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uxn
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Use device masks for DEI

This commit is contained in:
Devine Lu Linvega 2023-03-04 10:51:23 -08:00
parent aeceaf75bf
commit 3457f665a7
2 changed files with 6 additions and 6 deletions
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9
src/uxn-fast.c
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@ -35,6 +35,7 @@ WITH REGARD TO THIS SOFTWARE.
#define PUSH(stack, v) { stack->dat[stack->ptr++] = (v); }
#define PUSH2(stack, v) { tmp = (v); stack->dat[stack->ptr] = (v) >> 8; stack->dat[stack->ptr + 1] = (v); stack->ptr += 2; }
#define SEND(a, b) { u->dev[a] = b; if((send_events[(a) >> 4] >> ((a) & 0xf)) & 0x1) u->deo(u, a); }
#define LISTEN(a, b) { PUT(a, ((receive_events[(b) >> 4] >> ((b) & 0xf)) & 0x1) ? u->dei(u, b) : u->dev[b]) }
static
Uint16 send_events[] = {
@ -42,8 +43,8 @@ Uint16 send_events[] = {
0x0000, 0x0000, 0xa260, 0xa260, 0x0000, 0x0000, 0x0000, 0x0000 };
static
Uint16 receive_events[] = {
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 };
0x0000, 0x0000, 0x0014, 0x0014, 0x0014, 0x0014, 0x0014, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x07fd, 0x0000, 0x0000, 0x0000 };
int
uxn_eval(Uxn *u, Uint16 pc)
@ -110,8 +111,8 @@ uxn_eval(Uxn *u, Uint16 pc)
case 0x14: /* LDA */ t=T2; INC(2,-1) PUT(0, u->ram[t]) break;
case 0x35: /* STA2 */ t=T2;n=N2; DEC(4, 0) POKE16(u->ram + t, n) break;
case 0x15: /* STA */ t=T2;n=L; DEC(3, 0) u->ram[t] = n; break;
case 0x36: /* DEI2 */ t=T; INC(1, 1) PUT(1, u->dei(u, t)) PUT(0, u->dei(u, t + 1)) break;
case 0x16: /* DEI */ t=T; INC(1, 0) PUT(0, u->dei(u, t)) break;
case 0x36: /* DEI2 */ t=T; INC(1, 1) LISTEN(1, t) LISTEN(0, t + 1) break;
case 0x16: /* DEI */ t=T; INC(1, 0) LISTEN(0, t) break;
case 0x37: /* DEO2 */ t=T;n=N;l=L; DEC(3, 0) SEND(t, l) SEND(t + 1, n) break;
case 0x17: /* DEO */ t=T;n=N; DEC(2, 0) SEND(t, n) break;
case 0x38: /* ADD2 */ t=T2;n=N2; INC(4,-2) PUT2(0, n + t) break;

3
src/uxncli.c
View File

@ -50,8 +50,7 @@ console_deo(Uint8 *d, Uint8 port)
static Uint8
emu_dei(Uxn *u, Uint8 addr)
{
Uint8 p = addr & 0x0f, d = addr & 0xf0;
switch(d) {
switch(addr & 0xf0) {
case 0xc0: return datetime_dei(u, addr);
}
return u->dev[addr];