(uxn.c)Created macros for each reg
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Devine Lu Linvega
parent
a98ba20d20
commit
3954e7b387
89
src/uxn.c
89
src/uxn.c
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@ -25,28 +25,39 @@ WITH REGARD TO THIS SOFTWARE.
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/* Microcode */
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#define REM if(_r) uxn.rst.ptr -= 1 + _2; else uxn.wst.ptr -= 1 + _2;
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#define JMI pc += uxn.ram[pc++] << 8 | uxn.ram[pc++];
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#define JMP(j) if(_2) pc = (j); else pc += (Sint8)(j);
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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 PO2(o) if(_r) o = DEC(rst) | (DEC(rst) << 8); else o = DEC(wst) | (DEC(wst) << 8);
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#define PO1(o) if(_r) o = DEC(rst); else o = DEC(wst);
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#define PUx(y) if(_2) { PU2(y) } else PU1(y)
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#define PU2(y) tt = (y); PU1(tt >> 8) PU1(tt)
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#define POP(o) if(_r) o = DEC(rst); else o = DEC(wst);
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#define PUx(y) if(_2) { tt = (y); PU1(tt >> 8) PU1(tt) } else PU1(y)
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#define PU1(y) if(_r) INC(rst) = y; else INC(wst) = y;
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#define PUR(y) if(_r) INC(wst) = y; else INC(rst) = y;
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#define GET(o,p) if(_2) PO1(p) PO1(o)
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#define PUT(y,z) PU1(y) if(_2) PU1(z)
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#define JMI pc += uxn.ram[pc++] << 8 | uxn.ram[pc++];
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#define JMP(j) if(_2) pc = (j); else pc += (Sint8)(j);
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#define DEI(i,o,p) o =emu_dei(i); if(_2) p =emu_dei(i + 1);
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#define DEO(i,y,z) emu_deo(i, y); if(_2) emu_deo(i + 1, z);
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#define PEK(i,o,p,r) o = uxn.ram[i]; if(_2) r = i + 1, p = uxn.ram[r];
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#define POK(i,y,z,r) uxn.ram[i] = y; if(_2) r = i + 1, uxn.ram[r] = z;
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/* stack-registers */
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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 X if(_2) POP(xx) POP(x)
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#define Y if(_2) POP(yy) POP(y)
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#define Z if(_2) POP(zz) POP(z)
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int
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uxn_eval(Uint16 pc)
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{
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int a,b,c,d,e,f,k;
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int a,b,c,x,xx,y,yy,z,zz,k;
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Uint8 t;
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Uint16 tt;
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if(!pc || uxn.dev[0x0f]) return 0;
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@ -60,37 +71,37 @@ 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, POx(a),PUx(a + 1))
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/* INC */ OPC(0x01, A, PUx(a + 1))
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/* POP */ OPC(0x02, REM, 0)
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/* NIP */ OPC(0x03, GET(a,b) REM,PUT(a,b))
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/* SWP */ OPC(0x04, GET(a,b) GET(c,d),PUT(a,b) PUT(c,d))
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/* ROT */ OPC(0x05, GET(a,b) GET(c,d) GET(e,f),PUT(c,d) PUT(a,b) PUT(e,f))
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/* DUP */ OPC(0x06, GET(a,b),PUT(a,b) PUT(a,b))
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/* OVR */ OPC(0x07, GET(a,b) GET(c,d),PUT(c,d) PUT(a,b) PUT(c,d))
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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),PUR(pc >> 8) PUR(pc) JMP(a))
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/* STH */ OPC(0x0f, GET(a,b),PUR(a) if(_2) PUR(b))
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/* LDZ */ OPC(0x10, PO1(a),PEK(a,b,c,t) PUT(b,c))
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/* STZ */ OPC(0x11, PO1(a) GET(b,c),POK(a,b,c,t))
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/* LDR */ OPC(0x12, PO1(a),PEK(pc+(Sint8)a,b,c,tt) PUT(b,c))
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/* STR */ OPC(0x13, PO1(a) GET(b,c),POK(pc+(Sint8)a,b,c,tt))
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/* LDA */ OPC(0x14, PO2(a),PEK(a,b,c,tt) PUT(b,c))
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/* STA */ OPC(0x15, PO2(a) GET(b,c),POK(a,b,c,tt))
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/* DEI */ OPC(0x16, PO1(a),DEI(a,b,c) PUT(b,c))
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/* DEO */ OPC(0x17, PO1(a) GET(b,c),DEO(a,b,c))
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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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/* NIP */ OPC(0x03, X REM, PUT(x,xx))
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/* SWP */ OPC(0x04, X Y, PUT(x,xx) PUT(y,yy))
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/* ROT */ OPC(0x05, X Y Z, PUT(y,yy) PUT(x,xx) PUT(z,zz))
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/* DUP */ OPC(0x06, X, PUT(x,xx) PUT(x,xx))
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/* OVR */ OPC(0x07, X Y, PUT(y,yy) PUT(x,xx) PUT(y,yy))
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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, PUR(pc >> 8) PUR(pc) JMP(a))
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/* STH */ OPC(0x0f, X, PUR(x) if(_2) PUR(xx))
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/* LDZ */ OPC(0x10, A1, PEK(a,x,xx,t) PUT(x,xx))
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/* STZ */ OPC(0x11, A1 Y, POK(a,y,yy,t))
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/* LDR */ OPC(0x12, A1, PEK(pc+(Sint8)a,x,xx,tt) PUT(x,xx))
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/* STR */ OPC(0x13, A1 Y, POK(pc+(Sint8)a,y,yy,tt))
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/* LDA */ OPC(0x14, A2, PEK(a,x,xx,tt) PUT(x,xx))
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/* STA */ OPC(0x15, A2 Y, POK(a,y,yy,tt))
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/* DEI */ OPC(0x16, A1, DEI(a,x,xx) PUT(x,xx))
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/* DEO */ OPC(0x17, A1 Y, DEO(a,y,yy))
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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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}
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}
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}
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