Fixing forth comparisons thanks to reepca
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@ -27,6 +27,8 @@ Updated checksum for stage2 forth
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** Fixed
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Stack offset bug in stage2 forth was found and fixed by reepca in record time
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Fixed 2DUP and ?DUP in stage2 forth
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Swapped TRUE and FALSE values in stage2 forth to match http://lars.nocrew.org/dpans/dpans3.htm#3.1.3
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Adjusted order of comparisions to better match ans
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** Removed
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@ -174,7 +174,7 @@ Then we use our M0 Line macro assembler to convert our assembly into hex2 format
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Then we need to assemble that hex into our desired program:
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./bin/vm --rom roms/stage1_assembler-2 --tape_01 temp2 --tape_02 roms/forth --memory 48K
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roms/forth should with the sha256sum of 110dfd9cf2187ed8bf68a07510f054d96a55ec26377fe9d3a8e1f44ced2313f4
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roms/forth should with the sha256sum of a0d760e98534ec7abea6677e80fac98d2ec42d5bb1f02b1575122831fed46651
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Our forth will first attempt to evaluate any code in tape_01 and then evaluate any code that the user types in
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(Otherwise there is no way for a forth fan to have a chance against the lisp in terms of being able to bootstrap something cool)
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@ -366,11 +366,11 @@
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NOP ; Flags
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&Equal_Code ; Where assembly is Stored
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:Equal_Code
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POPR R1 R14 ; Get top of stack
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POPR R2 R14 ; Get second item on Stack
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FALSE R0 ; Assume comparision is True
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POPR R2 R14 ; Get top of stack
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POPR R1 R14 ; Get second item on Stack
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TRUE R0 ; Assume comparision is True
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CMPSKIP.E R1 R2 ; Check if they are equal and skip if they are
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TRUE R0 ; Looks like our assumption was wrong
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FALSE R0 ; Looks like our assumption was wrong
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PUSHR R0 R14 ; Store the result
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JSR_COROUTINE R11 ; NEXT
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@ -383,11 +383,11 @@
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NOP ; Flags
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&NEqual_Code ; Where assembly is Stored
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:NEqual_Code
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POPR R1 R14 ; Get top of stack
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POPR R2 R14 ; Get second item on Stack
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FALSE R0 ; Assume comparision is True
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POPR R2 R14 ; Get top of stack
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POPR R1 R14 ; Get second item on Stack
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TRUE R0 ; Assume comparision is True
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CMPSKIP.NE R1 R2 ; Check if they are not equal and skip if they are
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TRUE R0 ; Looks like our assumption was wrong
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FALSE R0 ; Looks like our assumption was wrong
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PUSHR R0 R14 ; Store the result
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JSR_COROUTINE R11 ; NEXT
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@ -400,11 +400,11 @@
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NOP ; Flags
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&Less_Code ; Where assembly is Stored
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:Less_Code
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POPR R1 R14 ; Get top of stack
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POPR R2 R14 ; Get second item on Stack
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FALSE R0 ; Assume comparision is True
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POPR R2 R14 ; Get top of stack
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POPR R1 R14 ; Get second item on Stack
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TRUE R0 ; Assume comparision is True
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CMPSKIP.L R1 R2 ; Check if less than and skip if they are
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TRUE R0 ; Looks like our assumption was wrong
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FALSE R0 ; Looks like our assumption was wrong
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PUSHR R0 R14 ; Store the result
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JSR_COROUTINE R11 ; NEXT
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@ -417,11 +417,11 @@
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NOP ; Flags
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&LEqual_Code ; Where assembly is Stored
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:LEqual_Code
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POPR R1 R14 ; Get top of stack
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POPR R2 R14 ; Get second item on Stack
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FALSE R0 ; Assume comparision is True
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POPR R2 R14 ; Get top of stack
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POPR R1 R14 ; Get second item on Stack
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TRUE R0 ; Assume comparision is True
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CMPSKIP.LE R1 R2 ; Check if they are less than or equal and skip if they are
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TRUE R0 ; Looks like our assumption was wrong
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FALSE R0 ; Looks like our assumption was wrong
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PUSHR R0 R14 ; Store the result
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JSR_COROUTINE R11 ; NEXT
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@ -434,11 +434,11 @@
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NOP ; Flags
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&Greater_Code ; Where assembly is Stored
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:Greater_Code
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POPR R1 R14 ; Get top of stack
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POPR R2 R14 ; Get second item on Stack
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FALSE R0 ; Assume comparision is True
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POPR R2 R14 ; Get top of stack
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POPR R1 R14 ; Get second item on Stack
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TRUE R0 ; Assume comparision is True
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CMPSKIP.G R1 R2 ; Check if greater and skip if they are
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TRUE R0 ; Looks like our assumption was wrong
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FALSE R0 ; Looks like our assumption was wrong
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PUSHR R0 R14 ; Store the result
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JSR_COROUTINE R11 ; NEXT
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@ -451,11 +451,11 @@
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NOP ; Flags
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&GEqual_Code ; Where assembly is Stored
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:GEqual_Code
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POPR R1 R14 ; Get top of stack
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POPR R2 R14 ; Get second item on Stack
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FALSE R0 ; Assume comparision is True
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POPR R2 R14 ; Get top of stack
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POPR R1 R14 ; Get second item on Stack
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TRUE R0 ; Assume comparision is True
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CMPSKIP.GE R1 R2 ; Check if they are equal and skip if they are
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TRUE R0 ; Looks like our assumption was wrong
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FALSE R0 ; Looks like our assumption was wrong
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PUSHR R0 R14 ; Store the result
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JSR_COROUTINE R11 ; NEXT
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@ -1,6 +1,6 @@
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8f465d3ec1cba00a7d024a1964e74bb6d241f86a73c77d95d8ceb10d09c8f7b9 roms/CAT
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59f0502748af32e3096e026a95e77216179cccfe803a05803317414643e2fcec roms/DEHEX
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110dfd9cf2187ed8bf68a07510f054d96a55ec26377fe9d3a8e1f44ced2313f4 roms/forth
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a0d760e98534ec7abea6677e80fac98d2ec42d5bb1f02b1575122831fed46651 roms/forth
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4c146297da8c672955698a82207295b28feb389c9856a2c6ea6a60ce7e84260a roms/lisp
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2b9727381aec15a504c0898189fbc2344209d8e04451e3fa5d743e08e38f64cf roms/M0
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24a4d74eb2eb7a82e68335643855658b27b5a6c3b13db473539f3e08d6f26ceb roms/SET
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