142 lines
6.3 KiB
Text
142 lines
6.3 KiB
Text
Entries in ram are processed by SMACinitfrommemory and executeentry
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(which does the work). I suspect that these entries are loaded in from
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the rom from the rom_data_init call in the beginning stub. For now
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we'll do the simple thing of performing the actions they do, but for
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real it would be better to load out from ROM and execute the entries
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in a similar way. That way, if the cal data changes in the ROM, our
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code should still work.
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When radioinit first starts it seems to do checks for a 24MHZ clock
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and if the buck should be enabled. Assuming 24MHZ and no buck the next
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things it does is 5 entries in cal1 (40 bytes, 4 bytes per word, = 10
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words, 2 words per entry = 5 entrys)
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0x80003048
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0x00000f78
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0x8000304c
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0x00607707
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the next entry is zero addr with val 0x000161a8... this is a delay
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entry. Loop here 0x000161a8 times. then return.
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0x00000000
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0x000161a8
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Then two more memory stuffs:
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0x8000a050
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0x0000047b
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0x8000a054
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0x0000007b
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then it seems like the emulator dies on the stack munging they do at
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the end of InitFromMemory... but I think I've decoded the entry
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enough to figure out the rest.
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then they do one entry of r4 base + 48 (gRadioTOCCal2_24MHz_c[0])
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0x80009000
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0x80050100
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then they do 11 entries in cal3 and reg replacment (first two have delays)
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0x402b8c <gRadioTOCCal3_c>: 0x80009400 0x00020017 0x80009a04 0x8185a0a4
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0x402b9c <gRadioTOCCal3_c+16>: 0x80009a00 0x8c900025 0x00000000 0x00011194
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0x402bac <gRadioTOCCal3_c+32>: 0x80009a00 0x8c900021 0x80009a00 0x8c900027
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0x402bbc <gRadioTOCCal3_c+48>: 0x00000000 0x00011194 0x80009a00 0x8c90002b
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0x402bcc <gRadioTOCCal3_c+64>: 0x80009a00 0x8c90002f 0x00000000 0x00011194
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0x402bdc <gRadioTOCCal3_c+80>: 0x80009a00 0x8c900000
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then 4 entries from r5+24 (buffer_radio_init and cal5)
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0x80009400 0x00000017
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0x405230 <gRadioTOCCal5+8>: 0x8000a050 0x00000000 0x8000a054 0x00000000
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0x405240 <gRadioTOCCal5+24>: 0x80003048 0x00000f00
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then 43 entries from r4+152 (reg replacement)
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0x402bec <gRadioInit_RegReplacement_c>: 0x80004118 0x00180012 0x80009204 0x00000605
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0x402bfc <gRadioInit_RegReplacement_c+16>: 0x80009208 0x00000504 0x8000920c 0x00001111
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0x402c0c <gRadioInit_RegReplacement_c+32>: 0x80009210 0x0fc40000 0x80009300 0x20046000
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0x402c1c <gRadioInit_RegReplacement_c+48>: 0x80009304 0x4005580c 0x80009308 0x40075801
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0x402c2c <gRadioInit_RegReplacement_c+64>: 0x8000930c 0x4005d801 0x80009310 0x5a45d800
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0x402c3c <gRadioInit_RegReplacement_c+80>: 0x80009314 0x4a45d800 0x80009318 0x40044000
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0x402c4c <gRadioInit_RegReplacement_c+96>: 0x80009380 0x00106000 0x80009384 0x00083806
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0x402c5c <gRadioInit_RegReplacement_c+112>: 0x80009388 0x00093807 0x8000938c 0x0009b804
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0x402c6c <gRadioInit_RegReplacement_c+128>: 0x80009390 0x000db800 0x80009394 0x00093802
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0x402c7c <gRadioInit_RegReplacement_c+144>: 0x8000a008 0x00000015 0x8000a018 0x00000002
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0x402c8c <gRadioInit_RegReplacement_c+160>: 0x8000a01c 0x0000000f 0x80009424 0x0000aaa0
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0x402c9c <gRadioInit_RegReplacement_c+176>: 0x80009434 0x01002020 0x80009438 0x016800fe
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0x402cac <gRadioInit_RegReplacement_c+192>: 0x8000943c 0x8e578248 0x80009440 0x000000dd
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0x402cbc <gRadioInit_RegReplacement_c+208>: 0x80009444 0x00000946 0x80009448 0x0000035a
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0x402ccc <gRadioInit_RegReplacement_c+224>: 0x8000944c 0x00100010 0x80009450 0x00000515
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0x402cdc <gRadioInit_RegReplacement_c+240>: 0x80009460 0x00397feb 0x80009464 0x00180358
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0x402cec <gRadioInit_RegReplacement_c+256>: 0x8000947c 0x00000455 0x800094e0 0x00000001
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0x402cfc <gRadioInit_RegReplacement_c+272>: 0x800094e4 0x00020003 0x800094e8 0x00040014
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0x402d0c <gRadioInit_RegReplacement_c+288>: 0x800094ec 0x00240034 0x800094f0 0x00440144
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0x402d1c <gRadioInit_RegReplacement_c+304>: 0x800094f4 0x02440344 0x800094f8 0x04440544
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0x402d2c <gRadioInit_RegReplacement_c+320>: 0x80009470 0x0ee7fc00 0x8000981c 0x00000082
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0x402d3c <gRadioInit_RegReplacement_c+336>: 0x80009828 0x0000002a
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then flash init. (hrmm.. this might be important)
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then flyback init.
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then maybe buckbypass sequence... 4 entries from r4+16
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0x402b64 <gBuckByPass_c>: 0x80003000 0x00000018 0x80003048 0x00000f04
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0x402b74 <gBuckByPass_c+16>: 0x00000000 0x000161a8 0x80003048 0x00000ffc
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RadioInit is (roughly):
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SMAC_InitFromMemory(gRadioTOCCal1,40);
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SMAC_InitFromMemory(gRadioTOCCal2_24MHz_c,8);
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SMAC_InitFromMemory(gRadioTOCCal3_c,88);
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SMAC_InitFromMemory(gRadioTOCCal5,32);
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SMAC_InitFromMemory(gRadioInit_RegReplacement_c,344);
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SMAC_InitFromFlash(0x1F000);
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SMAC_InitFlybackSettings();
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v = get_ctov(0,u8RamValues[3]);
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do {
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u8RamValues[8] = v;
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} while((v>>24)>16);
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/*
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After init from flash and flyback settings
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ram_init_val - 004055d0
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004055d0
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base +0 +4 +8 +c +10 +14 +18 +1c
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0000 00000000 00000000 00000000 00000000 00000000 00000000 80009400 00000017
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u8RamValues
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00405424
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base +0 +4 +8 +c +10 +14 +18 +1c
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0000 0400009b 00000000 00000000 00010000 ff000000 00000000 00000000 00000000
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*/
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/*
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40308e: f000 f86d bl 40316c <get_ctov> //get_ctov(0,0x9b)
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403092: 1929 adds r1, r5, r4 // r4 = 0, r5 is &ram_init_val
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403094: 7208 strb r0, [r1, #8]
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403096: 1c64 adds r4, r4, #1 // r4=1
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403098: 0620 lsls r0, r4, #24
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40309a: 0e00 lsrs r0, r0, #24
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40309c: 2810 cmp r0, #16 //
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40309e: d3f3 bcc.n 403088 <RadioInit+0xcc> // branch if higher
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4030a0: b001 add sp, #4
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4030a2: 9804 ldr r0, [sp, #16]
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4030a4: bcf0 pop {r4, r5, r6, r7}
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4030a6: b001 add sp, #4
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4030a8: 4700 bx r0
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4030aa: 46c0 nop (mov r8, r8)
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*/
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