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usb: use optimized DSP loop for read from module

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Lephe 2023-03-26 20:40:48 +02:00
parent 1423f40a96
commit b5f0f08183
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GPG key ID: 1BBA026E13FC0495
1 changed files with 0 additions and 23 deletions
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23
src/usb/read4.S
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@ -75,29 +75,7 @@ _usb_pipe_read4:
bf.s .unaligned bf.s .unaligned
and r3, _datasize and r3, _datasize
#define VERSION 0
.aligned: .aligned:
#if VERSION == 0
mov.l @_fifo, r3
dt r2
mov.l r3, @_data
add #4, _data
bf.s .aligned
nop
#elif VERSION == 1
mov _fifo, r3
nop
9: movs.l @r3, x0
dt r2
bf.s 9b
movs.l x0, @_data+
#elif VERSION == 2
ldrs .al_b ldrs .al_b
ldre .al_e ldre .al_e
ldrc r2 ldrc r2
@ -105,7 +83,6 @@ _usb_pipe_read4:
.al_b: movs.l @r3, x0 .al_b: movs.l @r3, x0
.al_e: movs.l x0, @_data+ .al_e: movs.l x0, @_data+
#endif
bra 3f bra 3f
nop nop