giomba/nes-proj
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

full dis of init exec entry. ready to implement this now.

Browse Source
This commit is contained in:
Mariano Alvira 2009-04-15 19:26:49 -04:00
parent 438c940ed7
commit a5656b81b0
3 changed files with 74 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

118
doc/ws-dis
View File

@ -5402,8 +5402,8 @@ Disassembly of section P2:
4031a0: 0040544c .word 0x0040544c
004031a4 <SMAC_InitExecuteEntry>:
4031a4: 6801 ldr r1, [r0, #0] // r1 gets where r0 points
4031a6: 1d00 adds r0, r0, #4 // increment pointer by 4 bytes
4031a4: 6801 ldr r1, [r0, #0] // r1 gets where r0 points r1 = *r0
4031a6: 1d00 adds r0, r0, #4 // increment pointer by 4 bytes r0 += 4
4031a8: 4a17 ldr r2, [pc, #92] (403208 <SMAC_InitExecuteEntry+0x64>) //r2 gets 403208: 00140001 .word 0x00140001
4031aa: 4291 cmp r1, r2 // compare r1 with r2
4031ac: d303 bcc.n 4031b6 <SMAC_InitExecuteEntry+0x12> //branch to 1: if lower
@ -5415,41 +5415,53 @@ Disassembly of section P2:
4031b8: d215 bcs.n 4031e6 <SMAC_InitExecuteEntry+0x42> // branch to 2: if high or equal
4031ba: 2900 cmp r1, #0 // check if zero (r1 is address?)
4031bc: d106 bne.n 4031cc <SMAC_InitExecuteEntry+0x28> // branch to 3: to if != 0
4031be: 6800 ldr r0, [r0, #0]
4031be: 6800 ldr r0, [r0, #0] // if == 0 do delay
4031c0: 0880 lsrs r0, r0, #2
4031c2: 0001 lsls r1, r0, #0
4031c4: 1e48 subs r0, r1, #1
4031c6: 2900 cmp r1, #0
4031c8: d1fb bne.n 4031c2 <SMAC_InitExecuteEntry+0x1e>
4031ca: e7f2 b.n 4031b2 <SMAC_InitExecuteEntry+0xe>
4031cc: 2901 cmp r1, #1 // 3:
4031ce: d118 bne.n 403202 <SMAC_InitExecuteEntry+0x5e>
4031d0: 6802 ldr r2, [r0, #0]
4031d2: 6841 ldr r1, [r0, #4]
4031d4: 3008 adds r0, #8
4031d6: 680b ldr r3, [r1, #0]
4031d8: 4393 bics r3, r2
4031da: 6800 ldr r0, [r0, #0]
4031dc: 4002 ands r2, r0
4031de: 431a orrs r2, r3
4031e0: 600a str r2, [r1, #0]
4031e2: 2004 movs r0, #4
4031ca: e7f2 b.n 4031b2 <SMAC_InitExecuteEntry+0xe>
4031cc: 2901 cmp r1, #1 // at this point r1 is between 1 and 15 inclusive
4031ce: d118 bne.n 403202 <SMAC_InitExecuteEntry+0x5e> // if !=1 return
0x00000001 command
0xaaaaaaaa
0xbbbbbbbb
0xcccccccc
4031d0: 6802 ldr r2, [r0, #0] // r2 = 0xaaaaaaaa
4031d2: 6841 ldr r1, [r0, #4] // r1 = 0xbbbbbbbb
4031d4: 3008 adds r0, #8 // r0 points to c
4031d6: 680b ldr r3, [r1, #0] // r3 = *0xbbbbbbbb
4031d8: 4393 bics r3, r2 // r3 = *0xbbbbbbbb & ~(0xaaaaaaaa)
4031da: 6800 ldr r0, [r0, #0] // r0 = 0xcccccccc
4031dc: 4002 ands r2, r0 // r2 &= r0
4031de: 431a orrs r2, r3 // r2 = (0xaaaaaaaa & 0xcccccccc) | (*0xbbbbbbbb & ~(0xaaaaaaaa))
4031e0: 600a str r2, [r1, #0] // store back in B
uint32_t buf[]
if (buf[0] == 0x00000001) {
*buf[2] = (*buf[2] & ~buf[1]) | (buf[3] & buf[1]);
}
4031e2: 2004 movs r0, #4 // return 4 bytes processed
4031e4: 4770 bx lr
4031e6: 4a09 ldr r2, [pc, #36] (40320c <SMAC_InitExecuteEntry+0x68>) //2:
4031e8: 4291 cmp r1, r2
4031ea: d20a bcs.n 403202 <SMAC_InitExecuteEntry+0x5e>
4031e6: 4a09 ldr r2, [pc, #36] (40320c <SMAC_InitExecuteEntry+0x68>) //2: r2=0x0000fff1
4031e8: 4291 cmp r1, r2 // r1 >=16
4031ea: d20a bcs.n 403202 <SMAC_InitExecuteEntry+0x5e> // if r1 >= 0xfff1 then return 0
4031ec: 4a08 ldr r2, [pc, #32] (403210 <SMAC_InitExecuteEntry+0x6c>)
4031ee: 4291 cmp r1, r2
4031f0: d007 beq.n 403202 <SMAC_InitExecuteEntry+0x5e>
4031f2: 0909 lsrs r1, r1, #4
4031f4: 1e49 subs r1, r1, #1
4031f6: 0609 lsls r1, r1, #24
4031ee: 4291 cmp r1, r2 //
4031f0: d007 beq.n 403202 <SMAC_InitExecuteEntry+0x5e> if 0xe0f (end of file) return 0
4031f2: 0909 lsrs r1, r1, #4 // r1 = r1>>4
4031f4: 1e49 subs r1, r1, #1 // r1 = r1 - 1
4031f6: 0609 lsls r1, r1, #24 // mask
4031f8: 0e09 lsrs r1, r1, #24
4031fa: 4a06 ldr r2, [pc, #24] (403214 <SMAC_InitExecuteEntry+0x70>)
4031fc: 6800 ldr r0, [r0, #0]
4031fe: 5450 strb r0, [r2, r1]
4031fa: 4a06 ldr r2, [pc, #24] (403214 <SMAC_InitExecuteEntry+0x70>) r2 = &u8RamValues
4031fc: 6800 ldr r0, [r0, #0] // r0 = next value in buffer 2nd half of pair
4031fe: 5450 strb r0, [r2, r1] // store this in u8RamValues
403200: e7d7 b.n 4031b2 <SMAC_InitExecuteEntry+0xe>
403202: 2000 movs r0, #0
403202: 2000 movs r0, #0 // return 0
403204: 4770 bx lr
403206: 46c0 nop (mov r8, r8)
403208: 00140001 .word 0x00140001
@ -5506,42 +5518,52 @@ Disassembly of section P2:
40327a: 4288 cmp r0, r1
40327c: d105 bne.n 40328a <SMAC_InitFromFlash+0x72> //branch to 2: if !=
40327e: a802 add r0, sp, #8
403280: 88c1 ldrh r1, [r0, #6]
403280: 88c1 ldrh r1, [r0, #6] // sp+8 0x00000abc sp+12 0x0100 03fc r1 = 0x0100 = 256
403282: 22ff movs r2, #255
403284: 1c92 adds r2, r2, #2
403286: 4291 cmp r1, r2
403288: d303 bcc.n 403292 <SMAC_InitFromFlash+0x7a>
40328a: 2001 movs r0, #1 // 2:
403286: 4291 cmp r1, r2 // compare r1 to 257
403288: d303 bcc.n 403292 <SMAC_InitFromFlash+0x7a> // if r1 < 257 (it is) goto 3:
40328a: 2001 movs r0, #1 // 2: if r1 > 256 lock flash and return 0
40328c: f403 fefa bl 7084 <NVM_SetSVar>
403290: e7e0 b.n 403254 <SMAC_InitFromFlash+0x3c>
403292: 2408 movs r4, #8
403294: 8885 ldrh r5, [r0, #4]
403296: 1f2d subs r5, r5, #4
403298: e006 b.n 4032a8 <SMAC_InitFromFlash+0x90>
403292: 2408 movs r4, #8 // 3: r4 = 8
403294: 8885 ldrh r5, [r0, #4] // r5 = 0x03fc
403296: 1f2d subs r5, r5, #4 // r5 = r5 - 4 = 0x03f8
403298: e006 b.n 4032a8 <SMAC_InitFromFlash+0x90> // goto 4:
// top of loop
40329a: a806 add r0, sp, #24
40329c: f7ff ff82 bl 4031a4 <SMAC_InitExecuteEntry> // so it looks like flash has entries it exectues...
4032a0: 2800 cmp r0, #0
4032a2: d00f beq.n 4032c4 <SMAC_InitFromFlash+0xac>
4032a4: 0080 lsls r0, r0, #2
4032a6: 1824 adds r4, r4, r0
4032a8: 42ac cmp r4, r5
4032a2: d00f beq.n 4032c4 <SMAC_InitFromFlash+0xac> // if executeentry returned 0, goto 6:
4032a4: 0080 lsls r0, r0, #2 // r0 = return value from executeentry * 4
4032a6: 1824 adds r4, r4, r0 // add number of bytes executed to r4
4032a8: 42ac cmp r4, r5 // 4: if r4 >= r5 goto unlock_exit
4032aa: d210 bcs.n 4032ce <SMAC_InitFromFlash+0xb6>
4032ac: 2010 movs r0, #16
4032ac: 2010 movs r0, #16 // 16 bytes = 4 commands
4032ae: b501 push {r0, lr}
4032b0: 1933 adds r3, r6, r4
4032b2: aa08 add r2, sp, #32
4032b0: 1933 adds r3, r6, r4 // r6=0x1f000 + r4 offset
4032b2: aa08 add r2, sp, #32 // buffer is on the stack
4032b4: a802 add r0, sp, #8
4032b6: 7801 ldrb r1, [r0, #0]
4032b8: 2000 movs r0, #0
4032b6: 7801 ldrb r1, [r0, #0] // type from nv_detect
4032b8: 2000 movs r0, #0 // arg0
4032ba: f403 fd55 bl 6d68 <NVM_Read>
// err = nvm_read(gNvmInternalInterface_c, type, (uint8_t *)buf, 0x1F000, NBYTES);
4032be: b002 add sp, #8
4032c0: 2800 cmp r0, #0
4032c2: d0ea beq.n 40329a <SMAC_InitFromFlash+0x82>
4032c4: 2001 movs r0, #1
4032c2: d0ea beq.n 40329a <SMAC_InitFromFlash+0x82> // if it worked, goto top of loop
4032c4: 2001 movs r0, #1 // 6: lock and return
4032c6: f403 fedd bl 7084 <NVM_SetSVar>
4032ca: 0020 lsls r0, r4, #0
4032cc: e003 b.n 4032d6 <SMAC_InitFromFlash+0xbe>
4032ce: 2001 movs r0, #1
4032ce: 2001 movs r0, #1 // 5:
4032d0: f403 fed8 bl 7084 <NVM_SetSVar>
4032d4: 1d20 adds r0, r4, #4
4032d6: b00a add sp, #40 //exit:

6
src/maca.c
View File

@ -320,9 +320,9 @@ const uint8_t ctov_4c[16] = {
/* tested good */
#define ADDR_CHAN1 0x80009800
#define ADDR_CHAN2 ADDR_CHAN1+12
#define ADDR_CHAN3 ADDR_CHAN1+16
#define ADDR_CHAN4 ADDR_CHAN1+48
#define ADDR_CHAN2 (ADDR_CHAN1+12)
#define ADDR_CHAN3 (ADDR_CHAN1+16)
#define ADDR_CHAN4 (ADDR_CHAN1+48)
void set_channel(uint8_t chan) {
volatile uint32_t tmp;

2
tests/nvm-read.c
View File

@ -29,7 +29,7 @@ void put_hex32(uint32_t x);
const uint8_t hex[16]={'0','1','2','3','4','5','6','7',
'8','9','a','b','c','d','e','f'};
#define NBYTES 128
#define NBYTES 1024
__attribute__ ((section ("startup")))
void main(void) {
nvmType_t type=0;