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(brainfuck.tal) Minor optimizations

This commit is contained in:
Devine Lu Linvega 2024-02-15 20:47:53 -08:00
parent a41f1ce3e8
commit 3bd7ea944f
1 changed files with 16 additions and 24 deletions
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40
projects/examples/exercises/brainfuck.tal
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@ -21,15 +21,11 @@
@<eval> ( -- )
;on-console/ptr LDA2 ;program
&while ( -- )
LDAk [ LIT "+ ] NEQ ?{
OVR2 STH2k LDA INC STH2r STA }
LDAk [ LIT "- ] NEQ ?{
OVR2 STH2k LDA #01 SUB STH2r STA }
LDAk [ LIT "+ ] NEQ ?{ OVR2 STH2k LDA INC STH2r STA }
LDAk [ LIT "- ] NEQ ?{ OVR2 STH2k LDA #01 SUB STH2r STA }
LDAk [ LIT "> ] NEQ ?{ SWP2 INC2 SWP2 }
LDAk [ LIT "< ] NEQ ?{
SWP2 #0001 SUB2 SWP2 }
LDAk [ LIT ". ] NEQ ?{
OVR2 LDA #18 DEO }
LDAk [ LIT "< ] NEQ ?{ SWP2 #0001 SUB2 SWP2 }
LDAk [ LIT ". ] NEQ ?{ OVR2 LDA #18 DEO }
LDAk [ LIT "[ ] NEQ ?{ goto-next }
LDAk [ LIT "] ] NEQ ?{ goto-back }
INC2 LDAk ?&while
@ -37,27 +33,23 @@
@goto-next ( mem* prg* -- )
OVR2 LDA ?{ JMP2r }
( depth ) [ LITr 00 ] INC2
[ LITr 00 ] INC2
&loop ( -- )
LDAk [ LIT "[ ] NEQ JMP
INCr LDAk [ LIT "] ] NEQ ?&>no-end
STHkr #00 EQU ?&end
LITr 01 SUBr &>no-end
INC2 LDAk ?&loop
&end ( depth )
POPr JMP2r
LDAk [ LIT "[ ] NEQ ?{ INCr }
LDAk [ LIT "] ] NEQ ?{
STHkr ?{ POPr JMP2r }
[ LITr 01 ] SUBr }
INC2 !&loop
@goto-back ( mem* prg* -- )
OVR2 LDA ?{ JMP2r }
( depth ) [ LITr 00 ] #0001 SUB2
[ LITr 00 ] #0001 SUB2
&loop ( -- )
LDAk [ LIT "] ] NEQ JMP
INCr LDAk [ LIT "[ ] NEQ ?&>no-end
STHkr #00 EQU ?&end
LITr 01 SUBr &>no-end
#0001 SUB2 LDAk ?&loop
&end ( depth )
POPr JMP2r
LDAk [ LIT "] ] NEQ ?{ INCr }
LDAk [ LIT "[ ] NEQ ?{
STHkr ?{ POPr JMP2r }
[ LITr 01 ] SUBr }
#0001 SUB2 !&loop
@program