aboutsummaryrefslogtreecommitdiff
path: root/backends/platform/ds/arm9/source/fat/io_scsd_asm.s
diff options
context:
space:
mode:
Diffstat (limited to 'backends/platform/ds/arm9/source/fat/io_scsd_asm.s')
-rw-r--r--backends/platform/ds/arm9/source/fat/io_scsd_asm.s521
1 files changed, 0 insertions, 521 deletions
diff --git a/backends/platform/ds/arm9/source/fat/io_scsd_asm.s b/backends/platform/ds/arm9/source/fat/io_scsd_asm.s
index f138c07205..498cbb96c2 100644
--- a/backends/platform/ds/arm9/source/fat/io_scsd_asm.s
+++ b/backends/platform/ds/arm9/source/fat/io_scsd_asm.s
@@ -519,524 +519,3 @@ MemoryCard_IsInserted:
- .TEXT
-@--------------------------------sd data--------------------------------
-.equ sd_comadd,0x9800000
-.equ sd_dataadd,0x9000000
-.equ sd_dataradd,0x9100000
-@-----------------viod sd_data_write_s(u16 *buff,u16* crc16buff)-------------------
- .ALIGN
- .GLOBAL sd_data_write_s
- .CODE 32
-sd_data_write_s:
- stmfd r13!,{r4-r5}
- mov r5,#512
- mov r2,#sd_dataadd
-sd_data_write_busy:
- ldrh r3,[r2]
- tst r3,#0x100
- beq sd_data_write_busy
-
- ldrh r3,[r2]
-
- mov r3,#0 @star bit
- strh r3,[r2]
-sd_data_write_loop:
- ldrh r3,[r0],#2
- add r3,r3,r3,lsl #20
- mov r4,r3,lsl #8
- stmia r2,{r3-r4}
-
- subs r5, r5, #2
- bne sd_data_write_loop
-
- cmp r1,#0
- movne r0,r1
- movne r1,#0
- movne r5,#8
- bne sd_data_write_loop
-
- mov r3,#0xff @end bit
- strh r3,[r2]
-sd_data_write_loop2:
- ldrh r3,[r2]
- tst r3,#0x100
- bne sd_data_write_loop2
-
- ldmia r2,{r3-r4}
-
- ldmfd r13!,{r4-r5}
- bx r14
-@-----------------end sd_data_write_s-------------------
-
-@----------void sd_data_read_s(u16 *buff)-------------
- .ALIGN
- .GLOBAL sd_data_read_s
- .CODE 32
-sd_data_read_s:
- stmfd r13!,{r4}
- mov r1,#sd_dataradd
-sd_data_read_loop1:
- ldrh r3,[r1] @star bit
- tst r3,#0x100
- bne sd_data_read_loop1
- mov r2,#512
-sd_data_read_loop:
- ldmia r1,{r3-r4}
- mov r3,r4,lsr #16
- strh r3 ,[r0],#2
-
- ldmia r1,{r3-r4}
- mov r3,r4,lsr #16
- strh r3 ,[r0],#2
-
- ldmia r1,{r3-r4}
- mov r3,r4,lsr #16
- strh r3 ,[r0],#2
-
- ldmia r1,{r3-r4}
- mov r3,r4,lsr #16
- strh r3 ,[r0],#2
-
- ldmia r1,{r3-r4}
- mov r3,r4,lsr #16
- strh r3 ,[r0],#2
-
- ldmia r1,{r3-r4}
- mov r3,r4,lsr #16
- strh r3 ,[r0],#2
-
- ldmia r1,{r3-r4}
- mov r3,r4,lsr #16
- strh r3 ,[r0],#2
-
- ldmia r1,{r3-r4}
- mov r3,r4,lsr #16
- strh r3 ,[r0],#2
-
- subs r2, r2, #16
- bne sd_data_read_loop
-
- ldmia r1,{r3-r4} @crc 16
- ldmia r1,{r3-r4}
- ldmia r1,{r3-r4}
- ldmia r1,{r3-r4}
- ldrh r3,[r1] @end bit
- ldmfd r13!,{r4}
- bx r14
-@----------end sd_data_read_s-------------
-
-@------void sd_com_crc16_s(u16* buff,u16 num,u16* crc16buff)
- .ALIGN
- .GLOBAL sd_crc16_s
- .CODE 32
-sd_crc16_s:
- stmfd r13!,{r4-r9}
- mov r9,r2
-
- mov r3,#0
- mov r4,#0
- mov r5,#0
- mov r6,#0
-
- ldr r7,=0x80808080
- ldr r8,=0x1021
- mov r1,r1,lsl #3
-sd_crc16_loop:
-
- tst r7,#0x80
- ldrneb r2,[r0],#1
-
- mov r3,r3,lsl #1
- tst r3,#0x10000
- eorne r3,r3,r8
- tst r2,r7,lsr #24
- eorne r3,r3,r8
-
- mov r4,r4,lsl #1
- tst r4,#0x10000
- eorne r4,r4,r8
- tst r2,r7,lsr #25
- eorne r4,r4,r8
-
- mov r5,r5,lsl #1
- tst r5,#0x10000
- eorne r5,r5,r8
- tst r2,r7,lsr #26
- eorne r5,r5,r8
-
- mov r6,r6,lsl #1
- tst r6,#0x10000
- eorne r6,r6,r8
- tst r2,r7,lsr #27
- eorne r6,r6,r8
-
- mov r7,r7,ror #4
- subs r1,r1,#4
- bne sd_crc16_loop
-
- mov r2,r9
- mov r8,#16
-sd_crc16_write_data:
- mov r7,r7,lsl #4
- tst r3,#0x8000
- orrne r7,r7,#8
- tst r4,#0x8000
- orrne r7,r7,#4
- tst r5,#0x8000
- orrne r7,r7,#2
- tst r6,#0x8000
- orrne r7,r7,#1
-
- mov r3,r3,lsl #1
- mov r4,r4,lsl #1
- mov r5,r5,lsl #1
- mov r6,r6,lsl #1
-
- sub r8,r8,#1
- tst r8,#1
- streqb r7,[r2],#1
- cmp r8,#0
- bne sd_crc16_write_data
-
- ldmfd r13!,{r4-r9}
- bx r14
-@------end sd_com_crc16_s-----------------------------------
-
-@--------------u8 sd_crc7_s(u16* buff,u16 num)----------------------------
- .ALIGN
- .GLOBAL sd_crc7_s
- .CODE 32
-sd_crc7_s:
- stmfd r13!,{r4}
-
- mov r3,#0
- ldr r4,=0x80808080
- mov r1,r1,lsl #3 @ *8
-sd_crc7_loop:
- tst r4,#0x80
- ldrneb r2,[r0],#1
-
- mov r3,r3,lsl #1
-
- tst r3,#0x80
- eorne r3,r3,#0x9
-
- tst r2,r4,lsr #24
- eorne r3,r3,#0x9
-
- mov r4,r4,ror #1
- subs r1,r1,#1
- bne sd_crc7_loop
-
- mov r3,r3,lsl #1
- add r0,r3,#1
- ldmfd r13!,{r4}
- bx r14
-@--------------end sd_crc7_s----------------------------
-
-@--------------sd_com_read_s(u16* buff,u32 num)------------------
- .ALIGN
- .GLOBAL sd_com_read_s
- .CODE 32
-
-sd_com_read_s:
- stmfd r13!,{r4-r6}
- mov r2,#sd_comadd
-sd_com_read_loop1:
- ldrh r3,[r2] @star bit
- tst r3,#1
- bne sd_com_read_loop1
-
-sd_com_read_loop:
- ldmia r2,{r3-r6}
- subs r1, r1, #1
- bne sd_com_read_loop
- ldmfd r13!,{r4-r6}
- bx r14
-@--------------end sd_com_read_s------------------
-
-@-------------------void sd_com_write_s(u16* buff,u32 num)-----------------
-
- .ALIGN
- .GLOBAL sd_com_write_s
- .CODE 32
-sd_com_write_s:
- stmfd r13!,{r4-r6}
-
- mov r2,#sd_comadd
-sd_com_write_busy:
- ldrh r3,[r2]
- tst r3,#0x1
- beq sd_com_write_busy
-
- ldrh r3,[r2]
-
-sd_com_write_loop:
- ldrb r3,[r0],#1
- add r3,r3,r3,lsl #17
- mov r4,r3,lsl #2
- mov r5,r4,lsl #2
- mov r6,r5,lsl #2
- stmia r2,{r3-r6}
- subs r1, r1, #1
- bne sd_com_write_loop
- ldmfd r13!,{r4-r6}
-
- bx r14
-@-------------------end sd_com_write_s-----------------
-
-@-----------------void send_clk(u32 num)---------
- .ALIGN
- .GLOBAL send_clk
- .CODE 32
-
-send_clk:
- mov r1,#sd_comadd
-send_clk_loop1:
- ldrh r3,[r1]
- subs r0,r0,#1
- bne send_clk_loop1
- bx r14
-@-----------------end send_clk---------
-
-@---------------------------void SDCommand(u8 command,u8 num,u32 sector)--------------------
- .ALIGN
- .GLOBAL SDCommand
- .CODE 32
-@void SDCommand(u8 command,u8 num,u32 sector )
-@{
-@ u8 databuff[6];
-@ register u8 *char1;
-@ register u8 *char2;
-@
-@ char1=(u8*)(((u32)&sector)+3);
-@ char2=(u8*)databuff;
-@ *char2++=coma+0x40;
-@ *char2++=*char1--;
-@ *char2++=*char1--;
-@ *char2++=*char1--;
-@ *char2++=*char1;
-@ *char2=sd_crc7_s((u32)databuff,5);
-@
-@ sd_com_write_s((u32)databuff,6);
-@
-@}
-SDCommand:
- stmfd r13!,{r14}
-
- sub r13,r13,#16
- add r0,r0,#0x40
- strb r0,[r13,#4]
-
- mov r1,r2,lsr #24
- strb r1,[r13,#5]
- mov r1,r2,lsr #16
- strb r1,[r13,#6]
- mov r1,r2,lsr #8
- strb r1,[r13,#7]
- strb r2,[r13,#8]
- add r0,r13,#4
- mov r1,#5
- bl sd_crc7_s
- strb r0,[r13,#9]
- add r0,r13,#4
- mov r1,#6
- bl sd_com_write_s
-
- add r13,r13,#16
- ldmfd r13!,{r15}
-@ bx r14
-@---------------------------end SDCommand--------------------
-
-@----------void ReadSector(u16 *buff,u32 sector,u8 readnum)-------------
- .ALIGN
- .GLOBAL ReadSector @ r0:Srcp r1:num ok
- .CODE 32
-
-@void ReadSector(u16 *buff,u32 sector,u8 readnum)
-@{
-@ register u16 i,j;
-@ i=readnum;
-@ sectno<<=9;
-@ SDCommand(18,0,sector);
-@ for (j=0;j<i ; j++)
-@ {
-@ sd_data_read_s((u32)buff+j*512);
-@ }
-@ SDCommand(12,0,0);
-@ get_resp();
-@ send_clk(0x10);
-@
-@}
-ReadSector:
- stmfd r13!,{r4-r6,r14}
-
- mov r4,r0
- mov r5,r2
-
- mov r2,r1,lsl #9
- mov r0,#18
- mov r1,#0
- bl SDCommand
- mov r6,#0
-beginforj_ReadSector:
- cmp r6,r5
- bge endforj_ReadSector
- mov r0,r4
- add r0,r0,r6,lsl #9
- bl sd_data_read_s
- add r6,r6,#1
- b beginforj_ReadSector
-endforj_ReadSector:
- mov r0,#12
- mov r1,#0
- mov r2,#0
- bl SDCommand
- bl get_resp
- mov r0,#0x10
- bl send_clk
- mov r0,#1
- ldmfd r13!,{r4-r6,r15}
-@ bx r14
-@----------end ReadSector------------
-
-@-----------void get_resp(void)-------------------
-
-
- .ALIGN
- .GLOBAL get_resp @ r0:Srcp r1:num ok
- .CODE 32
-get_resp:
-
- stmfd r13!,{r14}
- mov r1,#6
- bl sd_com_read_s
- ldmfd r13!,{r15}
-@-----------end get_resp-------------------
-
-
-@---------------void WriteSector(u16 *buff,u32 sector,u8 writenum)---------------------
- .ALIGN
- .GLOBAL WriteSector @ r0:Srcp r1:num ok
- .CODE 32
-
-@void WriteSector(u16 *buff,u32 sector,u8 writenum)
-@{
-@ register u16 i,j;
-@ u16 crc16[5];
-@ i=writenum;
-@
-@ sectno<<=9;
-@
-@ SDCommand(25,0,sector);
-@ get_resp();
-@ send_clk(0x10);
-@
-@ for (j=0;j<i ; j++)
-@ {
-@ sd_crc16_s((u32)(u32)buff+j*512,512,(u32)crc16);
-@ sd_data_write_s((u32)buff+j*512,(u32)crc16);
-@ send_clk(0x10);
-@ }
-@ SDCommand(12,0,0);
-@ get_resp();
-@ send_clk(0x10);
-@ while((*(u16*)sd_dataadd &0x0100)==0);
-@
-@}
-@
-WriteSector:
- stmfd r13!,{r4-r6,r14}
-
- sub r13,r13,#20
-
- mov r4,r0
- mov r5,r2
-
- mov r2,r1,lsl #9
- mov r0,#25
- mov r1,#0
- bl SDCommand
- bl get_resp
- mov r0,#0x10
- bl send_clk
- mov r6,#0
-
-beginforj_WriteSector:
- cmp r6,r5
- bge endforj_WriteSector
- mov r0,r4
- add r0,r0,r6,lsl #9
- mov r1,#512
- add r2,r13,#4
- bl sd_crc16_s
- mov r0,r4
- add r0,r0,r6,lsl #9
- add r1,r13,#4
- bl sd_data_write_s
- mov r0,#0x10
- bl send_clk
- add r6,r6,#1
- b beginforj_WriteSector
-endforj_WriteSector:
- mov r0,#12
- mov r1,#0
- mov r2,#0
- bl SDCommand
- bl get_resp
- mov r0,#0x10
- bl send_clk
- ldr r0,=sd_dataadd
-beginwhile_WriteSector:
- ldrh r1,[r0]
- tst r1,#0x0100
- beq beginwhile_WriteSector
- mov r0,#1
- add r13,r13,#20
- ldmfd r13!,{r4-r6,r15}
-@---------------end WriteSector--------------------
-
-@----------------void InitSCMode(void)---------------
- .ALIGN
- .GLOBAL InitSCMode
- .CODE 32
-InitSCMode:
- mvn r0,#0x0F6000000
- sub r0,r0,#0x01
- mov r1,#0x0A500
- add r1,r1,#0x5A
- strh r1,[r0]
- strh r1,[r0]
- mov r2,#3
- strh r2,[r0]
- strh r2,[r0]
- bx r14
-@----------------end InitSCMode ---------------
-
-@----------------bool MemoryCard_IsInserted(void)---------------
- .ALIGN
- .GLOBAL MemoryCard_IsInserted
- .CODE 32
-
-MemoryCard_IsInserted:
- ldr r0,=sd_comadd
- ldrh r1,[r0]
- tst r1,#0x300
- moveq r0,#1
- movne r0,#0
- bx r14
-@----------------end MemoryCard_IsInserted---------------
-
- .END
-
-
-
-
-
-
-
-
-
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-02 05:35:24 +0000