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Added a copy of abc core with joint pops/pushes

neauoire authored on 09/08/2023 19:12:31
Showing 2 changed files
etc/cores/uxn-abc-join.c
History View file @ 61896ab
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new file mode 100644
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@@ -0,0 +1,107 @@
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+#include "uxn.h"
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+
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+/*
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+Copyright (u) 2022-2023 Devine Lu Linvega, Andrew Alderwick, Andrew Richards
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+
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+Permission to use, copy, modify, and distribute this software for any
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+purpose with or without fee is hereby granted, provided that the above
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+copyright notice and this permission notice appear in all copies.
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+
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+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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+WITH REGARD TO THIS SOFTWARE.
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+*/
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+
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+#define HALT(c)      { return emu_halt(u, ins, (c), pc - 1); }
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+#define FLIP         { s = ins & 0x40 ? &u->wst : &u->rst; }
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+#define JUMP(x)      { if(m2) pc = (x); else pc += (Sint8)(x); }
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+#define POKE(x, y)   { if(m2) { POKE2(ram + x, y) } else { ram[(x)] = (y); } }
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+#define PEEK(o, x)   { if(m2) { o = PEEK2(ram + x); } else o = ram[(x)]; }
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+#define DEVW(p, y)   { if(m2) { DEO(p, y >> 8) DEO((p + 1), y) } else { DEO(p, y) } }
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+#define DEVR(o, p)   { if(m2) { o = DEI(p) << 8 | DEI(p + 1); } else { o = DEI(p); } }
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+
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+#define PUSH1(y)     { if(s->ptr == 0xff) HALT(2) s->dat[s->ptr++] = (y); }
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+#define PUSH2(y)     { if((tsp = s->ptr) >= 0xfe) HALT(2) t = (y); POKE2(&s->dat[tsp], t); s->ptr = tsp + 2; }
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+#define PUSHx(y)     { if(m2) { PUSH2(y) } else { PUSH1(y) } }
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+#define PUSH11(y, z) { if(s->ptr >= 0xfe) HALT(2) s->dat[s->ptr++] = (y); s->dat[s->ptr++] = (z); }
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+#define PUSH22(y, z) { if((tsp = s->ptr) >= 0xfc) HALT(2) POKE2(&s->dat[tsp], (y)); POKE2(&s->dat[tsp+2], (z)); s->ptr = tsp + 4; }
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+#define PUSHxx(y, z) { if(m2) { PUSH22(y, z) } else { PUSH11(y, z) } }
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+
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+#define POP1(o)      { if(*sp == 0x00) HALT(1) o = s->dat[--*sp]; }
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+#define POP2(o)      { if((tsp = *sp) <= 0x01) HALT(1) o = PEEK2(&s->dat[tsp - 2]); *sp = tsp - 2; }
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+#define POPx(o)      { if(m2) { POP2(o) } else { POP1(o) } }
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+#define POP11(o, p)  { if(*sp <= 0x01) HALT(1) o = s->dat[--*sp]; p = s->dat[--*sp]; }
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+#define POP22(o, p)  { if((tsp = *sp) <= 0x03) HALT(1) o = PEEK2(&s->dat[tsp - 2]); p = PEEK2(&s->dat[tsp - 4]); *sp = tsp - 4; }
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+#define POPxx(o, p)  { if(m2) { POP22(o, p) } else { POP11(o, p) } }
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+
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+int
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+uxn_eval(Uxn *u, Uint16 pc)
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+{
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+	Uint8 ins, opc, m2, ksp, tsp, *sp, *ram = u->ram;
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+	Uint16 a, b, c, t;
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+	Stack *s;
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+	if(!pc || u->dev[0x0f]) return 0;
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+	for(;;) {
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+		ins = ram[pc++];
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+		/* modes */
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+		opc = ins & 0x1f;
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+		m2 = ins & 0x20;
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+		s = ins & 0x40 ? &u->rst : &u->wst;
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+		if(ins & 0x80) { ksp = s->ptr; sp = &ksp; } else sp = &s->ptr;
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+		/* Opcodes */
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+		switch(opc - (!opc * (ins >> 5))) {
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+		/* Immediate */
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+		case -0x0: /* BRK   */ return 1;
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+		case -0x1: /* JCI   */ POP1(b) if(!b) { pc += 2; break; } /* else fallthrough */
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+		case -0x2: /* JMI   */ pc += PEEK2(ram + pc) + 2; break;
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+		case -0x3: /* JSI   */ PUSH2(pc + 2) pc += PEEK2(ram + pc) + 2; break;
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+		case -0x4: /* LIT   */
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+		case -0x6: /* LITr  */ PUSH1(ram[pc++]) break;
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+		case -0x5: /* LIT2  */
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+		case -0x7: /* LIT2r */ PUSH2(PEEK2(ram + pc)) pc += 2; break;
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+		/* ALU */
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+		case 0x01: /* INC */ POPx(a) PUSHx(a + 1) break;
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+		case 0x02: /* POP */ POPx(a) break;
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+		case 0x03: /* NIP */ POPxx(a, b) PUSHx(a) break;
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+		case 0x04: /* SWP */ POPxx(a, b) PUSHxx(a, b) break;
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+		case 0x05: /* ROT */ POPxx(a, b) POPx(c) PUSHxx(b, a) PUSHx(c) break;
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+		case 0x06: /* DUP */ POPx(a) PUSHxx(a, a) break;
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+		case 0x07: /* OVR */ POPxx(a, b) PUSHxx(b, a) PUSHx(b) break;
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+		case 0x08: /* EQU */ POPxx(a, b) PUSH1(b == a) break;
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+		case 0x09: /* NEQ */ POPxx(a, b) PUSH1(b != a) break;
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+		case 0x0a: /* GTH */ POPxx(a, b) PUSH1(b > a) break;
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+		case 0x0b: /* LTH */ POPxx(a, b) PUSH1(b < a) break;
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+		case 0x0c: /* JMP */ POPx(a) JUMP(a) break;
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+		case 0x0d: /* JCN */ POPx(a) POP1(b) if(b) JUMP(a) break;
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+		case 0x0e: /* JSR */ POPx(a) FLIP PUSH2(pc) JUMP(a) break;
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+		case 0x0f: /* STH */ POPx(a) FLIP PUSHx(a) break;
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+		case 0x10: /* LDZ */ POP1(a) PEEK(b, a) PUSHx(b) break;
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+		case 0x11: /* STZ */ POP1(a) POPx(b) POKE(a, b) break;
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+		case 0x12: /* LDR */ POP1(a) PEEK(b, pc + (Sint8)a) PUSHx(b) break;
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+		case 0x13: /* STR */ POP1(a) POPx(b) POKE(pc + (Sint8)a, b) break;
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+		case 0x14: /* LDA */ POP2(a) PEEK(b, a) PUSHx(b) break;
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+		case 0x15: /* STA */ POP2(a) POPx(b) POKE(a, b) break;
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+		case 0x16: /* DEI */ POP1(a) DEVR(b, a) PUSHx(b) break;
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+		case 0x17: /* DEO */ POP1(a) POPx(b) DEVW(a, b) break;
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+		case 0x18: /* ADD */ POPxx(a, b) PUSHx(b + a) break;
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+		case 0x19: /* SUB */ POPxx(a, b) PUSHx(b - a) break;
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+		case 0x1a: /* MUL */ POPxx(a, b) PUSHx((Uint32)b * a) break;
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+		case 0x1b: /* DIV */ POPxx(a, b) if(!a) HALT(3) PUSHx(b / a) break;
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+		case 0x1c: /* AND */ POPxx(a, b) PUSHx(b & a) break;
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+		case 0x1d: /* ORA */ POPxx(a, b) PUSHx(b | a) break;
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+		case 0x1e: /* EOR */ POPxx(a, b) PUSHx(b ^ a) break;
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+		case 0x1f: /* SFT */ POP1(a) POPx(b) PUSHx(b >> (a & 0xf) << (a >> 4)) break;
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+		}
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+	}
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+}
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+
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+int
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+uxn_boot(Uxn *u, Uint8 *ram)
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+{
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+	Uint32 i;
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+	char *cptr = (char *)u;
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+	for(i = 0; i < sizeof(*u); i++)
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+		cptr[i] = 0;
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+	u->ram = ram;
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+	return 1;
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+
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+}
etc/cores/uxn.h
History View file @ 61896ab
... ... 
@@ -9,17 +9,17 @@ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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 WITH REGARD TO THIS SOFTWARE.
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 */
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-#define PAGE_PROGRAM 0x0100
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-
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 /* clang-format off */
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 #define POKE2(d, v) { (d)[0] = (v) >> 8; (d)[1] = (v); }
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 #define PEEK2(d) ((d)[0] << 8 | (d)[1])
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-#define DEO(p, value) { u->dev[p] = value; if((deo_mask[p >> 4] >> (p & 0xf)) & 0x1) emu_deo(u, p); }
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+#define DEO(p, v) { u->dev[p] = v; if((deo_mask[p >> 4] >> (p & 0xf)) & 0x1) emu_deo(u, p); }
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 #define DEI(p) ((dei_mask[(p) >> 4] >> ((p) & 0xf)) & 0x1 ? emu_dei(u, (p)) : u->dev[(p)])
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 /* clang-format on */
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+#define PAGE_PROGRAM 0x0100
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+
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 typedef unsigned char Uint8;
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 typedef signed char Sint8;
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 typedef unsigned short Uint16;
... ... 
@@ -42,8 +42,7 @@ typedef struct Uxn {
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 extern Uint8 emu_dei(Uxn *u, Uint8 addr);
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 extern void emu_deo(Uxn *u, Uint8 addr);
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 extern int emu_halt(Uxn *u, Uint8 instr, Uint8 err, Uint16 addr);
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-extern Uint16 dei_mask[];
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-extern Uint16 deo_mask[];
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+extern Uint16 dev_vers[0x10], dei_mask[0x10], deo_mask[0x10];
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 /* built-ins */
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