Fixing forth comparisons thanks to reepca

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Jeremiah Orians 2017-06-15 06:33:45 -04:00
parent 54f4019767
commit 41d3ebb643
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4 changed files with 28 additions and 26 deletions

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@ -27,6 +27,8 @@ Updated checksum for stage2 forth
** Fixed
Stack offset bug in stage2 forth was found and fixed by reepca in record time
Fixed 2DUP and ?DUP in stage2 forth
Swapped TRUE and FALSE values in stage2 forth to match http://lars.nocrew.org/dpans/dpans3.htm#3.1.3
Adjusted order of comparisions to better match ans
** Removed

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@ -174,7 +174,7 @@ Then we use our M0 Line macro assembler to convert our assembly into hex2 format
Then we need to assemble that hex into our desired program:
./bin/vm --rom roms/stage1_assembler-2 --tape_01 temp2 --tape_02 roms/forth --memory 48K
roms/forth should with the sha256sum of 110dfd9cf2187ed8bf68a07510f054d96a55ec26377fe9d3a8e1f44ced2313f4
roms/forth should with the sha256sum of a0d760e98534ec7abea6677e80fac98d2ec42d5bb1f02b1575122831fed46651
Our forth will first attempt to evaluate any code in tape_01 and then evaluate any code that the user types in
(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 @@
NOP ; Flags
&Equal_Code ; Where assembly is Stored
:Equal_Code
POPR R1 R14 ; Get top of stack
POPR R2 R14 ; Get second item on Stack
FALSE R0 ; Assume comparision is True
POPR R2 R14 ; Get top of stack
POPR R1 R14 ; Get second item on Stack
TRUE R0 ; Assume comparision is True
CMPSKIP.E R1 R2 ; Check if they are equal and skip if they are
TRUE R0 ; Looks like our assumption was wrong
FALSE R0 ; Looks like our assumption was wrong
PUSHR R0 R14 ; Store the result
JSR_COROUTINE R11 ; NEXT
@ -383,11 +383,11 @@
NOP ; Flags
&NEqual_Code ; Where assembly is Stored
:NEqual_Code
POPR R1 R14 ; Get top of stack
POPR R2 R14 ; Get second item on Stack
FALSE R0 ; Assume comparision is True
POPR R2 R14 ; Get top of stack
POPR R1 R14 ; Get second item on Stack
TRUE R0 ; Assume comparision is True
CMPSKIP.NE R1 R2 ; Check if they are not equal and skip if they are
TRUE R0 ; Looks like our assumption was wrong
FALSE R0 ; Looks like our assumption was wrong
PUSHR R0 R14 ; Store the result
JSR_COROUTINE R11 ; NEXT
@ -400,11 +400,11 @@
NOP ; Flags
&Less_Code ; Where assembly is Stored
:Less_Code
POPR R1 R14 ; Get top of stack
POPR R2 R14 ; Get second item on Stack
FALSE R0 ; Assume comparision is True
POPR R2 R14 ; Get top of stack
POPR R1 R14 ; Get second item on Stack
TRUE R0 ; Assume comparision is True
CMPSKIP.L R1 R2 ; Check if less than and skip if they are
TRUE R0 ; Looks like our assumption was wrong
FALSE R0 ; Looks like our assumption was wrong
PUSHR R0 R14 ; Store the result
JSR_COROUTINE R11 ; NEXT
@ -417,11 +417,11 @@
NOP ; Flags
&LEqual_Code ; Where assembly is Stored
:LEqual_Code
POPR R1 R14 ; Get top of stack
POPR R2 R14 ; Get second item on Stack
FALSE R0 ; Assume comparision is True
POPR R2 R14 ; Get top of stack
POPR R1 R14 ; Get second item on Stack
TRUE R0 ; Assume comparision is True
CMPSKIP.LE R1 R2 ; Check if they are less than or equal and skip if they are
TRUE R0 ; Looks like our assumption was wrong
FALSE R0 ; Looks like our assumption was wrong
PUSHR R0 R14 ; Store the result
JSR_COROUTINE R11 ; NEXT
@ -434,11 +434,11 @@
NOP ; Flags
&Greater_Code ; Where assembly is Stored
:Greater_Code
POPR R1 R14 ; Get top of stack
POPR R2 R14 ; Get second item on Stack
FALSE R0 ; Assume comparision is True
POPR R2 R14 ; Get top of stack
POPR R1 R14 ; Get second item on Stack
TRUE R0 ; Assume comparision is True
CMPSKIP.G R1 R2 ; Check if greater and skip if they are
TRUE R0 ; Looks like our assumption was wrong
FALSE R0 ; Looks like our assumption was wrong
PUSHR R0 R14 ; Store the result
JSR_COROUTINE R11 ; NEXT
@ -451,11 +451,11 @@
NOP ; Flags
&GEqual_Code ; Where assembly is Stored
:GEqual_Code
POPR R1 R14 ; Get top of stack
POPR R2 R14 ; Get second item on Stack
FALSE R0 ; Assume comparision is True
POPR R2 R14 ; Get top of stack
POPR R1 R14 ; Get second item on Stack
TRUE R0 ; Assume comparision is True
CMPSKIP.GE R1 R2 ; Check if they are equal and skip if they are
TRUE R0 ; Looks like our assumption was wrong
FALSE R0 ; Looks like our assumption was wrong
PUSHR R0 R14 ; Store the result
JSR_COROUTINE R11 ; NEXT

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@ -1,6 +1,6 @@
8f465d3ec1cba00a7d024a1964e74bb6d241f86a73c77d95d8ceb10d09c8f7b9 roms/CAT
59f0502748af32e3096e026a95e77216179cccfe803a05803317414643e2fcec roms/DEHEX
110dfd9cf2187ed8bf68a07510f054d96a55ec26377fe9d3a8e1f44ced2313f4 roms/forth
a0d760e98534ec7abea6677e80fac98d2ec42d5bb1f02b1575122831fed46651 roms/forth
4c146297da8c672955698a82207295b28feb389c9856a2c6ea6a60ce7e84260a roms/lisp
2b9727381aec15a504c0898189fbc2344209d8e04451e3fa5d743e08e38f64cf roms/M0
24a4d74eb2eb7a82e68335643855658b27b5a6c3b13db473539f3e08d6f26ceb roms/SET