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Limited push/pop in calc.tal

This commit is contained in:
neauoire 2021-09-19 08:25:23 -07:00
parent 84513d738d
commit 781344268f
1 changed files with 14 additions and 11 deletions
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17
projects/software/calc.tal
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@ -6,8 +6,7 @@
%<< { LTH2 } %>> { GTH2 } %== { EQU2 } %!! { NEQ2 }
%2* { #10 SFT }
%4/ { #02 SFT }
%4* { #20 SFT }
%4* { #20 SFT } %4/ { #02 SFT }
%2** { #10 SFT2 } %2// { #01 SFT2 }
%4** { #20 SFT2 }
%8** { #30 SFT2 } %8// { #03 SFT2 }
@ -164,10 +163,14 @@ BRK
POP2
.input-frame/x LDZ2 #0008 ++ -- 10// NIP
DUP #01 ! ,&no-push JCN
.input/value LDZ2 #0001 << ,&no-push-empty JCN
.input/value LDZ2 ;push JSR2
&no-push-empty
&no-push
DUP #02 ! ,&no-pop JCN
.stack/length LDZ #01 < ,&no-pop-empty JCN
;pop JSR2 POP2
&no-pop-empty
&no-pop
POP
@ -216,9 +219,10 @@ RTN
#08 #00
&loop
( color ) DUP .stack/length LDZ < STH
( value ) DUP 2* .stack/items + LDZ2 STH2
( y ) DUP TOS 8** #0070 SWP2 -- STH2
( x ) #0088 STH2r STH2r #01 ;draw-short JSR2
( x ) #0088 STH2r STH2r STHr ;draw-short JSR2
INC GTHk ,&loop JCN
POP2
@ -226,19 +230,18 @@ RTN
@draw-short ( x* y* value* color -- )
POP STH2
STH STH2
.Screen/y DEO2
.Screen/x DEO2
#04 #00
&loop
.Screen/x DEI2 #0008 -- .Screen/x DEO2
( value ) DUP STH2kr ROT 4* SFT2 #000f AND2
( value glyph ) 8** ;font-hex ++ .Screen/addr DEO2
#01 .Screen/sprite DEO
ROTr STHkr ROTr ROTr .Screen/sprite DEO
INC GTHk ,&loop JCN
POP2
POP2r
POP2r POPr
RTN