d6
/
uxn
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use calloc for memory array

This commit is contained in:
neauoire 2022-01-01 15:20:48 -08:00
parent 22c6e07fca
commit cca1253376
6 changed files with 35 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
projects/examples/devices/console.tal
View File

@ -1,7 +1,9 @@
( dev/console )
|00 @System $e &debug
|10 @Console $8 &write
%HALT { #010f DEO }
%EMIT { #18 DEO }
%DEBUG { ;print-hex/byte JSR2 #0a EMIT }
%DEBUG2 { ;print-hex JSR2 #0a EMIT }
( init )
@ -9,11 +11,28 @@
;hello-word
&while
( send ) LDAk .Console/write DEO
( send ) LDAk EMIT
#20 EMIT
DUP2 ;print-hex JSR2
#20 EMIT
LDAk ;print-hex/byte JSR2
#0a EMIT
INC2 LDAk ,&while JCN
POP2
( show debugger ) #01 .System/debug DEO
( stop ) HALT
BRK
@print-hex ( value* -- )
SWP ,&byte JSR
&byte ( byte -- )
STHk #04 SFT ,&parse JSR #18 DEO
STHr #0f AND ,&parse JSR #18 DEO
JMP2r
&parse ( byte -- char ) DUP #09 GTH ,&above JCN #30 ADD JMP2r
&above #57 ADD JMP2r
JMP2r
@hello-word "Hello 20 "Uxn!

3
src/uxn-fast.c
View File

@ -4018,12 +4018,13 @@ error:
}
int
uxn_boot(Uxn *u)
uxn_boot(Uxn *u, Uint8 *memory)
{
unsigned int i;
char *cptr = (char *)u;
for(i = 0; i < sizeof(*u); ++i)
cptr[i] = 0x00;
u->ram.dat = memory;
return 1;
}

3
src/uxn.c
View File

@ -136,12 +136,13 @@ uxn_eval(Uxn *u, Uint16 vec)
/* clang-format on */
int
uxn_boot(Uxn *u)
uxn_boot(Uxn *u, Uint8 *memory)
{
Uint32 i;
char *cptr = (char *)u;
for(i = 0; i < sizeof(*u); ++i)
cptr[i] = 0x00;
u->ram.dat = memory;
return 1;
}

4
src/uxn.h
View File

@ -24,7 +24,7 @@ typedef struct {
typedef struct {
Uint16 ptr;
Uint8 dat[65536];
Uint8 *dat;
} Memory;
typedef struct Device {
@ -44,7 +44,7 @@ typedef struct Uxn {
void poke16(Uint8 *m, Uint16 a, Uint16 b);
Uint16 peek16(Uint8 *m, Uint16 a);
int uxn_boot(Uxn *c);
int uxn_boot(Uxn *c, Uint8 *memory);
int uxn_eval(Uxn *u, Uint16 vec);
int uxn_halt(Uxn *u, Uint8 error, char *name, int id);
Device *uxn_port(Uxn *u, Uint8 id, Uint8 (*deifn)(Device *, Uint8), void (*deofn)(Device *, Uint8));

5
src/uxncli.c
View File

@ -1,4 +1,5 @@
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
#include "uxn.h"
@ -147,7 +148,7 @@ load(Uxn *u, char *filepath)
FILE *f;
int r;
if(!(f = fopen(filepath, "rb"))) return 0;
r = fread(u->ram.dat + PAGE_PROGRAM, 1, sizeof(u->ram.dat) - PAGE_PROGRAM, f);
r = fread(u->ram.dat + PAGE_PROGRAM, 1, 0xffff - PAGE_PROGRAM, f);
fclose(f);
if(r < 1) return 0;
fprintf(stderr, "Loaded %s\n", filepath);
@ -160,7 +161,7 @@ main(int argc, char **argv)
Uxn u;
int i, loaded = 0;
if(!uxn_boot(&u))
if(!uxn_boot(&u, (Uint8 *)calloc(0xffff, sizeof(Uint8))))
return error("Boot", "Failed");
/* system */ devsystem = uxn_port(&u, 0x0, system_dei, system_deo);

5
src/uxnemu.c
View File

@ -273,7 +273,7 @@ load(Uxn *u, char *rom)
SDL_RWops *f;
int r;
if(!(f = SDL_RWFromFile(rom, "rb"))) return 0;
r = f->read(f, u->ram.dat + PAGE_PROGRAM, 1, sizeof(u->ram.dat) - PAGE_PROGRAM);
r = f->read(f, u->ram.dat + PAGE_PROGRAM, 1, 0xffff - PAGE_PROGRAM);
f->close(f);
if(r < 1) return 0;
fprintf(stderr, "Loaded %s\n", rom);
@ -284,7 +284,8 @@ load(Uxn *u, char *rom)
static int
start(Uxn *u, char *rom)
{
if(!uxn_boot(u))
Uint8 *memory = (Uint8 *)calloc(0xffff, sizeof(Uint8));
if(!uxn_boot(u, memory))
return error("Boot", "Failed to start uxn.");
if(!load(u, rom))
return error("Boot", "Failed to load rom.");