(uxn.c) Housekeeping
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Devine Lu Linvega
parent
d1268a850e
commit
91cd380632
99
src/uxn.c
99
src/uxn.c
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@ -12,42 +12,35 @@ WITH REGARD TO THIS SOFTWARE.
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*/
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#define OPC(opc, init, body) {\
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case 0x00|opc: {enum{_2=0,_r=0};init;body;} break;\
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case 0x20|opc: {enum{_2=1,_r=0};init;body;} break;\
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case 0x40|opc: {enum{_2=0,_r=1};init;body;} break;\
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case 0x60|opc: {enum{_2=1,_r=1};init;body;} break;\
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case 0x80|opc: {enum{_2=0,_r=0};int k=uxn.wst.ptr;init;uxn.wst.ptr= k;body;} break;\
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case 0xa0|opc: {enum{_2=1,_r=0};int k=uxn.wst.ptr;init;uxn.wst.ptr= k;body;} break;\
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case 0xc0|opc: {enum{_2=0,_r=1};int k=uxn.rst.ptr;init;uxn.rst.ptr= k;body;} break;\
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case 0xe0|opc: {enum{_2=1,_r=1};int k=uxn.rst.ptr;init;uxn.rst.ptr= k;body;} break;\
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case 0x00|opc: {enum{_2=0,_r=0};init body;} break;\
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case 0x20|opc: {enum{_2=1,_r=0};init body;} break;\
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case 0x40|opc: {enum{_2=0,_r=1};init body;} break;\
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case 0x60|opc: {enum{_2=1,_r=1};init body;} break;\
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case 0x80|opc: {enum{_2=0,_r=0};int k=uxn.wst.ptr;init uxn.wst.ptr= k;body;} break;\
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case 0xa0|opc: {enum{_2=1,_r=0};int k=uxn.wst.ptr;init uxn.wst.ptr= k;body;} break;\
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case 0xc0|opc: {enum{_2=0,_r=1};int k=uxn.rst.ptr;init uxn.rst.ptr= k;body;} break;\
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case 0xe0|opc: {enum{_2=1,_r=1};int k=uxn.rst.ptr;init uxn.rst.ptr= k;body;} break;\
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}
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/* Microcode */
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#define JMI pc += uxn.ram[pc++] << 8 | uxn.ram[pc++];
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#define JMP(i) if(_2) pc = (i); else pc += (Sint8)(i);
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/* stack-registers */
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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 POP(o) if(_r) o = DEC(rst); else o = DEC(wst);
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#define PUx(i) if(_2) { tt = (i); PU1(tt >> 8) PU1(tt) } else PU1(i)
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#define PO1(o) if(_r) o = DEC(rst); else o = DEC(wst);
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#define PU1(i) if(_r) INC(rst) = i; else INC(wst) = i;
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#define PUx(i) if(_2) { tt = (i); PU1(tt >> 8) PU1(tt) } else PU1(i)
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#define RP1(i) if(_r) INC(wst) = i; else INC(rst) = i;
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#define A if(_2) { A2 } else A1
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#define A1 POP(a)
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#define A2 if(_r) a = DEC(rst) | (DEC(rst) << 8); else a = DEC(wst) | (DEC(wst) << 8);
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#define B if(_2) { B2 } else B1
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#define B1 POP(b)
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#define B2 if(_r) b = DEC(rst) | (DEC(rst) << 8); else b = DEC(wst) | (DEC(wst) << 8);
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/* memory-registers */
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#define POx(o) if(_2) { PO2(o) } else PO1(o)
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#define PO2(o) if(_r) o = DEC(rst) | (DEC(rst) << 8); else o = DEC(wst) | (DEC(wst) << 8);
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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);
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#define GET(o) if(_2) PO1(o[1]) PO1(o[0])
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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];
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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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#define POK(i,j,m) uxn.ram[i] = j[0]; if(_2) uxn.ram[(i + 1) & m] = j[1];
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#define X if(_2) POP(x[1]) POP(x[0])
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#define Y if(_2) POP(y[1]) POP(y[0])
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#define Z if(_2) POP(z[1]) POP(z[0])
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int
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uxn_eval(Uint16 pc)
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@ -65,37 +58,37 @@ uxn_eval(Uint16 pc)
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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++];
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/* LIr */ case 0xc0: INC(rst) = uxn.ram[pc++]; break;
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/* INC */ OPC(0x01, A, PUx(a + 1))
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/* INC */ OPC(0x01, POx(a), PUx(a + 1))
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/* POP */ OPC(0x02, REM, 0)
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/* NIP */ OPC(0x03, X REM, PUT(x))
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/* SWP */ OPC(0x04, X Y, PUT(x) PUT(y))
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/* ROT */ OPC(0x05, X Y Z, PUT(y) PUT(x) PUT(z))
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/* DUP */ OPC(0x06, X, PUT(x) PUT(x))
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/* OVR */ OPC(0x07, X Y, PUT(y) PUT(x) PUT(y))
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/* EQU */ OPC(0x08, A B, PU1(b == a))
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/* NEQ */ OPC(0x09, A B, PU1(b != a))
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/* GTH */ OPC(0x0a, A B, PU1(b > a))
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/* LTH */ OPC(0x0b, A B, PU1(b < a))
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/* JMP */ OPC(0x0c, A, JMP(a))
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/* JCN */ OPC(0x0d, A B1, if(b) JMP(a))
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/* JSR */ OPC(0x0e, A, RP1(pc >> 8) RP1(pc) JMP(a))
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/* STH */ OPC(0x0f, X, RP1(x[0]) if(_2) RP1(x[1]))
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/* LDZ */ OPC(0x10, A1, PEK(a, x, 0xff) PUT(x))
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/* STZ */ OPC(0x11, A1 Y, POK(a, y, 0xff))
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/* LDR */ OPC(0x12, A1, PEK(pc+(Sint8)a, x, 0xffff) PUT(x))
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/* STR */ OPC(0x13, A1 Y, POK(pc+(Sint8)a, y, 0xffff))
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/* LDA */ OPC(0x14, A2, PEK(a, x, 0xffff) PUT(x))
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/* STA */ OPC(0x15, A2 Y, POK(a, y, 0xffff))
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/* DEI */ OPC(0x16, A1, DEI(a, x) PUT(x))
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/* DEO */ OPC(0x17, A1 Y, DEO(a, y))
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/* ADD */ OPC(0x18, A B, PUx(b + a))
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/* SUB */ OPC(0x19, A B, PUx(b - a))
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/* MUL */ OPC(0x1a, A B, PUx(b * a))
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/* DIV */ OPC(0x1b, A B, PUx(a ? b / a : 0))
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/* AND */ OPC(0x1c, A B, PUx(b & a))
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/* ORA */ OPC(0x1d, A B, PUx(b | a))
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/* EOR */ OPC(0x1e, A B, PUx(b ^ a))
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/* SFT */ OPC(0x1f, A1 B, PUx(b >> (a & 0xf) << (a >> 4)))
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/* NIP */ OPC(0x03, GET(x) REM,PUT(x))
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/* SWP */ OPC(0x04, GET(x) GET(y),PUT(x) PUT(y))
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/* ROT */ OPC(0x05, GET(x) GET(y) GET(z),PUT(y) PUT(x) PUT(z))
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/* DUP */ OPC(0x06, GET(x),PUT(x) PUT(x))
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/* OVR */ OPC(0x07, GET(x) GET(y),PUT(y) PUT(x) PUT(y))
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/* EQU */ OPC(0x08, POx(a) POx(b),PU1(b == a))
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/* NEQ */ OPC(0x09, POx(a) POx(b),PU1(b != a))
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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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/* 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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/* 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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/* STR */ OPC(0x13, PO1(a) GET(y),POK(pc + (Sint8)a, y, 0xffff))
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/* LDA */ OPC(0x14, PO2(a),PEK(a, x, 0xffff))
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/* STA */ OPC(0x15, PO2(a) GET(y),POK(a, y, 0xffff))
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/* DEI */ OPC(0x16, PO1(a),DEI(a, x))
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/* DEO */ OPC(0x17, PO1(a) GET(y),DEO(a, y))
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/* ADD */ OPC(0x18, POx(a) POx(b),PUx(b + a))
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/* SUB */ OPC(0x19, POx(a) POx(b),PUx(b - a))
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/* MUL */ OPC(0x1a, POx(a) POx(b),PUx(b * a))
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/* DIV */ OPC(0x1b, POx(a) POx(b),PUx(a ? b / a : 0))
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/* AND */ OPC(0x1c, POx(a) POx(b),PUx(b & a))
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/* ORA */ OPC(0x1d, POx(a) POx(b),PUx(b | a))
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/* EOR */ OPC(0x1e, POx(a) POx(b),PUx(b ^ a))
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/* SFT */ OPC(0x1f, PO1(a) POx(b),PUx(b >> (a & 0xf) << (a >> 4)))
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}
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}
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}
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