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uxn
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Moved dev code out of uxn

This commit is contained in:
neauoire 2021-02-09 09:00:27 -08:00
parent de22c37e07
commit 220c3676e5
3 changed files with 21 additions and 17 deletions
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9
cli.c
View File

@ -21,13 +21,18 @@ error(char *msg, const char *err)
}
void
console_onread(void)
console_onread(Uint8 *b)
{
(void)b;
}
void
console_onwrite(void)
console_onwrite(Uint8 *b)
{
if(b) {
printf("%c", *b);
*b = 0x00;
}
}
void

23
uxn.c
View File

@ -114,15 +114,12 @@ lituxn(Uxn *u, Uint8 instr)
}
int
devuxn(Uxn *u) /* experimental */
devuxn(Uxn *u)
{
int i;
for(i = 0; i < u->devices; ++i) {
Uint16 addr = u->dev[i].w;
if(u->ram.dat[addr]) {
printf("%c", u->ram.dat[addr]);
u->ram.dat[addr] = 0;
}
u->dev[i].wfn(&u->ram.dat[u->dev[i].w]);
u->dev[i].rfn(&u->ram.dat[u->dev[i].r]);
}
return 1;
}
@ -147,10 +144,8 @@ opcuxn(Uxn *u, Uint8 instr)
}
int
parse(Uxn *u) /* TODO: Rename */
stepuxn(Uxn *u, Uint8 instr)
{
Uint8 instr = u->ram.dat[u->ram.ptr++];
u->counter++;
if(u->literal > 0)
return lituxn(u, instr);
else
@ -162,8 +157,12 @@ evaluxn(Uxn *u, Uint16 vec)
{
u->ram.ptr = vec;
setflag(&u->status, FLAG_HALT, 0);
while(!(u->status & FLAG_HALT) && parse(u))
;
while(!(u->status & FLAG_HALT)) {
Uint8 instr = u->ram.dat[u->ram.ptr++];
if(!stepuxn(u, instr))
return 0;
u->counter++;
}
return 1;
}
@ -198,7 +197,7 @@ loaduxn(Uxn *u, char *filepath)
/* to start: evaluxn(u, u->vreset); */
int
portuxn(Uxn *u, Uint16 r, Uint16 w, void (*onread)(), void (*onwrite)())
portuxn(Uxn *u, Uint16 r, Uint16 w, void (*onread)(Uint8 *), void (*onwrite)(Uint8 *))
{
Device *d = &u->dev[u->devices++];
d->r = r;

6
uxn.h
View File

@ -36,8 +36,8 @@ typedef struct {
typedef struct {
Uint16 r, w;
void (*rfn)(void);
void (*wfn)(void);
void (*rfn)(Uint8 *);
void (*wfn)(Uint8 *);
} Device;
typedef struct {
@ -54,4 +54,4 @@ int getflag(Uint8 *status, char flag);
int loaduxn(Uxn *c, char *filepath);
int bootuxn(Uxn *c);
int evaluxn(Uxn *u, Uint16 vec);
int portuxn(Uxn *u, Uint16 r, Uint16 w, void (*onread)(), void (*onwrite)());
int portuxn(Uxn *u, Uint16 r, Uint16 w, void (*onread)(Uint8 *), void (*onwrite)(Uint8 *));