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实现插值替换的代码

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This commit is contained in:
anod 2023-03-11 12:28:43 +08:00
parent ad1962892c
commit fc7c12c257
1 changed files with 31 additions and 9 deletions
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40
source/arm11/cheat.c
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@ -19,10 +19,11 @@ typedef instruction_t* CodeLocation;
typedef struct {
u32 chtId; // acl_chtid_t
u16 entLen; // entArr.length
acl_index_t *entArr; // 下标表示hole，值表示key
acl_index_t *entArr; // 下标表示hole，值表示key *改为分两段，前段key，后段overwrite value
} CurrentCheat;
static CurrentCheat setting = {0, 0, NULL};
#define CCHT_OVERWRITE(c) (&c.entArr[c.entLen])
cheat_error_t init_current_cheat( u32 id, u16 len )
{
@ -33,9 +34,9 @@ cheat_error_t init_current_cheat( u32 id, u16 len )
setting.entLen = len;
if( len )
{
acl_index_t *p = (acl_index_t*)malloc( len * sizeof(acl_index_t) );
acl_index_t *p = (acl_index_t*)malloc( len * sizeof(acl_index_t) * 2 );
if( p == NULL ) return CCHT_NO_MEM;
memset(p, 0, len*sizeof(acl_index_t));
memset(p, 0, len*sizeof(acl_index_t)*2);
setting.entArr = p;
}
return CCHT_OK;
@ -56,6 +57,23 @@ cheat_error_t put_current_cheat( acl_entryid_t entid )
else return CCHT_INVALID;
}
cheat_error_t overwrite_current_cheat( acl_entryid_t id, u16 value )
{
if( setting.chtId == 0 ) return CCHT_NOT_INIT;
u16 index = ENT_HOLE(id);
u16 option = ENT_KEY(id);
if( index == 0 ) return CCHT_INVALID;
if( index <= setting.entLen )
{
u16 *valarr = CCHT_OVERWRITE(setting);
valarr[index-1] = value;
return CCHT_OK;
}
else return CCHT_INVALID;
}
cheat_error_t info_current_cheat( u32 *id, u32 *len )
{
if( setting.chtId == 0 ) return CCHT_NOT_INIT;
@ -76,11 +94,6 @@ cheat_error_t get_current_cheat( u32 index, acl_entryid_t *id )
else return CCHT_INVALID;
}
cheat_error_t overwrite_current_cheat( acl_entryid_t id, u16 value )
{
}
cheat_error_t include_current_cheat( acl_entryid_t id )
{
if( setting.chtId == 0 ) return CCHT_NOT_INIT;
@ -408,6 +421,7 @@ static void rom_append_cheatproc( int mode, CodeLocation start, u16 bindkey, u32
memcpy( start, MEM_OVERWRITE_INSTR, MO_INSTR_SIZE );
start += MO_INSTR_LEN;
u16 overwrite = CCHT_OVERWRITE(setting);
for( int i=0; i < setting.entLen; ++i )
{
u16 val = setting.entArr[i];
@ -415,9 +429,17 @@ static void rom_append_cheatproc( int mode, CodeLocation start, u16 bindkey, u32
{
acl_elemlen_t len;
acl_select_entry( MAKE_ENT(i+1, val), &len );
val = overwrite[i];
for( int j=0; j < len; ++j )
{
acl_entry_get_armcode(j, start++);
if( (val > 0) && (j & 1) )
{
acl_armcode_t temp;
acl_entry_get_armcode(j, &temp);
*start++ = (temp & ~(0xff)) | (val & 0xff);
val >>= 8;
}
else acl_entry_get_armcode(j, start++);
}
}
}