
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ldy #$09
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jsr compare ; if T00,S03,$95 ==
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jsr compare ; if T00,S03,$95 ==
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!byte $BD,$8C,$C0
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!byte $10,$FB
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!byte $C9,$AA
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!byte $EA,$EA
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bcs .endnopnop ; passport-test-suite/La Guillotine.woz [C=0] matches
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bcs _rwtslog_end ; passport-test-suite/La Guillotine.woz [C=0] matches
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jsr PrintByID
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!byte s_cmpnopnop
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inc gPatchCount
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.endnopnop
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.exit
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}
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_rwtslog_end
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