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https://github.com/hsoft/collapseos.git
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Pack core words a bit
This leaves space for xcomp-core which is growing.
This commit is contained in:
Virgil Dupras
parent
dfe474ca0e
commit
cbf5baf3b6
2
blk/001
2
blk/001
@ -7,7 +7,7 @@ MASTER INDEX
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200 Z80 assembler 260 Cross compilation
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280 Z80 boot code 350 ACIA driver
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370 SD Card driver 390 Cross-compiled core
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420 Core words 480 AT28 Driver
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428 Core words 480 AT28 Driver
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490 TRS-80 Recipe 520 Fonts
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550 TI-84+ Recipe
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10
blk/422
10
blk/422
@ -1,10 +0,0 @@
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: [ INTERPRET ; IMMEDIATE
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: ] R> DROP ;
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: LIT< WORD 34 , SCPY 0 C, ; IMMEDIATE
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: LITA 36 , , ;
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: '? WORD (find) ;
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: '
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'? (?br) [ 4 , ] EXIT
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LIT< (wnf) (find) DROP EXECUTE
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;
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: ['] ' LITA ; IMMEDIATE
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5
blk/423
5
blk/423
@ -1,5 +0,0 @@
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: COMPILE ' LITA ['] , , ; IMMEDIATE
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: [COMPILE] ' , ; IMMEDIATE
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: BEGIN H@ ; IMMEDIATE
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: AGAIN COMPILE (br) H@ - , ; IMMEDIATE
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: UNTIL COMPILE (?br) H@ - , ; IMMEDIATE
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13
blk/424
13
blk/424
@ -1,13 +0,0 @@
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: _ BEGIN LIT< ) WORD S= UNTIL ; IMMEDIATE
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40 CURRENT @ 4 - C!
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( Hello, hello, krkrkrkr... do you hear me?
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Ah, voice at last! Some lines above need comments
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BTW: Forth lines limited to 64 cols because of default
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input buffer size in Collapse OS
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40 is ASCII for '('. We do this to simplify XPACK's task of
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not mistakenly consider '(' definition as a comment.
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LIT<: 34 == litWord
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LITA: 36 == addrWord
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COMPILE: Tough one. Get addr of caller word (example above
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(br)) and then call LITA on it. )
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12
blk/426
12
blk/426
@ -1,12 +0,0 @@
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: ELSE ( a1 -- a2 | a1: IF cell a2: ELSE cell )
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COMPILE (br)
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2 ALLOT
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DUP H@ -^ SWAP ( a-H a )
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!
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H@ 2- ( push a. -2 for allot offset )
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; IMMEDIATE
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: [IF]
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IF EXIT THEN
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LIT< [THEN] BEGIN DUP WORD S= UNTIL DROP ;
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: [THEN] ;
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@ -8,6 +8,5 @@ itself to a full intepreter, which can then be relinked with
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the Relinker. There is no loader for these libraries because
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you will typically XPACK (B267) them.
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422 core 440 print
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442 fmt 447 readln
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453 blk
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430 core 442 fmt
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447 readln 453 blk
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27
blk/430
27
blk/430
@ -1,14 +1,15 @@
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: DOES>
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( Overwrite cellWord in CURRENT )
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( 43 == doesWord )
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43 CURRENT @ C!
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( When we have a DOES>, we forcefully place HERE to 4
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bytes after CURRENT. This allows a DOES word to use ","
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and "C," without messing everything up. )
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CURRENT @ 3 + HERE !
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( HERE points to where we should write R> )
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R> ,
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( We're done. Because we've popped RS, we'll exit parent
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definition )
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: [ INTERPRET ; IMMEDIATE
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: ] R> DROP ;
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: LIT< WORD 34 , SCPY 0 C, ; IMMEDIATE
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: LITA 36 , , ;
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: '? WORD (find) ;
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: '
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'? (?br) [ 4 , ] EXIT
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LIT< (wnf) (find) DROP EXECUTE
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;
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: ['] ' LITA ; IMMEDIATE
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: COMPILE ' LITA ['] , , ; IMMEDIATE
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: [COMPILE] ' , ; IMMEDIATE
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: BEGIN H@ ; IMMEDIATE
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: AGAIN COMPILE (br) H@ - , ; IMMEDIATE
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: UNTIL COMPILE (?br) H@ - , ; IMMEDIATE
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19
blk/431
19
blk/431
@ -1,8 +1,13 @@
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: VARIABLE CREATE 2 ALLOT ;
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: CONSTANT CREATE , DOES> @ ;
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: _ BEGIN LIT< ) WORD S= UNTIL ; IMMEDIATE
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40 CURRENT @ 4 - C!
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( Hello, hello, krkrkrkr... do you hear me?
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Ah, voice at last! Some lines above need comments
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BTW: Forth lines limited to 64 cols because of default
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input buffer size in Collapse OS
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( In addition to pushing H@ this compiles 2>R so that loop
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variables are sent to PS at runtime )
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: DO COMPILE 2>R H@ ; IMMEDIATE
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: LOOP COMPILE (loop) H@ - , ; IMMEDIATE
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: LEAVE R> R> DROP I 1- >R >R ;
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40 is ASCII for '('. We do this to simplify XPACK's task of
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not mistakenly consider '(' definition as a comment.
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LIT<: 34 == litWord
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LITA: 36 == addrWord
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COMPILE: Tough one. Get addr of caller word (example above
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(br)) and then call LITA on it. )
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21
blk/433
21
blk/433
@ -1,11 +1,12 @@
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: ROLL
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DUP NOT IF EXIT THEN
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1+ DUP PICK ( n val )
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SWAP 2 * (roll) ( val )
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SWAP DROP
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;
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: 2OVER 3 PICK 3 PICK ;
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: 2SWAP 3 ROLL 3 ROLL ;
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: ELSE ( a1 -- a2 | a1: IF cell a2: ELSE cell )
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COMPILE (br)
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2 ALLOT
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DUP H@ -^ SWAP ( a-H a )
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!
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H@ 2- ( push a. -2 for allot offset )
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; IMMEDIATE
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: [IF]
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IF EXIT THEN
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LIT< [THEN] BEGIN DUP WORD S= UNTIL DROP ;
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: [THEN] ;
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27
blk/434
27
blk/434
@ -1,13 +1,14 @@
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: MOVE ( a1 a2 u -- )
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( u ) 0 DO ( a1 a2 )
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SWAP C@+ ( a2 a1+1 x )
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ROT C!+ ( a1+1 a2+1 )
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LOOP 2DROP ;
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: MOVE- ( a1 a2 u -- )
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SWAP OVER + 1- ( a1 u a2+u-1 )
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ROT 2 PICK + 1- ( u a2+u-1 a1+u-1 )
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ROT ( u ) 0 DO ( a2 a1 )
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C@- ( a2 a1-1 x )
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ROT C!- ( a1-1 a2-1 ) SWAP ( a2 a1 )
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LOOP 2DROP ;
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: PREV 3 - DUP @ - ;
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: DOES>
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( Overwrite cellWord in CURRENT )
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( 43 == doesWord )
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43 CURRENT @ C!
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( When we have a DOES>, we forcefully place HERE to 4
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bytes after CURRENT. This allows a DOES word to use ","
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and "C," without messing everything up. )
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CURRENT @ 3 + HERE !
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( HERE points to where we should write R> )
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R> ,
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( We're done. Because we've popped RS, we'll exit parent
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definition )
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;
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21
blk/435
21
blk/435
@ -1,13 +1,8 @@
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: WORD(
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DUP 1- C@ ( name len field )
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127 AND ( 0x7f. remove IMMEDIATE flag )
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3 + ( fixed header len )
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-
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;
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: FORGET
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' DUP ( w w )
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( HERE must be at the end of prev's word, that is, at the
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beginning of w. )
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WORD( HERE ! ( w )
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PREV CURRENT !
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;
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: VARIABLE CREATE 2 ALLOT ;
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: CONSTANT CREATE , DOES> @ ;
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( In addition to pushing H@ this compiles 2>R so that loop
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variables are sent to PS at runtime )
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: DO COMPILE 2>R H@ ; IMMEDIATE
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: LOOP COMPILE (loop) H@ - , ; IMMEDIATE
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: LEAVE R> R> DROP I 1- >R >R ;
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17
blk/436
17
blk/436
@ -1,10 +1,11 @@
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( Drop RSP until I-2 == INTERPRET. )
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: EXIT!
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['] INTERPRET ( I )
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BEGIN ( I )
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DUP ( I I )
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R> DROP I 2- @ ( I I a )
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= UNTIL
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DROP
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: ROLL
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DUP NOT IF EXIT THEN
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1+ DUP PICK ( n val )
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SWAP 2 * (roll) ( val )
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SWAP DROP
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;
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: 2OVER 3 PICK 3 PICK ;
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: 2SWAP 3 ROLL 3 ROLL ;
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13
blk/437
Normal file
13
blk/437
Normal file
@ -0,0 +1,13 @@
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: MOVE ( a1 a2 u -- )
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( u ) 0 DO ( a1 a2 )
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SWAP C@+ ( a2 a1+1 x )
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ROT C!+ ( a1+1 a2+1 )
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LOOP 2DROP ;
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: MOVE- ( a1 a2 u -- )
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SWAP OVER + 1- ( a1 u a2+u-1 )
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ROT 2 PICK + 1- ( u a2+u-1 a1+u-1 )
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ROT ( u ) 0 DO ( a2 a1 )
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C@- ( a2 a1-1 x )
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ROT C!- ( a1-1 a2-1 ) SWAP ( a2 a1 )
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LOOP 2DROP ;
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: PREV 3 - DUP @ - ;
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13
blk/438
Normal file
13
blk/438
Normal file
@ -0,0 +1,13 @@
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: WORD(
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DUP 1- C@ ( name len field )
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127 AND ( 0x7f. remove IMMEDIATE flag )
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3 + ( fixed header len )
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-
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;
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: FORGET
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' DUP ( w w )
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( HERE must be at the end of prev's word, that is, at the
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beginning of w. )
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WORD( HERE ! ( w )
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PREV CURRENT !
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;
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10
blk/439
Normal file
10
blk/439
Normal file
@ -0,0 +1,10 @@
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( Drop RSP until I-2 == INTERPRET. )
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: EXIT!
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['] INTERPRET ( I )
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BEGIN ( I )
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DUP ( I I )
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R> DROP I 2- @ ( I I a )
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= UNTIL
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DROP
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;
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@ -21,7 +21,7 @@ CURRENT @ XCURRENT !
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( Update LATEST )
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PC ORG @ 8 + !
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," CURRENT @ HERE ! "
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422 459 XPACKR
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430 459 XPACKR
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," ' (key) 12 RAM+ ! "
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ORG @ 256 /MOD 2 PC! 2 PC!
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H@ 256 /MOD 2 PC! 2 PC!
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@ -27,7 +27,7 @@ CURRENT @ XCURRENT !
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(entry) _
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( Update LATEST )
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PC ORG @ 8 + !
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422 452 XPACKR ( core print fmt readln )
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430 452 XPACKR ( core fmt readln )
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123 132 XPACKR ( linker )
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," : _ ACIA$ RDLN$ (ok) ; _ "
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ORG @ 256 /MOD 2 PC! 2 PC!
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@ -74,7 +74,7 @@ CREATE ~FNT CPFNT3x5
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(entry) _
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( Update LATEST )
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PC ORG @ 8 + !
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422 451 XPACKR ( core print fmt readln )
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430 451 XPACKR ( core fmt readln )
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," : _ LCD$ KBD$ (ok) RDLN$ ; _ "
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ORG @ 0x100 - 256 /MOD 2 PC! 2 PC!
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H@ 256 /MOD 2 PC! 2 PC!
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@ -21,7 +21,7 @@ CURRENT @ XCURRENT !
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( Update LATEST )
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PC ORG @ 8 + !
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," CURRENT @ HERE ! "
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422 459 XPACKR ( core print readln fmt blk )
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430 459 XPACKR ( core readln fmt blk )
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499 500 XPACKR ( trs80.fs )
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( 0x0a == NLPTR. TRS-80 wants CR-only newlines )
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," : _ ['] CR 0x0a RAM+ ! BLK$ FD$ (ok) RDLN$ ; _ "
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