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Fixed the arithmetic order issue found by reepca

This commit is contained in:
Jeremiah Orians 2017-06-15 16:36:05 -04:00
parent 41d3ebb643
commit 9e2d807553
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GPG Key ID: 7457821534D2ACCD
4 changed files with 6 additions and 5 deletions
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1
CHANGELOG.org
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@ -23,6 +23,7 @@ Added DP! to stage2 forth
** Changed
Extended VPATH in makefile to shorten dependency names
Updated checksum for stage2 forth
Reversed the order of operands in stage2 forth arithmetic
** Fixed
Stack offset bug in stage2 forth was found and fixed by reepca in record time

2
bootstrapping Steps.org
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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 a0d760e98534ec7abea6677e80fac98d2ec42d5bb1f02b1575122831fed46651
roms/forth should with the sha256sum of 82e88791a784d9633a457e5cabbed5383e6c4f54d0711428c034c4ae2424fc21
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)

6
stage2/forth.s
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@ -293,7 +293,7 @@
:Sub_Code
POPR R0 R14 ; Get top of stack
POPR R1 R14 ; Get second item on Stack
SUB R0 R0 R1 ; Perform the subtraction
SUB R0 R1 R0 ; Perform the subtraction
PUSHR R0 R14 ; Store the result
JSR_COROUTINE R11 ; NEXT
@ -338,7 +338,7 @@
:DIV_Code
POPR R0 R14 ; Get top of stack
POPR R1 R14 ; Get second item on Stack
DIV R0 R0 R1 ; Perform division and keep top half
DIV R0 R1 R0 ; Perform division and keep top half
PUSHR R0 R14 ; Store the result
JSR_COROUTINE R11 ; NEXT
@ -353,7 +353,7 @@
:MOD_Code
POPR R0 R14 ; Get top of stack
POPR R1 R14 ; Get second item on Stack
MOD R0 R0 R1 ; Perform division and keep remainder
MOD R0 R1 R0 ; Perform division and keep remainder
PUSHR R0 R14 ; Store the result
JSR_COROUTINE R11 ; NEXT

2
test/SHA256SUMS
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@ -1,6 +1,6 @@
8f465d3ec1cba00a7d024a1964e74bb6d241f86a73c77d95d8ceb10d09c8f7b9 roms/CAT
59f0502748af32e3096e026a95e77216179cccfe803a05803317414643e2fcec roms/DEHEX
a0d760e98534ec7abea6677e80fac98d2ec42d5bb1f02b1575122831fed46651 roms/forth
82e88791a784d9633a457e5cabbed5383e6c4f54d0711428c034c4ae2424fc21 roms/forth
4c146297da8c672955698a82207295b28feb389c9856a2c6ea6a60ce7e84260a roms/lisp
2b9727381aec15a504c0898189fbc2344209d8e04451e3fa5d743e08e38f64cf roms/M0
24a4d74eb2eb7a82e68335643855658b27b5a6c3b13db473539f3e08d6f26ceb roms/SET