minesweeper, random number generator, debugging assembler

main
Jeremy Penner 2023-09-22 20:38:58 -04:00
parent ec7ab0da0d
commit 8eadd6171a
7 changed files with 133 additions and 3 deletions

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@ -36,7 +36,7 @@ array oparg2 3 cells allot
: byteop? ( -- f )
oparg-breg? swap-args oparg-breg? or swap-args byteptr? or ;
: byteval? ( v -- f ) dup 0x7f <= swap -0x80 >= and ;
: byteval? ( v -- f ) dup 0x7f <= swap 0xff80 >= and ;
: oparg-bwreg? ( -- f ) byteop? if oparg-breg? else oparg-wreg? then ;
: operror ( err -- ) lastop @ type s" near " type lastlabel @ type s" : " type type cr ;
@ -205,7 +205,7 @@ var ignoreimm
: diffaddr ( opsize -- diff ) oparg-val @ swap target + - ;
: oparg-nearaddr? ( -- f ) oparg-mem? oparg-base @ -1 = and ;
: >short-jmp* ( op -- ) oparg-nearaddr? if
2 diffaddr dup byteval? oparg-mempatch? or
2 diffaddr dup dbg" jumping by" byteval? oparg-mempatch? or
if swap >t ' patch-r8 patchpoint >t 2ret then drop
then drop ;
: >near-reljmp* ( op -- ) oparg-nearaddr? if

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3
debug.jrt Executable file
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@ -0,0 +1,3 @@
{
}

BIN
jort.com

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@ -39,7 +39,7 @@ dbg" math"
dbg" comparisons"
L: TRUE 0xffff w>t
L: FALSE 0 w>t
L: RETTRUE
L: RETTRUE target .hex
PUSH TRUE
NEXT
L: RETFALSE
@ -49,6 +49,7 @@ L: RETFALSE
:ASM not
POP AX
OR AX AX
L@ RETTRUE .hex
JZ RETTRUE
JMP RETFALSE

103
mines.jrt Executable file
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@ -0,0 +1,103 @@
import text.jrt
import random.jrt
30 const maxw 16 const maxh
array board maxw maxh * allot
10 var, boardw
10 var, boardh
15 var, minecount
: board-lim boardw @ boardh @ * board + ;
: square-at ( x y -- p ) boardw @ * + board + ;
: square-pos ( p -- x y ) board - boardw @ /mod swap ;
: valid-pos? ( x y -- f )
dup 0 >= swap boardh @ < and
swap dup 0 >= swap boardw @ < and and ;
0x80 const FMINE
0x40 const FREVEALED
0x20 const FFLAG
0x0F const NEIGHBOUR-MASK
: place-mine ( x y -- f )
square-at dup b@ FMINE & not if FMINE swap b! 0 then not ;
: rand-mine ( -- )
begin rand boardw @ % rand boardh @ % place-mine until ;
: reset-board
board begin dup board-lim < while 0 over b! 1+ repeat drop ;
: populate-board
minecount @ begin rand-mine 1- dup not until drop ;
: mine-at? ( x y -- f )
square-at b@ FMINE & ;
: do-at ( x y cp -- )
>rot 2dup valid-pos? if <rot execute else drop drop drop then ;
: do-at-neighbours ( x y cp -- )
>r over 1- over 1- r@ do-at
over 1- over r@ do-at
over 1- over 1+ r@ do-at
over over 1- r@ do-at
over over 1+ r@ do-at
over 1+ over 1- r@ do-at
over 1+ over r@ do-at
swap 1+ swap 1+ <r do-at ;
0 var, curr-mine-count
: count-mine-at ( x y -- )
mine-at? if curr-mine-count @ 1+ curr-mine-count ! then ;
: analyze-pos ( x y -- n )
0 curr-mine-count ! ' count-mine-at do-at-neighbours curr-mine-count @ ;
: analyze-board
board begin dup board-lim < while
dup square-pos analyze-pos over b@ | over b! 1+ repeat drop ;
: init-board ( w h minecount -- )
minecount ! boardh ! boardw !
reset-board populate-board analyze-board ;
: draw-neighbours ( b -- )
NEIGHBOUR-MASK & [ key 0 lit ] + draw-char ;
: draw-flag ( -- ) [ key ! lit ] draw-char ;
: draw-mine ( -- ) 0x0f draw-char ;
: draw-block ( -- ) 0xb1 draw-char ;
: draw-revealed ( b -- )
dup FMINE & if draw-mine drop else draw-neighbours then ;
: draw-hidden ( b -- )
FFLAG & if draw-flag else draw-block then ;
: draw-square ( p -- )
b@ dup FREVEALED & if draw-revealed else draw-hidden then ;
: pos>screen ( x y -- x y )
swap pagew boardw @ - 2/ +
swap pageh boardh @ - 2/ + ;
: draw-board ( -- )
board begin dup board-lim < while
dup square-pos pos>screen textxy!
dup draw-square 1+ repeat drop ;
0 var, reveal-state
: reveal ( p -- ) dup b@ FREVEALED | swap b! ;
: reveal-square? ( x y -- )
square-at b@ FREVEALED = if -1 reveal-state ! then ;
: reveal-pass ( -- f )
0 reveal-state !
board begin dup board-lim < while
dup b@ FREVEALED & not if
0 reveal-state b!
dup square-pos ' reveal-square? do-at-neighbours
reveal-state b@ if dup reveal then then
1+ repeat drop reveal-state @ ;
: reveal-all begin reveal-pass not until ;
: reveal-at square-at reveal ( reveal-all ) draw-board ;
: start
textmode
reseed!
15 10 15 init-board
draw-board ;

23
random.jrt Executable file
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@ -0,0 +1,23 @@
( https://codebase64.org/doku.php?id=base:16bit_xorshift_random_generator )
1 var, prngstate
:asm rand
MOV AX prngstate @+
MOV BX AX
RCR BX 1 #
XOR AH BL ( high part of x ^= x << 7 )
MOV BH AH
RCR BH 1 # ( BH now has x >> 9 and high bit comes from low byte )
XOR AL BH ( x ^= x >> 9 and the low part of x ^= x << 7 done )
XOR AH AL ( x ^= x << 8 )
MOV prngstate @+ AX
PUSH AX
NEXT
:asm ticks
XOR AX AX
INT 0x1a #
PUSH DX
NEXT
: reseed! ticks prngstate ! ;