參數(shù)資料
型號(hào): AP77016-B08
英文描述: USAP77016-B08 AAC Audio Decoder Middleware | User's Manual[10/2002]
中文描述: USAP77016 - B08 AAC音頻解碼中間件|用戶手冊(cè)[10/2002]
文件頁(yè)數(shù): 42/47頁(yè)
文件大?。?/td> 291K
代理商: AP77016-B08
APPENDIX SAMPLE PROGRAM SOURCE
User’s Manual U15152EJ2V0UM
42
sam_call.asm
(2/2)
r0 = r0 | r2 ;
ret ;
_not_read:
clr(r0) ;
ret ;
/***********************************
function
aac_dec_fillbits
input
r1 req size [word]
dp0 user_input_bs write ptr
dn0 0x01
dmx INPUT_BUFSIZE-1
output
dp0 user_input_bs write ptr
***********************************/
aac_dec_fillbits:
#if INPUT_BUFSIZE<(12288/16+1)
Error too small INPUT_BUFSIZE
#endif
r2 = *user_file_size+0:x ;
r2l = *user_file_size+1:x ; total data size
r0 = *user_loaded_size+0:x ;
r0l = *user_loaded_size+1:x ; already loaded data size
r2 = r2 - r0 ;
if(r2 <= 0) jmp _load_end ; if all data loaded return
r2 = r2 + 1 ;
r2 = r2 sra 1 ; conver byte to word
r3 = r2 - r1 ;
if(r3 < 0) r1 = r2 ;
loop r1l { ;
r0 = *HDT:x ;
*dp0%% = r0h ;
}
r0 = *user_loaded_size+0:x ;
r0l = *user_loaded_size+1:x ; already loaded data size
r1 = r1 sll 1 ;
r0 += r1 ;
*user_loaded_size+0:x = r0h ;
*user_loaded_size+1:x = r0l ;
_load_end:
clr(r0) ;
ret ;
end
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