etc/uxn
0
0
Fork 0
mirror of https://git.sr.ht/~rabbits/uxn synced 2024-11-26 15:53:01 +00:00
Code Issues Projects Releases Wiki Activity

Added li1/lix

Browse source
This commit is contained in:
neauoire 2021-02-09 20:35:31 -08:00
parent a1267aea4e
commit 8b407af780
5 changed files with 27 additions and 27 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
assembler.c
View file

@ -31,7 +31,7 @@ Program p;
/* clang-format off */
char ops[][4] = {
"BRK", "LIT", "---", "---", "IOR", "IOW", "LDR", "STR",
"BRK", "---", "LI1", "LIX", "IOR", "IOW", "LDR", "STR",
"JMP", "JSR", "RTI", "RTS", "---", "---", "---", "---",
"POP", "DUP", "SWP", "OVR", "ROT", "AND", "ORA", "ROL",
"ADD", "SUB", "MUL", "DIV", "EQU", "NEQ", "GTH", "LTH"
@ -53,10 +53,8 @@ char *scpy(char *src, char *dst, int len) { int i = 0; while((dst[i] = src[i]) &
void
pushbyte(Uint8 b, int lit)
{
if(lit) {
pushbyte(0x01, 0);
pushbyte(0x01, 0);
}
if(lit)
pushbyte(0x02, 0);
p.data[p.ptr++] = b;
}
@ -64,7 +62,7 @@ void
pushshort(Uint16 s, int lit)
{
if(lit) {
pushbyte(0x01, 0);
pushbyte(0x03, 0);
pushbyte(0x02, 0);
}
pushbyte((s >> 8) & 0xff, 0);
@ -75,7 +73,7 @@ void
pushtext(char *w)
{
int i = slen(w);
pushbyte(0x01, 0);
pushbyte(0x03, 0);
pushbyte(slen(w), 0);
while(i > 0)
pushbyte(w[--i], 0);
@ -167,10 +165,13 @@ pass1(FILE *f)
case '|': addr = shex(w + 1); break;
case '@':
case ';': break;
case '.': addr += 2; break;
case '#': addr += 4; break;
case '"': addr += slen(w + 1) + 2; break;
case ',': addr += 2 + (sihx(w + 1) && slen(w + 1) == 2 ? 1 : 2); break;
case '#': addr += 4; break;
case '.': addr += 2; break;
case ',':
addr += (slen(w + 1) == 2 ? 1 : 2);
addr += (sihx(w + 1) ? slen(w + 1) / 2 : 2);
break;
default: return error("Unknown label", w);
}
}

9
cli.c
View file

@ -21,7 +21,7 @@ error(char *msg, const char *err)
}
Uint8
console_onread(Device *d, Uint8 b)
consoler(Device *d, Uint8 b)
{
(void)d;
(void)b;
@ -29,7 +29,7 @@ console_onread(Device *d, Uint8 b)
}
Uint8
console_onwrite(Device *d, Uint8 b)
consolew(Device *d, Uint8 b)
{
(void)d;
if(b)
@ -84,14 +84,13 @@ main(int argc, char **argv)
return error("Boot", "Failed");
if(!loaduxn(&u, argv[1]))
return error("Load", "Failed");
portuxn(&u, "console", console_onread, console_onwrite);
portuxn(&u, "console", consoler, consolew);
evaluxn(&u, u.vreset);
evaluxn(&u, u.vframe);
/*
echos(&u.wst, 0x40, "stack");
echom(&u.ram, 0x40, "ram");
*/
echof(&u);
return 0;
}

13
emulator.c
View file

@ -145,11 +145,8 @@ echof(Uxn *c)
void
domouse(SDL_Event *event)
{
int x = event->motion.x / ZOOM - PAD * 8;
int y = event->motion.y / ZOOM - PAD * 8;
devmouse->mem[0] = x;
devmouse->mem[1] = y;
devmouse->mem[0] = event->motion.x / ZOOM - PAD * 8;
devmouse->mem[1] = event->motion.y / ZOOM - PAD * 8;
switch(event->type) {
case SDL_MOUSEBUTTONUP:
devmouse->mem[2] = 0;
@ -219,18 +216,24 @@ mouser(Device *d, Uint8 b)
Uint8
mousew(Device *d, Uint8 b)
{
(void)d;
(void)b;
return 0;
}
Uint8
keyr(Device *d, Uint8 b)
{
(void)d;
(void)b;
return 0;
}
Uint8
keyw(Device *d, Uint8 b)
{
(void)d;
(void)b;
return 0;
}

6
examples/test.usm
View file

@ -4,11 +4,7 @@
|0100 @RESET
,01 ,00 IOW
,02 ,00 IOW
,03 ,00 IOW
,04 ,00 IOW
,05 ,00 IOW
,1234
BRK

5
uxn.c
View file

@ -31,7 +31,8 @@ Uint16 mempeek16(Uxn *u, Uint16 s) { return (u->ram.dat[s] << 8) + (u->ram.dat[s
/* I/O */
void op_brk(Uxn *u) { setflag(&u->status,FLAG_HALT, 1); }
void op_lit(Uxn *u) { u->literal += u->ram.dat[u->ram.ptr++]; }
void op_li1(Uxn *u) { u->literal += 1; }
void op_lix(Uxn *u) { u->literal += u->ram.dat[u->ram.ptr++]; }
void op_nop(Uxn *u) { printf("NOP"); (void)u; }
void op_ior(Uxn *u) { Uint8 devid = wspop8(u); Uint16 devop = wspop8(u); Device *dev = &u->dev[devid]; if(devid < u->devices) wspush8(u, dev->rfn(dev,devop)); }
void op_iow(Uxn *u) { Uint8 devid = wspop8(u); Uint16 devop = wspop8(u); Device *dev = &u->dev[devid]; if(devid < u->devices) dev->wfn(dev,devop); }
@ -79,7 +80,7 @@ void op_gth16(Uxn *u) { Uint16 a = wspop16(u), b = wspop16(u); wspush8(u, b > a)
void op_lth16(Uxn *u) { Uint16 a = wspop16(u), b = wspop16(u); wspush8(u, b < a); }
void (*ops[])(Uxn *u) = {
op_brk, op_lit, op_nop, op_nop, op_ior, op_iow, op_ldr, op_str,
op_brk, op_nop, op_li1, op_lix, op_ior, op_iow, op_ldr, op_str,
op_jmp, op_jsr, op_nop, op_rts, op_nop, op_nop, op_nop, op_nop,
op_pop, op_dup, op_swp, op_ovr, op_rot, op_and, op_ora, op_rol,
op_add, op_sub, op_mul, op_div, op_equ, op_neq, op_gth, op_lth,