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Removing signed mode

This commit is contained in:
neauoire 2021-03-15 18:08:41 -07:00
parent 82d1c276f9
commit d848cc1f54
12 changed files with 67 additions and 55 deletions
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2
README.md
View File

@ -43,7 +43,7 @@ BRK
$loop NOP $loop NOP
( send ) DUP2 LDR =Console.char ( send ) DUP2 LDR =Console.char
( incr ) #0001 ADD2 ( incr ) #0001 ADD2
( loop ) DUP2 LDR #00 NEQ ^$loop MUL JMPS ( loop ) DUP2 LDR #00 NEQ ^$loop MUL JMP
POP2 POP2
RTN RTN

2
assembler.c
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@ -47,7 +47,7 @@ Program p;
char ops[][4] = { char ops[][4] = {
"BRK", "NOP", "LIT", "LDR", "STR", "JMP", "JSR", "RTN", "BRK", "NOP", "LIT", "LDR", "STR", "JMP", "JSR", "RTN",
"EQU", "NEQ", "GTH", "LTH", "AND", "XOR", "ROL", "ROR", "EQU", "NEQ", "GTH", "LTH", "AND", "XOR", "ROL", "ROR",
"POP", "DUP", "SWP", "OVR", "ROT", "---", "WSR", "RSW", "POP", "DUP", "SWP", "OVR", "ROT", "CLN", "WSR", "RSW",
"ADD", "SUB", "MUL", "DIV", "---", "---", "---", "---" "ADD", "SUB", "MUL", "DIV", "---", "---", "---", "---"
}; };

2
build.sh
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@ -20,5 +20,5 @@ cc -std=c89 -DDEBUG -Wall -Wno-unknown-pragmas -Wpedantic -Wshadow -Wextra -Werr
# cc uxn.c emulator.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -L/usr/local/lib -lSDL2 -o bin/emulator # cc uxn.c emulator.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -Wno-unknown-pragmas -L/usr/local/lib -lSDL2 -o bin/emulator
# run # run
./bin/assembler projects/software/left.usm bin/boot.rom ./bin/assembler projects/software/nasu.usm bin/boot.rom
./bin/emulator bin/boot.rom ./bin/emulator bin/boot.rom

2
projects/examples/dev.console.usm
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@ -14,7 +14,7 @@ BRK
$loop NOP $loop NOP
( send ) DUP2 LDR =Console.char ( send ) DUP2 LDR =Console.char
( incr ) #0001 ADD2 ( incr ) #0001 ADD2
( loop ) DUP2 LDR #00 NEQ ^$loop MUL JMPS ( loop ) DUP2 LDR #00 NEQ ^$loop MUL JMP
POP2 POP2
RTN RTN

6
projects/examples/dev.screen.usm
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@ -15,7 +15,7 @@
$draw-hor NOP $draw-hor NOP
( draw ) #01 =Screen.color ( draw ) #01 =Screen.color
( incr ) SWP2 #0002 ADD2 DUP2 =Screen.x SWP2 ( incr ) SWP2 #0002 ADD2 DUP2 =Screen.x SWP2
OVR2 OVR2 LTH2 ^$draw-hor SWP JMPS? OVR2 OVR2 LTH2 ^$draw-hor SWP JMP?
POP2 POP2 POP2 POP2
( draw ver line ) ( draw ver line )
@ -24,7 +24,7 @@
$draw-ver NOP $draw-ver NOP
( draw ) #02 =Screen.color ( draw ) #02 =Screen.color
( incr ) SWP2 #0002 ADD2 DUP2 =Screen.y SWP2 ( incr ) SWP2 #0002 ADD2 DUP2 =Screen.y SWP2
OVR2 OVR2 LTH2 ^$draw-ver SWP JMPS? OVR2 OVR2 LTH2 ^$draw-ver SWP JMP?
POP2 POP2 POP2 POP2
( draw blending modes ) ( draw blending modes )
@ -34,7 +34,7 @@
( move ) OVR #00 SWP #0008 MUL2 #0020 ADD2 =Sprite.x ( move ) OVR #00 SWP #0008 MUL2 #0020 ADD2 =Sprite.x
( draw ) OVR =Sprite.color ( draw ) OVR =Sprite.color
( incr ) SWP #01 ADD SWP ( incr ) SWP #01 ADD SWP
DUP2 LTH ^$draw-blends SWP JMPS? DUP2 LTH ^$draw-blends SWP JMP?
POP POP POP POP
BRK BRK

14
projects/examples/gui.editor.usm
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@ -104,7 +104,7 @@ RTN
( draw ) DUP2 LDR #00 SWP #0008 MUL2 ,font ADD2 =Sprite.addr ~label.color =Sprite.color ( draw ) DUP2 LDR #00 SWP #0008 MUL2 ,font ADD2 =Sprite.addr ~label.color =Sprite.color
( incr ) #0001 ADD2 ( incr ) #0001 ADD2
( incr ) ~Sprite.x #0007 ADD2 =Sprite.x ( incr ) ~Sprite.x #0007 ADD2 =Sprite.x
DUP2 LDR #00 NEQ ^$loop MUL JMPS DUP2 LDR #00 NEQ ^$loop MUL JMP
POP2 POP2
RTN RTN
@ -117,9 +117,9 @@ RTN
$hor NOP $hor NOP
( draw ) ~color =Screen.color ( draw ) ~color =Screen.color
( incr ) ~Screen.x #0001 ADD2 =Screen.x ( incr ) ~Screen.x #0001 ADD2 =Screen.x
~Screen.x ~rect.x2 LTH2 ^$hor MUL JMPS ~Screen.x ~rect.x2 LTH2 ^$hor MUL JMP
( incr ) ~Screen.y #0001 ADD2 =Screen.y ( incr ) ~Screen.y #0001 ADD2 =Screen.y
~Screen.y ~rect.y2 LTH2 ^$ver MUL JMPS ~Screen.y ~rect.y2 LTH2 ^$ver MUL JMP
RTN RTN
@ -130,13 +130,13 @@ RTN
( incr ) ~Screen.x #0001 ADD2 =Screen.x ( incr ) ~Screen.x #0001 ADD2 =Screen.x
( draw ) ~rect.y1 =Screen.y ~color =Screen.color ( draw ) ~rect.y1 =Screen.y ~color =Screen.color
( draw ) ~rect.y2 =Screen.y ~color =Screen.color ( draw ) ~rect.y2 =Screen.y ~color =Screen.color
~Screen.x ~rect.x2 LTH2 ^$hor MUL JMPS ~Screen.x ~rect.x2 LTH2 ^$hor MUL JMP
~rect.y1 =Screen.y ~rect.y1 =Screen.y
$ver NOP $ver NOP
( draw ) ~rect.x1 =Screen.x ~color =Screen.color ( draw ) ~rect.x1 =Screen.x ~color =Screen.color
( draw ) ~rect.x2 =Screen.x ~color =Screen.color ( draw ) ~rect.x2 =Screen.x ~color =Screen.color
( incr ) ~Screen.y #0001 ADD2 =Screen.y ( incr ) ~Screen.y #0001 ADD2 =Screen.y
~Screen.y ~rect.y2 #0001 ADD2 LTH2 ^$ver MUL JMPS ~Screen.y ~rect.y2 #0001 ADD2 LTH2 ^$ver MUL JMP
RTN RTN
@ -148,9 +148,9 @@ RTN
$hor NOP $hor NOP
( draw ) ~color =Sprite.color ( draw ) ~color =Sprite.color
( incr ) ~Sprite.x #0008 ADD2 =Sprite.x ( incr ) ~Sprite.x #0008 ADD2 =Sprite.x
~Sprite.x ~rect.x2 LTH2 ^$hor MUL JMPS ~Sprite.x ~rect.x2 LTH2 ^$hor MUL JMP
( incr ) ~Sprite.y #0008 ADD2 =Sprite.y ( incr ) ~Sprite.y #0008 ADD2 =Sprite.y
~Sprite.y ~rect.y2 LTH2 ^$ver MUL JMPS ~Sprite.y ~rect.y2 LTH2 ^$ver MUL JMP
RTN RTN

40
projects/software/left.usm
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@ -170,11 +170,11 @@ BRK
,$no-up ~Mouse.y #0008 GTH2 JMP2? ,$no-up ~Mouse.y #0008 GTH2 JMP2?
( decr ) ~scroll.y #00 ~scroll.y #0000 NEQ2 SUB2 =scroll.y ( decr ) ~scroll.y #00 ~scroll.y #0000 NEQ2 SUB2 =scroll.y
^$end JMPS ^$end JMP
$no-up $no-up
,$no-down ~Mouse.y ~Screen.height #0008 SUB2 LTH2 JMP2? ,$no-down ~Mouse.y ~Screen.height #0008 SUB2 LTH2 JMP2?
( incr ) ~scroll.y #0001 ADD2 =scroll.y ( incr ) ~scroll.y #0001 ADD2 =scroll.y
^$end JMPS ^$end JMP
$no-down $no-down
~Mouse.y #0008 SUB2 =scroll.y ~Mouse.y #0008 SUB2 =scroll.y
$end $end
@ -200,12 +200,12 @@ RTN
,$no-chord-cut ~Mouse.chord #01 NEQ JMP2? ,$no-chord-cut ~Mouse.chord #01 NEQ JMP2?
,cut JSR2 ,cut JSR2
( release ) #00 DUP =Mouse.state =Mouse.chord ( release ) #00 DUP =Mouse.state =Mouse.chord
^$end JMPS ^$end JMP
$no-chord-cut $no-chord-cut
,$no-chord-paste ~Mouse.chord #10 NEQ JMP2? ,$no-chord-paste ~Mouse.chord #10 NEQ JMP2?
,paste JSR2 ,paste JSR2
( release ) #00 DUP =Mouse.state =Mouse.chord ( release ) #00 DUP =Mouse.state =Mouse.chord
^$end JMPS ^$end JMP
$no-chord-paste $no-chord-paste
,$end ~Mouse.state #11 EQU JMP2? ,$end ~Mouse.state #11 EQU JMP2?
@ -214,7 +214,7 @@ RTN
( on drag ) ( on drag )
,find-selection JSR2 #0001 ADD2 =selection.to ,find-selection JSR2 #0001 ADD2 =selection.to
,clamp-selection JSR2 ,clamp-selection JSR2
^$end JMPS ^$end JMP
$no-drag $no-drag
( on click ) ( on click )
,find-selection JSR2 DUP2 =selection.from #0001 ADD2 =selection.to ,find-selection JSR2 DUP2 =selection.from #0001 ADD2 =selection.to
@ -231,7 +231,7 @@ RTN
,document.body =document.eof ,document.body =document.eof
$loop NOP $loop NOP
( incr ) ~document.eof #0001 ADD2 =document.eof ( incr ) ~document.eof #0001 ADD2 =document.eof
~document.eof LDR #00 NEQ ^$loop MUL JMPS ~document.eof LDR #00 NEQ ^$loop MUL JMP
RTN RTN
@ -258,7 +258,7 @@ RTN
$loop NOP $loop NOP
( move ) ~j ~i ADD2 LDR ~j STR ( move ) ~j ~i ADD2 LDR ~j STR
( incr ) ~j #0001 ADD2 =j ( incr ) ~j #0001 ADD2 =j
~j ~document.eof LTH2 ^$loop MUL JMPS ~j ~document.eof LTH2 ^$loop MUL JMP
~document.eof ~i SUB2 =document.eof ~document.eof ~i SUB2 =document.eof
RTN RTN
@ -270,7 +270,7 @@ RTN
$loop NOP $loop NOP
( move ) ~j ~i SUB2 LDR ~j STR ( move ) ~j ~i SUB2 LDR ~j STR
( decr ) ~j #0001 SUB2 =j ( decr ) ~j #0001 SUB2 =j
~j ~selection.from GTH2 ^$loop MUL JMPS ~j ~selection.from GTH2 ^$loop MUL JMP
~document.eof ~i ADD2 =document.eof ~document.eof ~i ADD2 =document.eof
RTN RTN
@ -299,7 +299,7 @@ RTN
~selection.from #0001 SUB2 LDR #0a EQU RTN? ~selection.from #0001 SUB2 LDR #0a EQU RTN?
~selection.from #0001 SUB2 LDR #0d EQU RTN? ~selection.from #0001 SUB2 LDR #0d EQU RTN?
( decr ) ~selection.from DUP2 =selection.to #0001 SUB2 =selection.from ( decr ) ~selection.from DUP2 =selection.to #0001 SUB2 =selection.from
~selection.from LDR #00 NEQ ^$loop MUL JMPS ~selection.from LDR #00 NEQ ^$loop MUL JMP
( clamp at document body ) ( clamp at document body )
~selection.from ,document.body GTH2 RTN? ~selection.from ,document.body GTH2 RTN?
,document.body DUP2 =selection.from #0001 ADD2 =selection.to ,document.body DUP2 =selection.from #0001 ADD2 =selection.to
@ -312,7 +312,7 @@ RTN
~selection.from LDR #0a EQU RTN? ~selection.from LDR #0a EQU RTN?
~selection.from LDR #0d EQU RTN? ~selection.from LDR #0d EQU RTN?
( incr ) ~selection.from #0001 ADD2 DUP2 #0001 ADD2 =selection.to =selection.from ( incr ) ~selection.from #0001 ADD2 DUP2 #0001 ADD2 =selection.to =selection.from
~selection.from LDR #00 NEQ ^$loop MUL JMPS ~selection.from LDR #00 NEQ ^$loop MUL JMP
( clamp at document body ) ( clamp at document body )
~selection.from ,document.eof LTH2 RTN? ~selection.from ,document.eof LTH2 RTN?
,document.eof #0001 SUB2 DUP2 =selection.from #0001 ADD2 =selection.to ,document.eof #0001 SUB2 DUP2 =selection.from #0001 ADD2 =selection.to
@ -327,7 +327,7 @@ RTN
,$end ~j LDR #20 EQU JMP2? ,$end ~j LDR #20 EQU JMP2?
,$end ~j LDR #0a EQU JMP2? ,$end ~j LDR #0a EQU JMP2?
,$end ~j LDR #0d EQU JMP2? ,$end ~j LDR #0d EQU JMP2?
~j ,document.body GTH2 ^$loop MUL JMPS ~j ,document.body GTH2 ^$loop MUL JMP
$end $end
( return ) ~j #0001 SUB2 ( return ) ~j #0001 SUB2
@ -341,7 +341,7 @@ RTN
,$end ~j LDR #20 EQU JMP2? ,$end ~j LDR #20 EQU JMP2?
,$end ~j LDR #0a EQU JMP2? ,$end ~j LDR #0a EQU JMP2?
,$end ~j LDR #0d EQU JMP2? ,$end ~j LDR #0d EQU JMP2?
~j ,document.body GTH2 ^$loop MUL JMPS ~j ,document.body GTH2 ^$loop MUL JMP
$end $end
( return ) ~j #0001 ADD2 ( return ) ~j #0001 ADD2
@ -354,7 +354,7 @@ RTN
( incr ) ~j #0001 ADD2 =j ( incr ) ~j #0001 ADD2 =j
,$end ~selection.from ~j SUB2 LDR #0a EQU JMP2? ,$end ~selection.from ~j SUB2 LDR #0a EQU JMP2?
,$end ~selection.from ~j SUB2 LDR #0d EQU JMP2? ,$end ~selection.from ~j SUB2 LDR #0d EQU JMP2?
~selection.from ~j SUB2 ,document.body GTH2 ^$loop MUL JMPS ~selection.from ~j SUB2 ,document.body GTH2 ^$loop MUL JMP
$end $end
( return ) ~j ( return ) ~j
@ -369,7 +369,7 @@ RTN
( incr ) ~pt.y #0001 ADD2 =pt.y ( incr ) ~pt.y #0001 ADD2 =pt.y
$no-space $no-space
( incr ) ~j #0001 ADD2 =j ( incr ) ~j #0001 ADD2 =j
~j LDR #00 NEQ ^$loop MUL JMPS ~j LDR #00 NEQ ^$loop MUL JMP
$end $end
( return ) ~j ( return ) ~j
@ -383,7 +383,7 @@ RTN
,$end ~j ~pt.x ADD2 LDR #0a EQU JMP2? ,$end ~j ~pt.x ADD2 LDR #0a EQU JMP2?
,$end ~j ~pt.x ADD2 LDR #0d EQU JMP2? ,$end ~j ~pt.x ADD2 LDR #0d EQU JMP2?
( incr ) ~pt.x #0001 ADD2 =pt.x ( incr ) ~pt.x #0001 ADD2 =pt.x
~pt.x ~position.x #0001 SUB2 LTH2 ^$loop MUL JMPS ~pt.x ~position.x #0001 SUB2 LTH2 ^$loop MUL JMP
$end $end
( return ) ~pt.x ADD2 ( return ) ~pt.x ADD2
@ -405,7 +405,7 @@ RTN
$loop NOP $loop NOP
~selection.from ~i ADD2 LDR ,clip.body ~i ADD2 STR ~selection.from ~i ADD2 LDR ,clip.body ~i ADD2 STR
( incr ) ~i #0001 ADD2 =i ( incr ) ~i #0001 ADD2 =i
~i ~j LTH2 ^$loop MUL JMPS ~i ~j LTH2 ^$loop MUL JMP
RTN RTN
@ -417,7 +417,7 @@ RTN
$loop NOP $loop NOP
,clip.body ~i ADD2 LDR ~selection.from ~i ADD2 STR ,clip.body ~i ADD2 LDR ~selection.from ~i ADD2 STR
( incr ) ~i #0001 ADD2 =i ( incr ) ~i #0001 ADD2 =i
~i ~j LTH2 ^$loop MUL JMPS ~i ~j LTH2 ^$loop MUL JMP
RTN RTN
@ -512,7 +512,7 @@ RTN
( incr ) ~j #0001 ADD2 =j ( incr ) ~j #0001 ADD2 =j
$no-break $no-break
( incr ) ~textarea.addr #0001 ADD2 =textarea.addr ( incr ) ~textarea.addr #0001 ADD2 =textarea.addr
~textarea.addr LDR #00 NEQ ^$find-offset MUL JMPS ~textarea.addr LDR #00 NEQ ^$find-offset MUL JMP
$find-offset-end $find-offset-end
#0018 =Sprite.x #0000 =Sprite.y #0018 =Sprite.x #0000 =Sprite.y
@ -577,7 +577,7 @@ RTN
$loop NOP $loop NOP
( draw ) #08 =Sprite.color ( draw ) #08 =Sprite.color
( incr ) ~Sprite.y #0008 ADD2 =Sprite.y ( incr ) ~Sprite.y #0008 ADD2 =Sprite.y
~Sprite.y ~Screen.height LTH2 ^$loop MUL JMPS ~Sprite.y ~Screen.height LTH2 ^$loop MUL JMP
#0000 =Sprite.y #0000 =Sprite.y
,arrowup_icn =Sprite.addr ,arrowup_icn =Sprite.addr
@ -603,7 +603,7 @@ RTN
( draw ) DUP2 LDR #00 SWP #20 SUB #0008 MUL2 ,font ADD2 =Sprite.addr ~label.color =Sprite.color ( draw ) DUP2 LDR #00 SWP #20 SUB #0008 MUL2 ,font ADD2 =Sprite.addr ~label.color =Sprite.color
( incr ) #0001 ADD2 ( incr ) #0001 ADD2
( incr ) ~Sprite.x #0008 ADD2 =Sprite.x ( incr ) ~Sprite.x #0008 ADD2 =Sprite.x
DUP2 LDR #00 NEQ ^$loop MUL JMPS DUP2 LDR #00 NEQ ^$loop MUL JMP
POP2 POP2
( selection ) ( selection )
~selection.from ,document.body SUB2 ,draw-short JSR2 ~selection.from ,document.body SUB2 ,draw-short JSR2

8
projects/software/nasu.usm
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@ -109,7 +109,7 @@ BRK
~MOUS.y ~bankview.y SUB2 #0008 DIV2 #0008 MUL2 #0010 MUL2 ADD2 ~MOUS.y ~bankview.y SUB2 #0008 DIV2 #0008 MUL2 #0010 MUL2 ADD2
~bankview.addr ADD2 #00 ~i ADD2 STR ~bankview.addr ADD2 #00 ~i ADD2 STR
( incr ) ~i #01 ADD =i ( incr ) ~i #01 ADD =i
~i #08 LTH ^copy-loop MUL JMPS ~i #08 LTH ^copy-loop MUL JMP
,redraw JSR2 ,click-end JMP2 ,redraw JSR2 ,click-end JMP2
@not-copy-mode @not-copy-mode
@ -122,7 +122,7 @@ BRK
~MOUS.y ~bankview.y SUB2 #0008 DIV2 #0008 MUL2 #0010 MUL2 ADD2 ~MOUS.y ~bankview.y SUB2 #0008 DIV2 #0008 MUL2 #0010 MUL2 ADD2
~bankview.addr ADD2 #00 ~i ADD2 STR ~bankview.addr ADD2 #00 ~i ADD2 STR
( incr ) ~i #01 ADD =i ( incr ) ~i #01 ADD =i
~i #08 LTH ^erase-loop MUL JMPS ~i #08 LTH ^erase-loop MUL JMP
,redraw JSR2 ,click-end JMP2 ,redraw JSR2 ,click-end JMP2
@not-erase-mode @not-erase-mode
@ -460,13 +460,13 @@ RTN
( incr ) ~SCRN.x #0001 ADD2 =SCRN.x ( incr ) ~SCRN.x #0001 ADD2 =SCRN.x
( draw ) ~rect.y1 =SCRN.y ~color =SCRN.color ( draw ) ~rect.y1 =SCRN.y ~color =SCRN.color
( draw ) ~rect.y2 =SCRN.y ~color =SCRN.color ( draw ) ~rect.y2 =SCRN.y ~color =SCRN.color
~SCRN.x ~rect.x2 LTH2 ^$hor MUL JMPS ~SCRN.x ~rect.x2 LTH2 ^$hor MUL JMP
~rect.y1 =SCRN.y ~rect.y1 =SCRN.y
$ver NOP $ver NOP
( draw ) ~rect.x1 =SCRN.x ~color =SCRN.color ( draw ) ~rect.x1 =SCRN.x ~color =SCRN.color
( draw ) ~rect.x2 =SCRN.x ~color =SCRN.color ( draw ) ~rect.x2 =SCRN.x ~color =SCRN.color
( incr ) ~SCRN.y #0001 ADD2 =SCRN.y ( incr ) ~SCRN.y #0001 ADD2 =SCRN.y
~SCRN.y ~rect.y2 #0001 ADD2 LTH2 ^$ver MUL JMPS ~SCRN.y ~rect.y2 #0001 ADD2 LTH2 ^$ver MUL JMP
RTN RTN

13
projects/tests/cond.usm
View File

@ -1,18 +1,29 @@
( tests/cond ) ( tests/cond )
%RTN { RSW2 JMP2 }
%RTN? { CLN2 JMP2? }
|0100 @RESET |0100 @RESET
#00 #d0 #00 #d0
$loop NOP $loop NOP
( incr ) SWP #01 ADD SWP ( incr ) SWP #01 ADD SWP
DUP2 LTH ^$loop SWP JMPS? DUP2 LTH ^$loop SWP JMP?
POP =Console.byte POP =Console.byte
,routine JSR2
BRK BRK
@routine @routine
CLN2 JMP2
#aa
RTN RTN
|c000 @FRAME |c000 @FRAME

12
projects/tests/jump.usm
View File

@ -12,12 +12,12 @@ BRK
( should print 11, 22, 33, 44 ) ( should print 11, 22, 33, 44 )
#11 =Console.byte #11 =Console.byte
#03 JMPS BRK BRK BRK #03 JMP BRK BRK BRK
( skip foward with id ) ( skip foward with id )
#22 =Console.byte #22 =Console.byte
^jump JMPS BRK BRK BRK @jump ^jump JMP BRK BRK BRK @jump
( skip patterns ) ( skip patterns )
@ -27,7 +27,7 @@ BRK
#ff =Console.byte #ff =Console.byte
@skip1 @skip1
#12 #34 LTH ^skip2 #04 SUB MUL JMPS #12 #34 LTH ^skip2 #04 SUB MUL JMP
#ff =Console.byte #ff =Console.byte
@skip2 @skip2
@ -41,9 +41,9 @@ RTN
( should print aa, bb, cc, dd ) ( should print aa, bb, cc, dd )
@label1 #aa =Console.byte ^label3 JMPS @label1 #aa =Console.byte ^label3 JMP
@label2 #cc =Console.byte ^label4 JMPS @label2 #cc =Console.byte ^label4 JMP
@label3 #bb =Console.byte ^label2 JMPS @label3 #bb =Console.byte ^label2 JMP
@label4 #dd =Console.byte BRK @label4 #dd =Console.byte BRK
@end @end

8
projects/tests/loop.usm
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@ -16,7 +16,7 @@ BRK
$loop NOP $loop NOP
~a #01 ADD =a ~a #01 ADD =a
~a #d0 LTH ^$loop MUL JMPS ~a #d0 LTH ^$loop MUL JMP
~a =Console.byte ~a =Console.byte
RTN RTN
@ -34,7 +34,7 @@ RTN
$loop NOP $loop NOP
~c #01 ADD =c ~c #01 ADD =c
~c #d0 LTH ^$loop SWP JMPS? ~c #d0 LTH ^$loop SWP JMP?
~c =Console.byte ~c =Console.byte
RTN RTN
@ -44,7 +44,7 @@ RTN
#00 #d0 #00 #d0
$loop NOP $loop NOP
( incr ) SWP #01 ADD SWP ( incr ) SWP #01 ADD SWP
DUP2 LTH ^$loop SWP JMPS? DUP2 LTH ^$loop SWP JMP?
POP =Console.byte POP =Console.byte
RTN RTN
@ -54,7 +54,7 @@ RTN
#0000 #0d00 #0000 #0d00
$loop NOP $loop NOP
( incr ) SWP2 #0001 ADD2 SWP2 ( incr ) SWP2 #0001 ADD2 SWP2
OVR2 OVR2 LTH2 ^$loop SWP JMPS? OVR2 OVR2 LTH2 ^$loop SWP JMP?
POP2 =Console.short POP2 =Console.short
RTN RTN

13
uxn.c
View File

@ -33,9 +33,8 @@ Uint16 peek16(Stack *s, Uint8 a) { return peek8(s, a * 2) + (peek8(s, a * 2 + 1)
void op_brk(Uxn *u) { setflag(&u->status, FLAG_HALT, 1); } void op_brk(Uxn *u) { setflag(&u->status, FLAG_HALT, 1); }
void op_lit(Uxn *u) { u->literal += 1; } void op_lit(Uxn *u) { u->literal += 1; }
void op_nop(Uxn *u) { (void)u; } void op_nop(Uxn *u) { (void)u; }
void op_jmp(Uxn *u) { Uint8 a = pop8(&u->wst); u->ram.ptr += getflag(&u->status, FLAG_SIGN) ? (Sint8)a : a; } void op_jmp(Uxn *u) { Uint8 a = pop8(&u->wst); u->ram.ptr += (Sint8)a; }
void op_jsr(Uxn *u) { Uint8 a = pop8(&u->wst); push16(&u->rst, u->ram.ptr); u->ram.ptr += (Sint8)a; }
void op_jsr(Uxn *u) { Uint8 a = pop8(&u->wst); push16(&u->rst, u->ram.ptr); u->ram.ptr += getflag(&u->status, FLAG_SIGN) ? (Sint8)a : a; }
void op_rtn(Uxn *u) { u->ram.ptr = pop16(&u->rst); } void op_rtn(Uxn *u) { u->ram.ptr = pop16(&u->rst); }
void op_ldr(Uxn *u) { Uint16 a = pop16(&u->wst); push8(&u->wst, mempeek8(u, a)); } void op_ldr(Uxn *u) { Uint16 a = pop16(&u->wst); push8(&u->wst, mempeek8(u, a)); }
void op_str(Uxn *u) { Uint16 a = pop16(&u->wst); Uint8 b = pop8(&u->wst); mempoke8(u, a, b); } void op_str(Uxn *u) { Uint16 a = pop16(&u->wst); Uint8 b = pop8(&u->wst); mempoke8(u, a, b); }
@ -50,6 +49,7 @@ void op_dup(Uxn *u) { push8(&u->wst, peek8(&u->wst, 0)); }
void op_swp(Uxn *u) { Uint8 b = pop8(&u->wst), a = pop8(&u->wst); push8(&u->wst, b); push8(&u->wst, a); } void op_swp(Uxn *u) { Uint8 b = pop8(&u->wst), a = pop8(&u->wst); push8(&u->wst, b); push8(&u->wst, a); }
void op_ovr(Uxn *u) { push8(&u->wst, peek8(&u->wst, 1)); } void op_ovr(Uxn *u) { push8(&u->wst, peek8(&u->wst, 1)); }
void op_rot(Uxn *u) { Uint8 c = pop8(&u->wst), b = pop8(&u->wst), a = pop8(&u->wst); push8(&u->wst, b); push8(&u->wst, c); push8(&u->wst, a); } void op_rot(Uxn *u) { Uint8 c = pop8(&u->wst), b = pop8(&u->wst), a = pop8(&u->wst); push8(&u->wst, b); push8(&u->wst, c); push8(&u->wst, a); }
void op_cln(Uxn *u) { push8(&u->wst, peek8(&u->rst, 0)); }
void op_wsr(Uxn *u) { Uint8 a = pop8(&u->wst); push8(&u->rst, a); } void op_wsr(Uxn *u) { Uint8 a = pop8(&u->wst); push8(&u->rst, a); }
void op_rsw(Uxn *u) { Uint8 a = pop8(&u->rst); push8(&u->wst, a); } void op_rsw(Uxn *u) { Uint8 a = pop8(&u->rst); push8(&u->wst, a); }
/* Arithmetic */ /* Arithmetic */
@ -78,6 +78,7 @@ void op_dup16(Uxn *u) { push16(&u->wst, peek16(&u->wst, 0)); }
void op_swp16(Uxn *u) { Uint16 b = pop16(&u->wst), a = pop16(&u->wst); push16(&u->wst, b); push16(&u->wst, a); } void op_swp16(Uxn *u) { Uint16 b = pop16(&u->wst), a = pop16(&u->wst); push16(&u->wst, b); push16(&u->wst, a); }
void op_ovr16(Uxn *u) { push16(&u->wst, peek16(&u->wst, 1)); } void op_ovr16(Uxn *u) { push16(&u->wst, peek16(&u->wst, 1)); }
void op_rot16(Uxn *u) { Uint16 c = pop16(&u->wst), b = pop16(&u->wst), a = pop16(&u->wst); push16(&u->wst, b); push16(&u->wst, c); push16(&u->wst, a); } void op_rot16(Uxn *u) { Uint16 c = pop16(&u->wst), b = pop16(&u->wst), a = pop16(&u->wst); push16(&u->wst, b); push16(&u->wst, c); push16(&u->wst, a); }
void op_cln16(Uxn *u) { push16(&u->wst, peek16(&u->rst, 0)); }
void op_wsr16(Uxn *u) { Uint16 a = pop16(&u->wst); push16(&u->rst, a); } void op_wsr16(Uxn *u) { Uint16 a = pop16(&u->wst); push16(&u->rst, a); }
void op_rsw16(Uxn *u) { Uint16 a = pop16(&u->rst); push16(&u->wst, a); } void op_rsw16(Uxn *u) { Uint16 a = pop16(&u->rst); push16(&u->wst, a); }
/* Arithmetic(16-bits) */ /* Arithmetic(16-bits) */
@ -93,12 +94,12 @@ void op_lth16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push8(&u-
void (*ops[])(Uxn *u) = { void (*ops[])(Uxn *u) = {
op_brk, op_nop, op_lit, op_ldr, op_str, op_jmp, op_jsr, op_rtn, op_brk, op_nop, op_lit, op_ldr, op_str, op_jmp, op_jsr, op_rtn,
op_equ, op_neq, op_gth, op_lth, op_and, op_xor, op_rol, op_ror, op_equ, op_neq, op_gth, op_lth, op_and, op_xor, op_rol, op_ror,
op_pop, op_dup, op_swp, op_ovr, op_rot, op_nop, op_wsr, op_rsw, op_pop, op_dup, op_swp, op_ovr, op_rot, op_cln, op_wsr, op_rsw,
op_add, op_sub, op_mul, op_div, op_nop, op_nop, op_nop, op_nop, op_add, op_sub, op_mul, op_div, op_nop, op_nop, op_nop, op_nop,
/* 16-bit */ /* 16-bit */
op_brk, op_nop16, op_lit16, op_ldr16, op_str16, op_jmp16, op_jsr16, op_rtn, op_brk, op_nop16, op_lit16, op_ldr16, op_str16, op_jmp16, op_jsr16, op_rtn,
op_equ16, op_neq16, op_gth16, op_lth16, op_and16, op_xor16, op_rol16, op_ror16, op_equ16, op_neq16, op_gth16, op_lth16, op_and16, op_xor16, op_rol16, op_ror16,
op_pop16, op_dup16, op_swp16, op_ovr16, op_rot16, op_nop, op_wsr16, op_rsw16, op_pop16, op_dup16, op_swp16, op_ovr16, op_rot16, op_cln16, op_wsr16, op_rsw16,
op_add16, op_sub16, op_mul16, op_div16, op_nop, op_nop, op_nop, op_nop op_add16, op_sub16, op_mul16, op_div16, op_nop, op_nop, op_nop, op_nop
}; };
@ -155,7 +156,7 @@ opcuxn(Uxn *u, Uint8 instr)
return haltuxn(u, "Return-stack overflow", instr); return haltuxn(u, "Return-stack overflow", instr);
if(!fcond || (fcond && pop8(&u->wst))) if(!fcond || (fcond && pop8(&u->wst)))
(*ops[op])(u); (*ops[op])(u);
else if(opr[op][0] >= opr[op][1]) else
u->wst.ptr -= opr[op][0] - opr[op][1]; u->wst.ptr -= opr[op][0] - opr[op][1];
return 1; return 1;
} }