uxn

Varvara Ordinator, written in ANSI C(SDL2)
git clone https://git.eamoncaddigan.net/uxn.git
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commit d8fdf3840b420383fff36487cce8bc8cb7779cc5
parent 39faf4c2b7cb6991275d7a7d09d913de438dfd29
Author: neauoire <aliceffekt@gmail.com>
Date:   Tue,  2 Mar 2021 10:14:55 -0800

Started sprite editor

Diffstat:
Massembler.c | 10++++++----
Mbuild.sh | 2+-
Aexamples/app.pattern.usm | 182+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Mexamples/dev.mouse.usm | 8++++++--
Muxn.c | 18+++++++++---------
5 files changed, 204 insertions(+), 16 deletions(-)

diff --git a/assembler.c b/assembler.c @@ -44,8 +44,8 @@ Program p; /* clang-format off */ char ops[][4] = { - "BRK", "NOP", "LIT", "---", "---", "---", "LDR", "STR", - "JMP", "JSR", "---", "RTS", "AND", "ORA", "ROL", "ROR", + "BRK", "NOP", "LIT", "JMP", "JSR", "RTS", "LDR", "STR", + "---", "---", "---", "---", "AND", "XOR", "ROL", "ROR", "POP", "DUP", "SWP", "OVR", "ROT", "---", "WSR", "RSW", "ADD", "SUB", "MUL", "DIV", "EQU", "NEQ", "GTH", "LTH" }; @@ -247,11 +247,13 @@ makevariable(char *id, Uint16 *addr, FILE *f) Macro *m = NULL; fscanf(f, "%s", wv); origin = *addr; - if((m = findmacro(wv))) { + if(sihx(wv)) + len = shex(wv); + else if((m = findmacro(wv))) { len = m->size; m->refs++; } else - len = shex(wv); + return error("Invalid macro", wv); *addr += len; return makelabel(id, origin, len, m); } diff --git a/build.sh b/build.sh @@ -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 # run -./bin/assembler examples/dev.key.usm bin/boot.rom +./bin/assembler examples/app.pattern.usm bin/boot.rom ./bin/emulator bin/boot.rom diff --git a/examples/app.pattern.usm b/examples/app.pattern.usm @@ -0,0 +1,181 @@ +( app/hex ) + +&Screen { width 2 height 2 pad 4 y 2 x 2 color 1 } +&Sprite { pad 8 x 2 y 2 addr 2 color 1 } +&Mouse { x 2 y 2 state 1 chord 1 } + +&Point2d { x 2 y 2 } +&Rect2d { x1 2 y1 2 x2 2 y2 2 } +&Point { x 1 y 1 } +&Editor { x1 2 y1 2 } + +;pixel Point +;window Rect2d +;mouse Point2d +;editor Editor +;rect Rect2d + +;color 1 + +|0100 @RESET + + #0030 =window.x1 #0030 =window.y1 #0090 =window.x2 #00a0 =window.y2 + + #0040 =editor.x1 #0040 =editor.y + + #0040 #0040 #01 ,draw-editor JSR + +BRK + +|0200 @FRAME + + ,no-click ~dev/mouse.state #00 EQU JMP? POP2 + + ( load ) ,pattern ~dev/mouse.y ~editor.y1 SUB2 #0008 DIV2 ADD2 LDR + ( mask ) #01 #07 ~dev/mouse.x ~editor.x1 SUB2 #0008 DIV2 SWP POP SUB ROL + XOR + ( save ) ,pattern ~dev/mouse.y ~editor.y1 SUB2 #0008 DIV2 ADD2 STR + + ,redraw JSR + + @no-click + + ,draw-cursor JSR + +BRK + +@redraw + + #0000 #0000 ~dev/screen.width ~dev/screen.height #03 ,pattern ,tile-rect JSR + + ~window.x1 #0001 ADD2 ~window.y1 ~window.x2 #0004 ADD2 ~window.y2 #0004 ADD2 #00 ,fill-rect JSR + ~window.x1 ~window.y1 #0001 ADD2 ~window.x2 #0001 ADD2 ~window.y2 #0004 ADD2 #00 ,fill-rect JSR + ~window.x1 #0001 SUB2 ~window.y1 #0001 SUB2 ~window.x2 ~window.y2 #00 ,line-rect JSR + ~window.x1 #0002 SUB2 ~window.y1 #0002 SUB2 ~window.x2 #0001 ADD2 ~window.y2 #0001 ADD2 #02 ,line-rect JSR + ~window.x1 ~window.y1 ~window.x2 ~window.y2 #00 ,fill-rect JSR + + ~editor.x1 =dev/sprite.x + ~editor.y1 =dev/sprite.y + ,pattern =dev/sprite.addr + + #02 =color + + #00 =pixel.y + @redraw-ver + #00 =pixel.x + ~editor.x1 =dev/sprite.x + @redraw-hor + + ( get bit ) + ,cell0_icn #00 + ,pattern #00 ~pixel.y ADD2 LDR #07 ~pixel.x SUB ROR #01 AND ( get bit ) + #0008 MUL2 ADD2 =dev/sprite.addr ( add *8 ) + + ( draw ) ~color =dev/sprite.color + ( incr ) ~dev/sprite.x #0008 ADD2 =dev/sprite.x + ( incr ) ~pixel.x #01 ADD =pixel.x + ,redraw-hor ~dev/sprite.x ~editor.x1 #0040 ADD2 LTH2 JMP? POP2 + ( incr ) ~dev/sprite.y #0008 ADD2 =dev/sprite.y + ( incr ) ~pixel.y #01 ADD =pixel.y + ,redraw-ver ~dev/sprite.y ~editor.y1 #0040 ADD2 LTH2 JMP? POP2 + + ,pattern =dev/sprite.addr + ~dev/sprite.y #0040 SUB2 =dev/sprite.y + ~dev/sprite.x #0008 ADD2 =dev/sprite.x + ( draw ) #01 =dev/sprite.color + +RTS + +@fill-rect ( x1 y1 x2 y2 color ) + + ( load ) =color =rect.y2 =rect.x2 DUP2 =dev/screen.y =rect.y1 DUP2 =dev/screen.x =rect.x1 + @fill-rect-ver + ~rect.x1 =dev/screen.x + @fill-rect-hor + ( draw ) ~color =dev/screen.color + ( incr ) ~dev/screen.x #0001 ADD2 =dev/screen.x + ,fill-rect-hor ~dev/screen.x ~rect.x2 LTH2 JMP? POP2 + ( incr ) ~dev/screen.y #0001 ADD2 =dev/screen.y + ,fill-rect-ver ~dev/screen.y ~rect.y2 LTH2 JMP? POP2 + +RTS + +@line-rect ( x1 y1 x2 y2 color ) + + ( load ) =color =rect.y2 =rect.x2 DUP2 =dev/screen.y =rect.y1 DUP2 =dev/screen.x =rect.x1 + @line-rect-hor + ( incr ) ~dev/screen.x #0001 ADD2 =dev/screen.x + ( draw ) ~rect.y1 =dev/screen.y ~color =dev/screen.color + ( draw ) ~rect.y2 =dev/screen.y ~color =dev/screen.color + ,line-rect-hor ~dev/screen.x ~rect.x2 LTH2 JMP? POP2 + ~rect.y1 =dev/screen.y + @line-rect-ver + ( draw ) ~rect.x1 =dev/screen.x ~color =dev/screen.color + ( draw ) ~rect.x2 =dev/screen.x ~color =dev/screen.color + ( incr ) ~dev/screen.y #0001 ADD2 =dev/screen.y + ,line-rect-ver ~dev/screen.y ~rect.y2 #0001 ADD2 LTH2 JMP? POP2 + +RTS + +@tile-rect ( x1 y1 x2 y2 color addr ) + + =dev/sprite.addr =color =rect.y2 =rect.x2 DUP2 =dev/sprite.y =rect.y1 DUP2 =dev/sprite.x =rect.x1 + + @tile-rect-ver + ~rect.x1 =dev/sprite.x + @tile-rect-hor + ( draw ) ~color =dev/sprite.color + ( incr ) ~dev/sprite.x #0008 ADD2 =dev/sprite.x + ,tile-rect-hor ~dev/sprite.x ~rect.x2 LTH2 JMP? POP2 + ( incr ) ~dev/sprite.y #0008 ADD2 =dev/sprite.y + ,tile-rect-ver ~dev/sprite.y ~rect.y2 LTH2 JMP? POP2 + +RTS + +@draw-editor + + =color DUP2 =dev/sprite.y =editor.y1 DUP2 =dev/sprite.x =editor.x1 + + ,redraw JSR + + +RTS + +@draw-cursor + + ~mouse.x ~dev/mouse.x NEQU2 + ~mouse.y ~dev/mouse.y NEQU2 + + #0000 EQU2 RTS? ( Return if unchanged ) + + ( clear last cursor ) + #10 ,clear_icn ~mouse.x ~mouse.y ,draw-sprite JSR + ( record mouse positions ) + ~dev/mouse.x =mouse.x ~dev/mouse.y =mouse.y + #13 ,cursor_icn ~mouse.x ~mouse.y ,draw-sprite JSR + +RTS + +@draw-sprite + + =dev/sprite.y + =dev/sprite.x + =dev/sprite.addr + =dev/sprite.color + +RTS + +@pattern [ 0000 0000 0000 0000 ] +@clear_icn [ 0000 0000 0000 0000 ] +@cursor_icn [ 80c0 e0f0 f8e0 1000 ] +@cell0_icn [ 7c82 8282 8282 7c00 ] +@cell1_icn [ 7cfe fefe fefe 7c00 ] + +|d000 @ERROR BRK + +|FF10 ;dev/screen Screen +|FF20 ;dev/sprite Sprite +|FF50 ;dev/mouse Mouse + +|FFF0 .RESET .FRAME .ERROR ( vectors ) +|FFF8 [ 13fd 1ef3 1bf2 ] ( palette ) +\ No newline at end of file diff --git a/examples/dev.mouse.usm b/examples/dev.mouse.usm @@ -139,18 +139,22 @@ RTS RTS @draw-sprite + =dev/sprite.y =dev/sprite.x =dev/sprite.addr =dev/sprite.color - RTS + +RTS @draw-sprite-chr + =dev/sprite.y =dev/sprite.x =dev/sprite.addr #20 =dev/sprite.color - RTS + +RTS @clear_icn [ 0000 0000 0000 0000 ] @cursor_icn [ 80c0 e0f0 f8e0 1000 ] diff --git a/uxn.c b/uxn.c @@ -34,14 +34,14 @@ 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_lit(Uxn *u) { u->literal += 1; } void op_nop(Uxn *u) { printf("0x%02x \n", pop8(&u->wst)); fflush(stdout); } -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); } -/* Logic */ void op_jmp(Uxn *u) { u->ram.ptr = pop16(&u->wst); } void op_jsr(Uxn *u) { push16(&u->rst, u->ram.ptr); u->ram.ptr = pop16(&u->wst); } void op_rts(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_str(Uxn *u) { Uint16 a = pop16(&u->wst); Uint8 b = pop8(&u->wst); mempoke8(u, a, b); } +/* Logic */ void op_and(Uxn *u) { Uint8 a = pop8(&u->wst), b = pop8(&u->wst); push8(&u->wst, b & a); } -void op_ora(Uxn *u) { Uint8 a = pop8(&u->wst), b = pop8(&u->wst); push8(&u->wst, b | a); } +void op_xor(Uxn *u) { Uint8 a = pop8(&u->wst), b = pop8(&u->wst); push8(&u->wst, b | a); } void op_rol(Uxn *u) { Uint8 a = pop8(&u->wst), b = pop8(&u->wst); push8(&u->wst, b << a); } void op_ror(Uxn *u) { Uint8 a = pop8(&u->wst), b = pop8(&u->wst); push8(&u->wst, b >> a); } /* Stack */ @@ -67,7 +67,7 @@ void op_nop16(Uxn *u) { printf("%04x\n", pop16(&u->wst)); } void op_ldr16(Uxn *u) { Uint16 a = pop16(&u->wst); push16(&u->wst, mempeek16(u, a)); } void op_str16(Uxn *u) { Uint16 a = pop16(&u->wst); Uint16 b = pop16(&u->wst); mempoke16(u, a, b); } void op_and16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push16(&u->wst, b & a); } -void op_ora16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push16(&u->wst, b | a); } +void op_xor16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push16(&u->wst, b ^ a); } void op_rol16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push16(&u->wst, b << a); } void op_ror16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push16(&u->wst, b >> a); } /* Stack(16-bits) */ @@ -89,13 +89,13 @@ void op_gth16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push8(&u- void op_lth16(Uxn *u) { Uint16 a = pop16(&u->wst), b = pop16(&u->wst); push8(&u->wst, getflag(&u->status, FLAG_SIGN) ? (Sint16)b < (Sint16)a : b < a); } void (*ops[])(Uxn *u) = { - op_brk, op_nop, op_lit, op_nop, op_nop, op_nop, op_ldr, op_str, - op_jmp, op_jsr, op_nop, op_rts, op_and, op_ora, op_rol, op_ror, + op_brk, op_nop, op_lit, op_jmp, op_jsr, op_rts, op_ldr, op_str, + op_jmp, op_jsr, op_nop, op_rts, 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_add, op_sub, op_mul, op_div, op_equ, op_neq, op_gth, op_lth, /* 16-bit */ - op_brk, op_nop16, op_lit16, op_nop, op_nop, op_nop, op_ldr16, op_str16, - op_jmp, op_jsr, op_nop, op_rts, op_and16, op_ora16, op_rol16, op_ror16, + op_brk, op_nop16, op_lit16, op_jmp, op_jsr, op_rts, op_ldr16, op_str16, + op_jmp, op_jsr, op_nop, op_rts, op_and16, op_xor16, op_rol16, op_ror16, op_pop16, op_dup16, op_swp16, op_ovr16, op_rot16, op_wsr16, op_rsw16, op_nop, op_add16, op_sub16, op_mul16, op_div16, op_equ16, op_neq16, op_gth16, op_lth16 };