updated ROM binaries, explained all similarities longer than 3 bytes

strings/018DA602

@@ -0,0 +1,3 @@
+$01 + STA $02A6 (PAL/NTSC flag)
+
+Instruction and a part (storing data into a decumented variable). Not copyrightable.

strings/02A9018D

@@ -0,0 +1,3 @@
+$02 + LDA #$01 + STA (address does not match)
+
+Instruction + some parts. Not copyrightable.

strings/02A97F8D

@@ -0,0 +1,3 @@
+$02 + LDA #$7F + STA (address does not match)
+
+Instruction + some parts. Not copyrightable.

strings/034C09F4

@@ -0,0 +1,3 @@
+$03 + JMP $F409
+
+Instruction + some part. Not copyrightable.

strings/036C0080

@@ -0,0 +1,3 @@
+$03 + JMP ($8000) (jump via cartridge vector)
+
+Instruction (jump via a documented vector) + some part. Not copyrightable.

strings/036C028020

@@ -0,0 +1,3 @@
+$03 + JMP ($8002) (cartridge vector) + JSR (address does not match, part of other branch)
+
+Instruction and some parts. Not copyrightable.

strings/036C1403

@@ -0,0 +1,3 @@
+$03 + JMP ($0314) (jump via CINV)
+
+Instruction (jump via documented vector) + some part. Not copyrightable.

strings/08A90020

@@ -0,0 +1,3 @@
+PHP + LDA #$00 + JSR (address does not match)
+
+Two very simple instructions (one without argument, second zeroing a register) + a part. Not creative - not copyrightable.

strings/20E1FFB0

@@ -0,0 +1,3 @@
+JSR $FFE1 (STOP routine jumptable address) + BCS (offset does not match)
+
+Instruction (call of documented subroutine) and a half - not copyrightable.

strings/6031EA66FE47FE4AF391F20EF250F233F357F1CAF1EDF63EF12FF366FEA5F4EDF5

@@ -0,0 +1,7 @@
+RTS (from previous routine) + a list of vectors to be copied starting from $0314
+
+Values of the vectors are already present in many autostart software - as it often overrides them,
+sometimes changing one to trigger autostart (one of the possible techniques). We have to use the same
+vector values to be compatible (in fact, it even complicates our implementation) - see *.interop files
+for more details.
+

strings/608D850260

@@ -0,0 +1,5 @@
+RTS (from previous routine) + STA $0285 (TIMOUT variable) + RTS
+
+SETTMO routine (+ RTS from previous one). There really is just one sane way to
+implement a subroutine storing accumulator in a fixed memory location.
+Not creative - not copyrightable.

strings/60A5BAC902D0

@@ -0,0 +1,4 @@
+RTS (from previous routine) + LDA $BA (current device number) + CMP $02 + BNE (offset does not match)
+
+Routine starts by checking whether the device is RS-232 - nothing creative, not copyrightable.
+

strings/60AA20

@@ -0,0 +1,3 @@
+RTS (from previous routine) + TAX + JSR (address does not match)
+
+Routine starting from TAX + some subroutine jump. Not copyrightable.

strings/60C3C2CD3830

@@ -1,6 +1,6 @@
-CBM80 cartridge signature
+RTS + CBM80 PETSCII string
 
-This is the string used to compare with the signature block of
+CBM80 is the string used to compare with the signature block of
 a cartridge. It is required for interoperability with C64 cartridges,
 and the requirement for this string is explicit, and is well documented,
 including the string itself, in many places, such as:

strings/6C1A036C1C036C1E036C20036C22036C24036C26034C

@@ -0,0 +1 @@
+This is a part of Kernal jumptable - series of jumps, sometimes to the well known addreses (or through documented vectors). No business logic, part of the Kernal API itself - not copyrightable.

strings/6C28036C2A036C2C034C

@@ -0,0 +1 @@
+This is a part of Kernal jumptable - series of jumps, sometimes to the well known addreses (or through documented vectors). No business logic, part of the Kernal API itself - not copyrightable.

strings/ADA602F0

@@ -0,0 +1,3 @@
+LDA $02A6 (PALNTSC) + BEQ (offset does not match)
+
+Instruction (read of a documented routine) + a half - not copyrightable.

strings/B8D0034C

@@ -0,0 +1,3 @@
+$B8 + BNE (offset match) + JMP (address does not match)
+
+Instruction + some parts. Not copyrightable.

strings/C39914038810

@@ -0,0 +1,3 @@
+$C3 + STA $0314, Y + DEY + BPL (offset does not match)
+
+Part of the loop processing a documented array, but only two instructions fully match. Nothing creative - not copyrightable.

strings/DD09208D00DD

@@ -0,0 +1,5 @@
+$DD + ORA #$20 + STA $DD00
+
+$DD00 is a hardware register, where one typically set/unset/read individual bits.
+Having a set of trivial helper subroutines to set/clear individual bits (or groups of bits) is an obvious solution (thus not copyrightable), some similarities are unevitable.
+Besides, in this case (since the similarity does not even cover a single subroutine from start to end) it is clear that the similar code actually performs slightly different actions.

strings/DD29DF8D00DD

@@ -0,0 +1,5 @@
+$DD + AND #$DF + STA $DD00
+
+$DD00 is a hardware register, where one typically set/unset/read individual bits.
+Having a set of trivial helper subroutines to set/clear individual bits (or groups of bits) is an obvious solution (thus not copyrightable), some similarities are unevitable.
+Besides, in this case (since the similarity does not even cover a single subroutine from start to end) it is clear that the similar code actually performs slightly different actions.

strings/DD29DF8D00DD60

@@ -0,0 +1,5 @@
+$DD + AND #$DF + STA $DD00 + RTS
+
+$DD00 is a hardware register, where one typically set/unset/read individual bits.
+Having a set of trivial helper subroutines to set/clear individual bits (or groups of bits) is an obvious solution (thus not copyrightable), some similarities are unevitable.
+Besides, in this case (since the similarity does not even cover a single subroutine from start to end) it is clear that the similar code actually performs slightly different actions.

strings/F64C54F6

@@ -0,0 +1,3 @@
+$F6 + JMP $F654
+
+Instruction and a part - not copyrightable.