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PicoVideoRead optimization
[picodrive.git]
/
Pico
/
cd
/
Memory.s
diff --git
a/Pico/cd/Memory.s
b/Pico/cd/Memory.s
index
1b9fe96
..
9aba56d
100644
(file)
--- a/
Pico/cd/Memory.s
+++ b/
Pico/cd/Memory.s
@@
-126,6
+126,7
@@
m_s68k_decode_write_table:
.extern z80Read8
.extern OtherRead16
.extern PicoVideoRead
.extern z80Read8
.extern OtherRead16
.extern PicoVideoRead
+.extern PicoVideoRead8
.extern Read_CDC_Host
.extern m68k_reg_write8
.extern OtherWrite16
.extern Read_CDC_Host
.extern m68k_reg_write8
.extern OtherWrite16
@@
-611,13
+612,7
@@
m_m68k_read8_vdp:
tst r0, #0x70000
tsteq r0, #0x000e0
bxne lr @ invalid read
tst r0, #0x70000
tsteq r0, #0x000e0
bxne lr @ invalid read
- stmfd sp!,{r0,lr}
- bic r0, r0, #1
- bl PicoVideoRead @ TODO: implement it in asm
- ldmfd sp!,{r1,lr}
- tst r1, #1
- moveq r0, r0, lsr #8
- bx lr
+ b PicoVideoRead8
m_m68k_read8_ram:
m_m68k_read8_ram: