Made a backup of tnl core

This commit is contained in:
neauoire 2023-10-30 11:35:46 -07:00
parent d167b88996
commit 5abea12b46
2 changed files with 86 additions and 148 deletions

View File

@ -12,122 +12,110 @@ WITH REGARD TO THIS SOFTWARE.
*/
/* Registers
[ . ][ . ][ . ][ L ][ N ][ T ] <
[ . ][ . ][ . ][ H2 ][ T ] <
[ Z ][ Y ][ X ][ L ][ N ][ T ] <
[ . ][ . ][ . ][ H2 ][ . ] <
[ L2 ][ N2 ][ T2 ] <
*/
#define T *sp
#define N *(sp-1)
#define L *(sp-2)
#define T2 PEEK2((sp-1))
#define H2 PEEK2((sp-2))
#define N2 PEEK2((sp-3))
#define L2 PEEK2((sp-5))
#define HALT(c) { return emu_halt(u, ins, c, pc - 1); }
#define T *(s->dat + s->ptr)
#define N *(s->dat + (Uint8)(s->ptr - 1))
#define L *(s->dat + (Uint8)(s->ptr - 2))
#define X *(s->dat + (Uint8)(s->ptr - 3))
#define Y *(s->dat + (Uint8)(s->ptr - 4))
#define Z *(s->dat + (Uint8)(s->ptr - 5))
#define T2 (N << 8 | T)
#define H2 (L << 8 | N)
#define N2 (X << 8 | L)
#define L2 (Z << 8 | Y)
#define T2_(v) { r = (v); T = r; N = r >> 8; }
#define N2_(v) { r = (v); L = r; X = r >> 8; }
#define L2_(v) { r = (v); Y = r; Z = r >> 8; }
#define DEI(p) (dei_masks[p] ? emu_dei(u, (p)) : u->dev[(p)])
#define DEO(p, v) { u->dev[p] = v; if(deo_masks[p]) emu_deo(u, p); }
#define FLIP { s = ins & 0x40 ? &u->wst : &u->rst; }
#define SET(x, y) { if(x > s->ptr) HALT(1) tmp = (x & k) + y + s->ptr; if(tmp > 254) HALT(2) s->ptr = tmp; sp = s->dat + tmp - 1; }
#define PUT(o, v) { *(sp - o) = v; }
#define PUT2(o, v) { tmp = (v); POKE2(sp - 1 - o, tmp); }
#define SHIFT(y) { s->ptr += (y); }
#define SET(x, y) { SHIFT((ins & 0x80) ? x + y : y) }
int
uxn_eval(Uxn *u, Uint16 pc)
{
int t, n, l, k, tmp, ins, opc;
Uint8 *ram = u->ram, *sp;
Stack *s;
int t, n, l, r;
Uint8 *ram = u->ram, *rr;
if(!pc || u->dev[0x0f]) return 0;
for(;;) {
ins = ram[pc++];
k = ins & 0x80 ? 0xff : 0;
s = ins & 0x40 ? &u->rst : &u->wst;
sp = s->dat + s->ptr - 1;
opc = !(ins & 0x1f) ? (0 - (ins >> 5)) & 0xff : ins & 0x3f;
switch(opc) {
int ins = ram[pc++];
Stack *s = ins & 0x40 ? &u->rst : &u->wst;
switch(ins & 0x1f ? ins & 0x3f : ins << 4) {
/* IMM */
case 0x00: /* BRK */ return 1;
case 0xff: /* JCI */ if(!s->dat[--s->ptr]) { pc += 2; break; }
case 0xfe: /* JMI */ pc += PEEK2(ram + pc) + 2; break;
case 0xfd: /* JSI */ SET(0, 2) PUT2(0, pc + 2) pc += PEEK2(ram + pc) + 2; break;
case 0xfc: /* LIT */ SET(0, 1) PUT(0, ram[pc++]) break;
case 0xfb: /* LIT2 */ SET(0, 2) PUT2(0, PEEK2(ram + pc)) pc += 2; break;
case 0xfa: /* LITr */ SET(0, 1) PUT(0, ram[pc++]) break;
case 0xf9: /* LIT2r */ SET(0, 2) PUT2(0, PEEK2(ram + pc)) pc += 2; break;
case 0x000: /* BRK */ return 1;
case 0x200: /* JCI */ t=T; SHIFT(-1) if(!t) { pc += 2; break; } /* else fallthrough */
case 0x400: /* JMI */ rr = ram + pc; pc += PEEK2(rr) + 2; break;
case 0x600: /* JSI */ SHIFT( 2) T2_(pc + 2); rr = ram + pc; pc += PEEK2(rr) + 2; break;
case 0x800: /* LIT */ case 0xc00: SHIFT( 1) T = ram[pc++]; break;
case 0xa00: /* LIT2 */ case 0xe00: SHIFT( 2) rr = ram + pc; T2_(PEEK2(rr)) pc += 2; break;
/* ALU */
case 0x01: /* INC */ t=T; SET(1, 0) PUT(0, t + 1) break;
case 0x21: t=T2; SET(2, 0) PUT2(0, t + 1) break;
case 0x01: /* INC */ t=T; SET(1, 0) T = t + 1; break;
case 0x21: /* INC2 */ t=T2; SET(2, 0) T2_(t + 1) break;
case 0x02: /* POP */ SET(1,-1) break;
case 0x22: SET(2,-2) break;
case 0x03: /* NIP */ t=T; SET(2,-1) PUT(0, t) break;
case 0x23: t=T2; SET(4,-2) PUT2(0, t) break;
case 0x04: /* SWP */ t=T;n=N; SET(2, 0) PUT(0, n) PUT(1, t) break;
case 0x24: t=T2;n=N2; SET(4, 0) PUT2(0, n) PUT2(2, t) break;
case 0x05: /* ROT */ t=T;n=N;l=L; SET(3, 0) PUT(0, l) PUT(1, t) PUT(2, n) break;
case 0x25: t=T2;n=N2;l=L2; SET(6, 0) PUT2(0, l) PUT2(2, t) PUT2(4, n) break;
case 0x06: /* DUP */ t=T; SET(1, 1) PUT(0, t) PUT(1, t) break;
case 0x26: t=T2; SET(2, 2) PUT2(0, t) PUT2(2, t) break;
case 0x07: /* OVR */ t=T;n=N; SET(2, 1) PUT(0, n) PUT(1, t) PUT(2, n) break;
case 0x27: t=T2;n=N2; SET(4, 2) PUT2(0, n) PUT2(2, t) PUT2(4, n) break;
case 0x08: /* EQU */ t=T;n=N; SET(2,-1) PUT(0, n == t) break;
case 0x28: t=T2;n=N2; SET(4,-3) PUT(0, n == t) break;
case 0x09: /* NEQ */ t=T;n=N; SET(2,-1) PUT(0, n != t) break;
case 0x29: t=T2;n=N2; SET(4,-3) PUT(0, n != t) break;
case 0x0a: /* GTH */ t=T;n=N; SET(2,-1) PUT(0, n > t) break;
case 0x2a: t=T2;n=N2; SET(4,-3) PUT(0, n > t) break;
case 0x0b: /* LTH */ t=T;n=N; SET(2,-1) PUT(0, n < t) break;
case 0x2b: t=T2;n=N2; SET(4,-3) PUT(0, n < t) break;
case 0x22: /* POP2 */ SET(2,-2) break;
case 0x03: /* NIP */ t=T; SET(2,-1) T = t; break;
case 0x23: /* NIP2 */ t=T2; SET(4,-2) T2_(t) break;
case 0x04: /* SWP */ t=T;n=N; SET(2, 0) T = n; N = t; break;
case 0x24: /* SWP2 */ t=T2;n=N2; SET(4, 0) T2_(n) N2_(t) break;
case 0x05: /* ROT */ t=T;n=N;l=L; SET(3, 0) T = l; N = t; L = n; break;
case 0x25: /* ROT2 */ t=T2;n=N2;l=L2; SET(6, 0) T2_(l) N2_(t) L2_(n) break;
case 0x06: /* DUP */ t=T; SET(1, 1) T = t; N = t; break;
case 0x26: /* DUP2 */ t=T2; SET(2, 2) T2_(t) N2_(t) break;
case 0x07: /* OVR */ t=T;n=N; SET(2, 1) T = n; N = t; L = n; break;
case 0x27: /* OVR2 */ t=T2;n=N2; SET(4, 2) T2_(n) N2_(t) L2_(n) break;
case 0x08: /* EQU */ t=T;n=N; SET(2,-1) T = n == t; break;
case 0x28: /* EQU2 */ t=T2;n=N2; SET(4,-3) T = n == t; break;
case 0x09: /* NEQ */ t=T;n=N; SET(2,-1) T = n != t; break;
case 0x29: /* NEQ2 */ t=T2;n=N2; SET(4,-3) T = n != t; break;
case 0x0a: /* GTH */ t=T;n=N; SET(2,-1) T = n > t; break;
case 0x2a: /* GTH2 */ t=T2;n=N2; SET(4,-3) T = n > t; break;
case 0x0b: /* LTH */ t=T;n=N; SET(2,-1) T = n < t; break;
case 0x2b: /* LTH2 */ t=T2;n=N2; SET(4,-3) T = n < t; break;
case 0x0c: /* JMP */ t=T; SET(1,-1) pc += (Sint8)t; break;
case 0x2c: t=T2; SET(2,-2) pc = t; break;
case 0x2c: /* JMP2 */ t=T2; SET(2,-2) pc = t; break;
case 0x0d: /* JCN */ t=T;n=N; SET(2,-2) if(n) pc += (Sint8)t; break;
case 0x2d: t=T2;n=L; SET(3,-3) if(n) pc = t; break;
case 0x0e: /* JSR */ t=T; SET(1,-1) FLIP SET(0,2) PUT2(0, pc) pc += (Sint8)t; break;
case 0x2e: t=T2; SET(2,-2) FLIP SET(0,2) PUT2(0, pc) pc = t; break;
case 0x0f: /* STH */ t=T; SET(1,-1) FLIP SET(0,1) PUT(0, t) break;
case 0x2f: t=T2; SET(2,-2) FLIP SET(0,2) PUT2(0, t) break;
case 0x10: /* LDZ */ t=T; SET(1, 0) PUT(0, ram[t]) break;
case 0x30: t=T; SET(1, 1) PUT2(0, PEEK2(ram + t)) break;
case 0x2d: /* JCN2 */ t=T2;n=L; SET(3,-3) if(n) pc = t; break;
case 0x0e: /* JSR */ t=T; SET(1,-1) FLIP SHIFT(2) T2_(pc) pc += (Sint8)t; break;
case 0x2e: /* JSR2 */ t=T2; SET(2,-2) FLIP SHIFT(2) T2_(pc) pc = t; break;
case 0x0f: /* STH */ t=T; SET(1,-1) FLIP SHIFT(1) T = t; break;
case 0x2f: /* STH2 */ t=T2; SET(2,-2) FLIP SHIFT(2) T2_(t) break;
case 0x10: /* LDZ */ t=T; SET(1, 0) T = ram[t]; break;
case 0x30: /* LDZ2 */ t=T; SET(1, 1) rr = ram + t; T2_(PEEK2(rr)) break;
case 0x11: /* STZ */ t=T;n=N; SET(2,-2) ram[t] = n; break;
case 0x31: t=T;n=H2; SET(3,-3) POKE2(ram + t, n) break;
case 0x12: /* LDR */ t=T; SET(1, 0) PUT(0, ram[pc + (Sint8)t]) break;
case 0x32: t=T; SET(1, 1) PUT2(0, PEEK2(ram + pc + (Sint8)t)) break;
case 0x31: /* STZ2 */ t=T;n=H2; SET(3,-3) rr = ram + t; POKE2(rr, n) break;
case 0x12: /* LDR */ t=T; SET(1, 0) T = ram[pc + (Sint8)t]; break;
case 0x32: /* LDR2 */ t=T; SET(1, 1) rr = ram + pc + (Sint8)t; T2_(PEEK2(rr)) break;
case 0x13: /* STR */ t=T;n=N; SET(2,-2) ram[pc + (Sint8)t] = n; break;
case 0x33: t=T;n=H2; SET(3,-3) POKE2(ram + pc + (Sint8)t, n) break;
case 0x14: /* LDA */ t=T2; SET(2,-1) PUT(0, ram[t]) break;
case 0x34: t=T2; SET(2, 0) PUT2(0, PEEK2(ram + t)) break;
case 0x33: /* STR2 */ t=T;n=H2; SET(3,-3) rr = ram + pc + (Sint8)t; POKE2(rr, n) break;
case 0x14: /* LDA */ t=T2; SET(2,-1) T = ram[t]; break;
case 0x34: /* LDA2 */ t=T2; SET(2, 0) rr = ram + t; T2_(PEEK2(rr)) break;
case 0x15: /* STA */ t=T2;n=L; SET(3,-3) ram[t] = n; break;
case 0x35: t=T2;n=N2; SET(4,-4) POKE2(ram + t, n) break;
case 0x16: /* DEI */ t=T; SET(1, 0) PUT(0, DEI(t)) break;
case 0x36: t=T; SET(1, 1) PUT(1, DEI(t)) PUT(0, DEI(t + 1)) break;
case 0x35: /* STA2 */ t=T2;n=N2; SET(4,-4) rr = ram + t; POKE2(rr, n) break;
case 0x16: /* DEI */ t=T; SET(1, 0) T = DEI(t); break;
case 0x36: /* DEI2 */ t=T; SET(1, 1) T = DEI(t + 1); N = DEI(t); break;
case 0x17: /* DEO */ t=T;n=N; SET(2,-2) DEO(t, n) break;
case 0x37: t=T;n=N;l=L; SET(3,-3) DEO(t, l) DEO((t + 1), n) break;
case 0x18: /* ADD */ t=T;n=N; SET(2,-1) PUT(0, n + t) break;
case 0x38: t=T2;n=N2; SET(4,-2) PUT2(0, n + t) break;
case 0x19: /* SUB */ t=T;n=N; SET(2,-1) PUT(0, n - t) break;
case 0x39: t=T2;n=N2; SET(4,-2) PUT2(0, n - t) break;
case 0x1a: /* MUL */ t=T;n=N; SET(2,-1) PUT(0, n * t) break;
case 0x3a: t=T2;n=N2; SET(4,-2) PUT2(0, n * t) break;
case 0x1b: /* DIV */ t=T;n=N; SET(2,-1) if(!t) HALT(3) PUT(0, n / t) break;
case 0x3b: t=T2;n=N2; SET(4,-2) if(!t) HALT(3) PUT2(0, n / t) break;
case 0x1c: /* AND */ t=T;n=N; SET(2,-1) PUT(0, n & t) break;
case 0x3c: t=T2;n=N2; SET(4,-2) PUT2(0, n & t) break;
case 0x1d: /* ORA */ t=T;n=N; SET(2,-1) PUT(0, n | t) break;
case 0x3d: t=T2;n=N2; SET(4,-2) PUT2(0, n | t) break;
case 0x1e: /* EOR */ t=T;n=N; SET(2,-1) PUT(0, n ^ t) break;
case 0x3e: t=T2;n=N2; SET(4,-2) PUT2(0, n ^ t) break;
case 0x1f: /* SFT */ t=T;n=N; SET(2,-1) PUT(0, n >> (t & 0xf) << (t >> 4)) break;
case 0x3f: t=T;n=H2; SET(3,-1) PUT2(0, n >> (t & 0xf) << (t >> 4)) break;
case 0x37: /* DEO2 */ t=T;n=N;l=L; SET(3,-3) DEO(t, l) DEO((t + 1), n) break;
case 0x18: /* ADD */ t=T;n=N; SET(2,-1) T = n + t; break;
case 0x38: /* ADD2 */ t=T2;n=N2; SET(4,-2) T2_(n + t) break;
case 0x19: /* SUB */ t=T;n=N; SET(2,-1) T = n - t; break;
case 0x39: /* SUB2 */ t=T2;n=N2; SET(4,-2) T2_(n - t) break;
case 0x1a: /* MUL */ t=T;n=N; SET(2,-1) T = n * t; break;
case 0x3a: /* MUL2 */ t=T2;n=N2; SET(4,-2) T2_(n * t) break;
case 0x1b: /* DIV */ t=T;n=N; SET(2,-1) T = t ? n / t : 0; break;
case 0x3b: /* DIV2 */ t=T2;n=N2; SET(4,-2) T2_(t ? n / t : 0) break;
case 0x1c: /* AND */ t=T;n=N; SET(2,-1) T = n & t; break;
case 0x3c: /* AND2 */ t=T2;n=N2; SET(4,-2) T2_(n & t) break;
case 0x1d: /* ORA */ t=T;n=N; SET(2,-1) T = n | t; break;
case 0x3d: /* ORA2 */ t=T2;n=N2; SET(4,-2) T2_(n | t) break;
case 0x1e: /* EOR */ t=T;n=N; SET(2,-1) T = n ^ t; break;
case 0x3e: /* EOR2 */ t=T2;n=N2; SET(4,-2) T2_(n ^ t) break;
case 0x1f: /* SFT */ t=T;n=N; SET(2,-1) T = n >> (t & 0xf) << (t >> 4); break;
case 0x3f: /* SFT2 */ t=T;n=H2; SET(3,-1) T2_(n >> (t & 0xf) << (t >> 4)) break;
}
}
}
int
uxn_boot(Uxn *u, Uint8 *ram)
{
Uint32 i;
char *cptr = (char *)u;
for(i = 0; i < sizeof(*u); i++)
cptr[i] = 0;
u->ram = ram;
return 1;
}

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@ -1,50 +0,0 @@
/*
Copyright (c) 2021 Devine Lu Linvega
Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE.
*/
/* clang-format off */
#define POKE2(d, v) { (d)[0] = (v) >> 8; (d)[1] = (v); }
#define PEEK2(d) ((d)[0] << 8 | (d)[1])
#define DEO(p, v) { u->dev[p] = v; if((deo_mask[p >> 4] >> (p & 0xf)) & 0x1) emu_deo(u, p); }
#define DEI(p) ((dei_mask[(p) >> 4] >> ((p) & 0xf)) & 0x1 ? emu_dei(u, (p)) : u->dev[(p)])
/* clang-format on */
#define PAGE_PROGRAM 0x0100
typedef unsigned char Uint8;
typedef signed char Sint8;
typedef unsigned short Uint16;
typedef signed short Sint16;
typedef unsigned int Uint32;
typedef struct {
Uint8 dat[255], ptr;
} Stack;
typedef struct Uxn {
Uint8 *ram, dev[256];
Stack wst, rst;
Uint8 (*dei)(struct Uxn *u, Uint8 addr);
void (*deo)(struct Uxn *u, Uint8 addr);
} Uxn;
/* required functions */
extern Uint8 emu_dei(Uxn *u, Uint8 addr);
extern void emu_deo(Uxn *u, Uint8 addr);
extern int emu_halt(Uxn *u, Uint8 instr, Uint8 err, Uint16 addr);
extern Uint16 dev_vers[0x10], dei_mask[0x10], deo_mask[0x10];
/* built-ins */
int uxn_boot(Uxn *u, Uint8 *ram);
int uxn_eval(Uxn *u, Uint16 pc);