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Progress merging 8/16 opcodes

This commit is contained in:
neauoire 2021-08-29 18:02:46 -07:00
parent 9a5bd42bb8
commit 51313988cf
1 changed files with 12 additions and 13 deletions
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25
src/uxn.c
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@ -26,17 +26,20 @@ static Uint16 (*pop8)(Stack *s);
static Uint16 (*pop)(Stack *s);
static void (*poke)(Uint8 *m, Uint16 a, Uint16 b);
static Uint16 (*peek)(Uint8 *m, Uint16 a);
static void (*devw)(Device *d, Uint8 a, Uint16 b);
static Uint16 (*devr)(Device *d, Uint8 a);
static void (*warp)(Uxn *u, Uint16 a);
static void (*pull)(Uxn *u);
static void push8(Stack *s, Uint16 a) { if(s->ptr == 0xff) { s->error = 2; return; } s->dat[s->ptr++] = a; }
static Uint16 pop8_keep(Stack *s) { if(s->kptr == 0) { s->error = 1; return 0; } return s->dat[--s->kptr]; }
static Uint16 pop8_nokeep(Stack *s) { if(s->ptr == 0) { s->error = 1; return 0; } return s->dat[--s->ptr]; }
static void poke8(Uint8 *m, Uint16 a, Uint16 b) { m[a] = b; }
static Uint16 peek8(Uint8 *m, Uint16 a) { return m[a]; }
static void devw8(Device *d, Uint8 a, Uint8 b) { d->dat[a & 0xf] = b; d->talk(d, a & 0x0f, 1); }
static void devw8(Device *d, Uint8 a, Uint16 b) { d->dat[a & 0xf] = b; d->talk(d, a & 0x0f, 1); }
static Uint16 devr8(Device *d, Uint8 a) { d->talk(d, a & 0x0f, 0); return d->dat[a & 0xf]; }
static void warp8(Uxn *u, Uint16 a){ u->ram.ptr += (Sint8)a; }
static void pull8(Uxn *u){ push8(u->src, peek8(u->ram.dat, u->ram.ptr++)); }
void poke16(Uint8 *m, Uint16 a, Uint16 b) { poke8(m, a, b >> 8); poke8(m, a + 1, b); }
Uint16 peek16(Uint8 *m, Uint16 a) { return (peek8(m, a) << 8) + peek8(m, a + 1); }
@ -45,9 +48,10 @@ static Uint16 pop16(Stack *s) { Uint8 a = pop8(s), b = pop8(s); return a + (b <<
static void devw16(Device *d, Uint8 a, Uint16 b) { devw8(d, a, b >> 8); devw8(d, a + 1, b); }
static Uint16 devr16(Device *d, Uint8 a) { return (devr8(d, a) << 8) + devr8(d, a + 1); }
static void warp16(Uxn *u, Uint16 a){ u->ram.ptr = a; }
static void pull16(Uxn *u){ push16(u->src, peek16(u->ram.dat, u->ram.ptr++)); u->ram.ptr++; }
/* Stack */
static void op_lit(Uxn *u) { push8(u->src, peek8(u->ram.dat, u->ram.ptr++)); }
static void op_lit(Uxn *u) { pull(u); }
static void op_inc(Uxn *u) { Uint16 a = pop(u->src); push(u->src, a + 1); }
static void op_pop(Uxn *u) { pop(u->src); }
static void op_dup(Uxn *u) { Uint16 a = pop(u->src); push(u->src, a); push(u->src, a); }
@ -72,7 +76,7 @@ static void op_str(Uxn *u) { Uint8 a = pop8(u->src); Uint8 b = pop(u->src); poke
static void op_lda(Uxn *u) { Uint16 a = pop16(u->src); push(u->src, peek(u->ram.dat, a)); }
static void op_sta(Uxn *u) { Uint16 a = pop16(u->src); Uint16 b = pop(u->src); poke(u->ram.dat, a, b); }
static void op_dei(Uxn *u) { Uint8 a = pop8(u->src); push(u->src, devr(&u->dev[a >> 4], a)); }
static void op_deo(Uxn *u) { Uint8 a = pop8(u->src), b = pop8(u->src); devw8(&u->dev[a >> 4], a, b); }
static void op_deo(Uxn *u) { Uint8 a = pop8(u->src); Uint16 b = pop(u->src); devw(&u->dev[a >> 4], a, b); }
/* Arithmetic */
static void op_add(Uxn *u) { Uint16 a = pop(u->src), b = pop(u->src); push(u->src, b + a); }
static void op_sub(Uxn *u) { Uint16 a = pop(u->src), b = pop(u->src); push(u->src, b - a); }
@ -82,21 +86,12 @@ static void op_and(Uxn *u) { Uint16 a = pop(u->src), b = pop(u->src); push(u->sr
static void op_ora(Uxn *u) { Uint16 a = pop(u->src), b = pop(u->src); push(u->src, b | a); }
static void op_eor(Uxn *u) { Uint16 a = pop(u->src), b = pop(u->src); push(u->src, b ^ a); }
static void op_sft(Uxn *u) { Uint16 a = pop8(u->src), b = pop(u->src); push(u->src, b >> (a & 0x07) << ((a & 0x70) >> 4)); }
/* Stack(16-bits) */
static void op_lit16(Uxn *u) { push16(u->src, peek16(u->ram.dat, u->ram.ptr++)); u->ram.ptr++; }
/* Memory(16-bits) */
static void op_deo16(Uxn *u) { Uint8 a = pop8(u->src); Uint16 b = pop16(u->src); devw16(&u->dev[a >> 4], a, b); }
static void (*ops[])(Uxn *u) = {
op_lit, op_inc, op_pop, op_dup, op_nip, op_swp, op_ovr, op_rot,
op_equ, op_neq, op_gth, op_lth, op_jmp, op_jnz, op_jsr, op_sth,
op_ldz, op_stz, op_ldr, op_str, op_lda, op_sta, op_dei, op_deo,
op_add, op_sub, op_mul, op_div, op_and, op_ora, op_eor, op_sft,
/* 16-bit */
op_lit16, op_inc, op_pop, op_dup, op_nip, op_swp, op_ovr, op_rot,
op_equ, op_neq, op_gth, op_lth, op_jmp, op_jnz, op_jsr, op_sth,
op_ldz, op_stz, op_ldr, op_str, op_lda, op_sta, op_dei, op_deo16,
op_add, op_sub, op_mul, op_div, op_and, op_ora, op_eor, op_sft
};
/* clang-format on */
@ -134,16 +129,20 @@ uxn_eval(Uxn *u, Uint16 vec)
peek = peek16;
poke = poke16;
devr = devr16;
devw = devw16;
warp = warp16;
pull = pull16;
} else {
pop = pop8;
push = push8;
peek = peek8;
poke = poke8;
devr = devr8;
devw = devw8;
warp = warp8;
pull = pull8;
}
(*ops[(instr & 0x1f) | ((instr & MODE_SHORT) >> 1)])(u);
(*ops[instr & 0x1f])(u);
if(u->wst.error)
return uxn_halt(u, u->wst.error, "Working-stack", instr);
if(u->rst.error)