mirror of
https://git.sr.ht/~rabbits/uxn
synced 2024-11-25 07:15:12 +00:00
Increased max cycles
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parent
ca42e1209d
commit
0ba5ef6406
4 changed files with 19 additions and 19 deletions
32
src/uxn.c
32
src/uxn.c
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@ -24,19 +24,19 @@ WITH REGARD TO THIS SOFTWARE.
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/* Microcode */
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#define JMI a = uxn.ram[pc ] << 8 | uxn.ram[pc + 1], pc += a + 2;
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#define JMP(i) if(_2) pc = i; else pc += (Sint8)i;
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#define JMI a = uxn.ram[pc] << 8 | uxn.ram[pc + 1], pc += a + 2;
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#define REM if(_r) uxn.rst.ptr -= 1 + _2; else uxn.wst.ptr -= 1 + _2;
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#define INC(s) uxn.s.dat[uxn.s.ptr++]
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#define DEC(s) uxn.s.dat[--uxn.s.ptr]
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#define POx(o) if(_2) { PO2(o) } else PO1(o)
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#define PO1(o) o = _r ? DEC(rst) : DEC(wst);
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#define PO2(o) PO1(o) o |= (_r ? DEC(rst) : DEC(wst)) << 8;
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#define PUx(i) if(_2) { c = (i); PU1(c >> 8) PU1(c) } else PU1(i)
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#define PU1(i) if(_r) INC(rst) = i; else INC(wst) = i;
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#define RP1(i) if(_r) INC(wst) = i; else INC(rst) = i;
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#define GET(o) if(_2) PO1(o[1]) PO1(o[0])
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#define PUT(i) PU1(i[0]) if(_2) { PU1(i[1]) }
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#define JMP(i) { if(_2) pc = i; else pc += (Sint8)i; }
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#define PO1(o) { o = _r ? DEC(rst) : DEC(wst); }
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#define PO2(o) { PO1(o) o |= (_r ? DEC(rst) : DEC(wst)) << 8; }
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#define POx(o) { if(_2) { PO2(o) } else PO1(o) }
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#define PU1(i) { if(_r) INC(rst) = i; else INC(wst) = i; }
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#define RP1(i) { if(_r) INC(wst) = i; else INC(rst) = i; }
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#define PUx(i) { if(_2) { c = (i); PU1(c >> 8) PU1(c) } else PU1(i) }
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#define GET(o) { if(_2) PO1(o[1]) PO1(o[0]) }
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#define PUT(i) { PU1(i[0]) if(_2) PU1(i[1]) }
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#define DEI(i,o) o[0] = emu_dei(i); if(_2) o[1] = emu_dei(i + 1); PUT(o)
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#define DEO(i,j) emu_deo(i, j[0]); if(_2) emu_deo(i + 1, j[1]);
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#define PEK(i,o,m) o[0] = uxn.ram[i]; if(_2) o[1] = uxn.ram[(i + 1) & m]; PUT(o)
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@ -45,17 +45,17 @@ WITH REGARD TO THIS SOFTWARE.
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int
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uxn_eval(Uint16 pc)
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{
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int step, a, b, c, x[2], y[2], z[2];
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unsigned int a, b, c, x[2], y[2], z[2], step;
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if(!pc || uxn.dev[0x0f]) return 0;
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for(step = 0; step < STEP_LIMIT; step++) {
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for(step = STEP_MAX; step; step--) {
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switch(uxn.ram[pc++]) {
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/* BRK */ case 0x00: return 1;
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/* JCI */ case 0x20: if(DEC(wst)) { JMI break; } pc += 2; break;
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/* JMI */ case 0x40: JMI break;
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/* JSI */ case 0x60: c = pc + 2; INC(rst) = c >> 8; INC(rst) = c; JMI break;
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/* LI2 */ case 0xa0: INC(wst) = uxn.ram[pc++]; /* fall through */
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/* LI2 */ case 0xa0: INC(wst) = uxn.ram[pc++]; /* fall-through */
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/* LIT */ case 0x80: INC(wst) = uxn.ram[pc++]; break;
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/* L2r */ case 0xe0: INC(rst) = uxn.ram[pc++]; /* fall through */
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/* L2r */ case 0xe0: INC(rst) = uxn.ram[pc++]; /* fall-through */
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/* LIr */ case 0xc0: INC(rst) = uxn.ram[pc++]; break;
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/* INC */ OPC(0x01, POx(a), PUx(a + 1))
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/* POP */ OPC(0x02, REM, {})
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@ -69,9 +69,9 @@ uxn_eval(Uint16 pc)
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/* GTH */ OPC(0x0a, POx(a) POx(b),PU1(b > a))
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/* LTH */ OPC(0x0b, POx(a) POx(b),PU1(b < a))
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/* JMP */ OPC(0x0c, POx(a),JMP(a))
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/* JCN */ OPC(0x0d, POx(a) PO1(b), if(b) { JMP(a) })
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/* JCN */ OPC(0x0d, POx(a) PO1(b), if(b) JMP(a))
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/* JSR */ OPC(0x0e, POx(a),RP1(pc >> 8) RP1(pc) JMP(a))
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/* STH */ OPC(0x0f, GET(x),RP1(x[0]) if(_2) { RP1(x[1]) })
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/* STH */ OPC(0x0f, GET(x),RP1(x[0]) if(_2) RP1(x[1]))
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/* LDZ */ OPC(0x10, PO1(a),PEK(a, x, 0xff))
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/* STZ */ OPC(0x11, PO1(a) GET(y),POK(a, y, 0xff))
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/* LDR */ OPC(0x12, PO1(a),PEK(pc + (Sint8)a, x, 0xffff))
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@ -16,7 +16,7 @@ WITH REGARD TO THIS SOFTWARE.
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/* clang-format on */
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#define STEP_LIMIT 0x800000
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#define STEP_MAX 0x80000000
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#define PAGE_PROGRAM 0x0100
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typedef unsigned char Uint8;
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@ -60,7 +60,7 @@ int
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main(int argc, char **argv)
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{
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if(argc > 1 && argv[1][0] == '-' && argv[1][1] == 'v')
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fprintf(stdout, "Uxncli - Varvara Emulator, 11 Nov 2024.\n");
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fprintf(stdout, "Uxncli - Varvara Emulator, 12 Nov 2024.\n");
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else if(argc == 1 || !system_boot(ram, argv[1]))
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return !fprintf(stdout, "usage: %s [-v] file.rom [args..]\n", argv[0]);
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else {
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@ -466,7 +466,7 @@ main(int argc, char **argv)
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/* flags */
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if(argc > 1 && argv[i][0] == '-') {
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if(!strcmp(argv[i], "-v"))
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return system_error("Uxnemu - Varvara Emulator", "11 Nov 2024.");
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return system_error("Uxnemu - Varvara Emulator", "12 Nov 2024.");
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else if(!strcmp(argv[i], "-2x"))
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set_zoom(2, 0);
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else if(!strcmp(argv[i], "-3x"))
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