Browse code
Added repl project skeleton
Andrew Alderwick authored on 10/07/2021 20:50:13
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+( repl |
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+ |
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+ implemented: hardly anything |
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+ |
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+ yet to implement: practically everything |
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+) |
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+ |
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+( devices ) |
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+ |
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+|00 @System &vector $2 &pad $6 &r $2 &g $2 &b $2 |
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+|20 @Screen &vector $2 &width $2 &height $2 &pad $2 &x $2 &y $2 &addr $2 &color $1 |
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+|a0 @File &vector $2 &success $2 &offset $2 &pad $2 &name $2 &length $2 &load $2 &save $2 |
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+ |
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+( variables ) |
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+ |
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+|0000 |
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+ @font [ &height $1 &cells $1 ] |
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+ |
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+( init ) |
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+ |
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+|0100 ( -> ) |
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+ |
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+ ( theme ) |
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+ #0fa7 .System/r DEO2 |
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+ #0fa7 .System/g DEO2 |
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+ #0fa7 .System/b DEO2 |
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+ |
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+ ;font1 ;load-font JSR2 |
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+ ;body ;wrapped-write JSR2 |
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+ ;cr JSR2 |
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+ ;font2 ;load-font JSR2 |
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+ ;body ;wrapped-write JSR2 |
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+ ;cr JSR2 |
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+ ;font3 ;load-font JSR2 |
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+ ;body ;wrapped-write JSR2 |
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+ ;cr JSR2 |
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+ BRK |
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+ |
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+ ;body ;write JSR2 POP2 |
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+ #0000 .Screen/x DEO2 |
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+ #00 .font/height LDZ .Screen/y DEO2 |
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+ ;body ;write JSR2 POP2 |
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+ BRK |
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+ |
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+@load-font ( filename* -- ) |
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+ DUP2 .File/name DEO2 |
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+ ( find end of string for suffix ) |
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+ &loop |
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+ #0001 ADD2 |
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+ LDAk ,&loop JCN |
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+ ( suffix is cell size ) |
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+ #0001 SUB2 LDAk #0f AND .font/cells STZ |
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+ ( search backwards for number ) |
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+ &loop2 |
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+ #0001 SUB2 |
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+ LDAk DUP #2f GTH STH #3a LTH STHr #0101 NEQ2 ,&loop2 JCN |
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+ ( parse number to find font height ) |
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+ #0001 STH2 |
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+ &loop3 |
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+ LDAk DUPk #2f GTH STH #3a LTH STHr #0101 NEQ2 ,&end-loop3 JCN |
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+ #30 SUB STHr MULk STH ADDr #0a MUL STH POP |
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+ #0001 SUB2 |
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+ ,&loop3 JMP |
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+ &end-loop3 |
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+ STH2r POP .font/height STZ |
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+ POP |
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+ POP2 |
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+ |
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+ .font/cells LDZ DUP MUL #08 MUL #01 ADD #00 .File/length DEO2 |
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+ ;font-data .File/load DEO2 |
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+ |
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+ JMP2r |
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+ |
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+@get-word-width ( string* -- string* width* ) |
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+ DUP2 LIT2r 0000 |
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+ &loop |
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+ LDAk DUP #20 GTH ,¬-end JCN |
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+ POP |
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+ POP2 STH2r |
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+ JMP2r |
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+ |
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+ ¬-end |
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+ #00 SWP ;font-data ADD2 LDA |
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+ LITr 00 STH ADD2r |
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+ #0001 ADD2 |
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+ ,&loop JMP |
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+ |
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+@wrapped-write ( string* -- ) |
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+ LDAk ,¬-end JCN |
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+ POP2 |
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+ JMP2r |
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+ |
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+ ¬-end |
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+ ,get-word-width JSR .Screen/x DEI2 ADD2 .Screen/width DEI2 LTH2 ,&no-cr JCN |
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+ ,cr JSR |
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+ &no-cr |
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+ ,write JSR |
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+ ,wrapped-write JMP |
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+ |
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+@cr ( -- ) |
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+ #0000 .Screen/x DEO2 |
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+ .Screen/y DEI2 #00 .font/height LDZ ADD2 .Screen/y DEO2 |
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+ JMP2r |
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+ |
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+@write ( string* -- end-of-string* ) |
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+ LDAk DUP ,¬-end JCN |
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+ POP |
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+ JMP2r |
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+ |
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+ ¬-end |
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+ #00 SWP #00 .font/cells LDZ MUL2k MUL2 #0008 MUL2 #0100 ADD2 ( string* char* tile* ) |
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+ ;font-data ADD2 .Screen/addr DEO2 |
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+ .font/cells LDZ |
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+ &outer |
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+ DUP #00 EQU ,&end-outer JCN |
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+ .font/cells LDZ |
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+ &inner |
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+ DUP #00 EQU ,&end-inner JCN |
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+ #21 .Screen/color DEO |
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+ #0008 DUP2 |
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+ .Screen/x DEI2 ADD2 .Screen/x DEO2 |
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+ .Screen/addr DEI2 ADD2 .Screen/addr DEO2 |
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+ #01 SUB |
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+ ,&inner JMP |
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+ &end-inner |
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+ #00 .font/cells LDZ #fff8 MUL2 .Screen/x DEI2 ADD2 .Screen/x DEO2 |
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+ #0008 .Screen/y DEI2 ADD2 .Screen/y DEO2 |
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+ POP |
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+ #01 SUB |
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+ ,&outer JMP |
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+ &end-outer |
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+ #00 .font/cells LDZ #fff8 MUL2 .Screen/y DEI2 ADD2 .Screen/y DEO2 |
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+ POP |
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+ ;font-data ADD2 LDA #00 SWP .Screen/x DEI2 ADD2 .Screen/x DEO2 |
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+ LDAk STH |
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+ #0001 ADD2 |
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+ STHr #20 GTH ;write JCN2 |
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+ JMP2r |
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+ |
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+@body |
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+ 4927 6c6c 206d 616b 6520 6120 736f 756e |
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+ 6420 7468 6174 2773 2073 6f20 616c 6f6e |
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+ 6520 74 6861 7420 6e6f 206f 6e65 2063 |
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+ 616e 206d 6973 7320 6974 2c20 7468 6174 |
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+ 2077 686f 6576 6572 20 6865 6172 7320 |
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+ 6974 2077 696c 6c20 7765 6570 2069 6e20 |
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+ 7468 6569 7220 736f 756c 732c 20 616e |
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+ 6420 6865 6172 7468 7320 7769 6c6c 2073 |
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+ 6565 6d20 7761 726d 6572 2c20 61 6e64 |
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+ 2062 6569 6e67 2069 6e73 6964 6520 7769 |
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+ 6c6c 2073 6565 6d20 6265 7474 6572 20 |
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+ 746f 2061 6c6c 2077 686f 2068 6561 7220 |
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+ 6974 2069 6e20 7468 6520 6469 7374 616e |
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+ 7420 746f 776e 732e 20 $1 |
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+ |
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+@font1 |
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+ "projects/fonts/geneva24.uf3 $1 |
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+@font2 |
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+ "projects/fonts/venice14.uf2 $1 |
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+@font3 |
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+ "projects/fonts/orca8.uf1 $1 |
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+ "projects/fonts/left8.uf1 $1 |
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+ "projects/fonts/specter8.uf1 $1 |
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+ "projects/fonts/atari8.uf1 $1 |
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+ |
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+@font-data |