📄 powerpc32.txt
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丂側偍丄僩儗乕僗儘僌婡擻偵娭偟偰丄chg_ipm偵娭偡傞晹暘偼僔僗僥儉埶懚晹
丂偵偰掕媊傪峴偭偰偄傞丅
丂(sys_tool_config.h)
2.5 僀儞僾儕儊儞僥乕僔儑儞埶懚偺掕媊
2.5.1 MPC860T埶懚偺掕媊
(1) 妱崬傒斣崋
mpc860t.h偱掕媊偟偰偄傞丅
乮SIU妱崬傒僜乕僗乯
妱崬傒斣崋 乥 儅僋儘柤 乥 妱崬傒梫場
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0x0 乥 INTNO_IRQ0 乥 IRQ0
0x1 乥 INTNO_LVL0 乥 撪晹儗儀儖0
0x2 乥 INTNO_IRQ1 乥 IRQ1
0x3 乥 INTNO_LVL1 乥 撪晹儗儀儖1
0x4 乥 INTNO_IRQ2 乥 IRQ2
0x5 乥 INTNO_LVL2 乥 撪晹儗儀儖2
0x6 乥 INTNO_IRQ3 乥 IRQ3
0x7 乥 INTNO_LVL3 乥 撪晹儗儀儖3乮僞僀儅偱巊梡乯
0x8 乥 INTNO_IRQ4 乥 IRQ4
0x9 乥 INTNO_LVL4 乥 撪晹儗儀儖4乮CPM偱巊梡乯
0xa 乥 INTNO_IRQ5 乥 IRQ5
0xb 乥 INTNO_LVL5 乥 撪晹儗儀儖5
0xc 乥 INTNO_IRQ6 乥 IRQ6
0xd 乥 INTNO_LVL6 乥 撪晹儗儀儖6
0xe 乥 INTNO_IRQ7 乥 IRQ7
0xf 乥 INTNO_LVL7 乥 撪晹儗儀儖7
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乮CPM妱崬傒僜乕僗乯
妱崬傒斣崋 乥 儅僋儘柤 乥 妱崬傒梫場
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0x10 乥 INTNO_ERR 乥 僄儔乕
0x11 乥 INTNO_PC4 乥 僷儔儗儖I/O PC4
0x12 乥 INTNO_PC5 乥 僷儔儗儖I/O PC
0x13 乥 INTNO_SMC2 乥 SMC2/PIP
0x14 乥 INTNO_SMC1 乥 SMC1
0x15 乥 INTNO_SPI 乥 SPI
0x16 乥 INTNO_PC6 乥 僷儔儗儖I/O PC6
0x17 乥 INTNO_TIMER4 乥 僞僀儅4
0x18 乥 乥 梊栺嵪傒
0x19 乥 INTNO_PC7 乥 僷儔儗儖I/O PC7
0x1a 乥 INTNO_PC8 乥 僷儔儗儖I/O PC8
0x1b 乥 INTNO_PC9 乥 僷儔儗儖I/O PC9
0x1c 乥 INTNO_TIMER3 乥 僞僀儅3
0x1d 乥 乥 梊栺嵪傒
0x1e 乥 INTNO_PC10 乥 僷儔儗儖I/O PC10
0x1f 乥 INTNO_PC11 乥 僷儔儗儖I/O PC11
0x20 乥 INTNO_I2C 乥 I2C
0x21 乥 INTNO_RISC 乥 RISC僞僀儅僥乕僽儖
0x22 乥 INTNO_TIMER2 乥 僞僀儅2
0x23 乥 乥 梊栺嵪傒
0x24 乥 INTNO_IDMA2 乥 IDMA2
0x25 乥 INTNO_IDMA1 乥 IDMA1
0x26 乥 INTNO_SDMA 乥 SDMA僠儍僱儖僶僗僄儔乕
0x27 乥 INTNO_PC12 乥 僷儔儗儖I/O PC12
0x28 乥 INTNO_PC13 乥 僷儔儗儖I/O PC13
0x29 乥 INTNO_TIMER1 乥 僞僀儅1
0x2a 乥 INTNO_PC14 乥 僷儔儗儖I/O PC14
0x2b 乥 INTNO_SCC4 乥 SCC4
0x2c 乥 INTNO_SCC3 乥 SCC3
0x2d 乥 INTNO_SCC2 乥 SCC2
0x2e 乥 INTNO_SCC1 乥 SCC1
0x2f 乥 INTNO_PC15 乥 僷儔儗儖I/O PC15
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丂丂丂SIU丗System Interface Unit
丂丂丂CPM丗Communication Processor Module
(2) 妱崬傒僐儞僩儘乕儔偺妱崬傒儅僗僋
MPC860T偱偼僾儘僙僢僒偵撪憼偺僔僗僥儉丒僀儞僞乕僼僃乕僗丒儐僯僢僩SIU偲
捠怣僾儘僙僢僒丒儌僕儏乕儖CPM偑偦傟偧傟妱崬傒僐儞僩儘乕儔傪帩偭偰偍傝丄
偙偺2偮偺妱崬傒僐儞僩儘乕儔偑僇僗働乕僪愙懕偝傟偰偄傞丅
崱夞偺幚憰偱偼丄SIU偺妱崬傒儅僗僋乮SIU妱崬傒儅僗僋儗僕僗僞SIMASK乯偺傒
僇乕僱儖偱娗棟偟偰偄傞丅CPM偵偮偄偰偼妱崬傒僐儞僩儘乕儔偑懡廳妱崬傒偺
儗儀儖惂屼傪僴乕僪僂僃傾偱僒億乕僩偟偰偨傔丄僇乕僱儖偱偼CPM妱崬傒儅僗
僋傪娗棟偟偰偄側偄丅
IPM宆偺掕媊偼
丂typedef UH IPM;
偱偁傞丅乮sys_defs.h乯
傑偨丄CPM偐傜SIU傊偺妱崬傒梫媮儗儀儖偼4偵愝掕偝傟偰偄傞丅
乮user_config.h偺儅僋儘CPM_INT_LEVEL乯
(3) 僇乕僱儖偱巊梡偟偰偄傞僨僶僀僗乮妱崬傒梫場乯
丂丂丂丒MPC860T撪憼偺廃婜妱崬傒僞僀儅PIT乮撪晹儗儀儖3乯
丂丂丂丒MPC860T撪憼僔儕傾儖丒儅僱乕僕儊儞僩僐儞僩儘乕儔SMC1
丂丂丂丂乮CPM妱崬傒偺堦庬側偺偱丄撪晹儗儀儖4乯
(4) 奺僨僶僀僗偺妱崬傒桪愭搙
桪愭搙 : (掅) 僔儕傾儖SMC1乮儗儀儖4乯 > 僞僀儅PIT乮儗儀儖3乯 (崅)
丂丂丂
2.5 CPU椺奜娗棟婡擻偲CPU椺奜僴儞僪儔
DEF_EXC偱巜掕偡傞CPU椺奜梫場斣崋(excno)偼丄PowerPC傾乕僉僥僋僠儍偱婯掕
偝傟傞CPU椺奜梫場斣崋偲堦懳堦偵懳墳偟偰偄傞丅
偦偺僨乕僞宆(EXCNO)偼 UINT宆偵掕媊偝傟偰偄傞丅
DEF_EXC偱椺奜梫場斣崋偲偟偰桳岠偱側偄抣傗CPU椺奜偵懳墳偟側偄斣崋傪巜掕
偟偨応崌偺摦嶌偼曐徹偝傟側偄丅
CPU椺奜梫場斣崋丄儅僋儘柤丄CPU椺奜梫場偺懳墳娭學傪埲壓偵帵偡丅
1. EXC_NO_SYSTEM_RESET丂 僔僗僥儉儕僙僢僩椺奜
2. EXC_NO_MACHINE_CHECK 儅僔儞丒僠僃僢僋椺奜
3. EXC_NO_DSI DSI椺奜
乮僨乕僞丒儊儌儕丒傾僋僙僗乯
4. EXC_NO_ISI ISI椺奜乮柦椷僼僃僢僠乯
5. EXC_NO_EXTERNAL_INTERRUPT 奜晹妱崬傒
6. EXC_NO_ALIGNMENT 傾儔僀儊儞僩椺奜
7. EXC_NO_PROGRAM 僾儘僌儔儉椺奜
8. EXC_NO_FLOATING_POINT_UNAVAILABLE
晜摦彫悢揰巊梡晄壜
9. EXC_NO_DECREMENTER 僨僋儕儊儞僞椺奜
10. EXC_NO_IMPLEMENT_EXCEPTION_00A00
僀儞僾儕儊儞僥乕僔儑儞屌桳偺椺奜0x00a00
12. EXC_NO_SYSTEM_CALL 僔僗僥儉僐乕儖
13. EXC_NO_TRACE 僩儗乕僗乮僆僾僔儑儞乯
14. EXC_NO_FLOATING_POINT_ASSIST
晜摦彫悢揰曗彆
15斣埲崀偵僾儘僙僢僒枅偺僀儞僾儕儊儞僥乕僔儑儞屌桳偺椺奜乮0x01000乯偑
掕媊偝傟偰偄傞応崌傕偁傞丅
(1) CPU椺奜僴儞僪儔傊偺堷悢p_excinf
丂CPU椺奜僴儞僪儔偵搉偝傟傞p_excinf偼丄CPU椺奜敪惗帪偺僐儞僥僉僗僩傪曐
丂懚偟偨僗僞僢僋傊偺億僀儞僞偑搉偝傟傞丅僗僞僢僋偺峔憿傪埲壓偵帵偡丅
p_excinf --> --------------------
| r0 |
--------------------
| r3 |
--------------------
| r4 |
--------------------
| r5 |
--------------------
| r6 |
--------------------
| r7 |
--------------------
| r8 |
--------------------
| r9 |
--------------------
| r10 |
--------------------
| r11 |
--------------------
| r12 |
--------------------
| srr0 | /* 懸旔乛暅婣儗僕僗僞0丂*/
--------------------
| srr1 | /* 懸旔乛暅婣儗僕僗僞1丂*/
--------------------
| lr | /* 儕儞僋丒儗僕僗僞 丂丂*/
--------------------
| ctr | /* 僇僂儞僩丒儗僕僗僞丂 */
--------------------
| cr | /* 僐儞僨傿僔儑儞丒儗僕僗僞 */
--------------------
| xer | /* 惍悢僆儁儗乕僔儑儞偺丂*/
-------------------- /* 忦審幆暿儗僕僗僞 */
| exc_no | /* 椺奜梫場斣崋 */
--------------------
(2) 枹搊榐偺CPU椺奜敪惗帪偺張棟
丂枹搊榐偺CPU椺奜偑敪惗偟偨応崌偼僇乕僱儖偑梡堄偟偰偄傞僨僼僅儖僩偺僄
丂儔乕張棟傪峴偆丅嬶懱揑偵偼CPU椺奜敪惗帪偺儗僕僗僞偺撪梕偲CPU椺奜梫場
丂傪儘僌弌椡偟丄柍尷儖乕僾偵擖傞丅
2.6 晜摦彫悢揰儗僕僗僞
PowerPC32偱偼丄晜摦彫悢揰儗僕僗僞偑僆僾僔儑儞偱掕媊偝傟偰偄傞丅
僇乕僱儖傕晜摦彫悢揰儗僕僗僞傪僒億乕僩偟偨幚憰傪峴偭偰偄傞偑丄幚婡偱偺
摦嶌僥僗僩傪峴偭偰偄側偄丅乮億乕僥傿儞僌偵梡偄偨MPC860T偑晜摦彫悢揰儗
僕僗僞傪旛偊偰偄側偄偨傔乯
(cpu_support.S)
2.7 僗僞乕僩傾僢僾儌僕儏乕儖
PowerPC32僞乕僎僢僩偱偼丄椺奜儀僋僞偺堦偮偵丄儕僙僢僩暲傃偵 NMI(Non
Maskable Interrupt)梡偺儀僋僞傾僪儗僗傪旛偊偰偄傞丅偙偺傾僪儗僗偐傜偺
僕儍儞僾愭偑僗僞乕僩傾僢僾儌僕儏乕儖偲側偭偰偄傞丅
偙偺僗僞乕僩傾僢僾儌僕儏乕儖(start.S)偱偼丄師偺弶婜壔張棟傪峴偆丅
(A) 僾儘僙僢僒偺弶婜壔
儅僔儞僗丒僥乕僞僗丒儗僕僗僞傪弶婜壔偟丄僾儘僙僢僒偺摦嶌儌乕僪傪愝掕
偡傞丅
師偵丄僗僞僢僋億僀儞僞(r1)傪 STACKTOP偵愝掕偡傞丅偙偙偱妱崬傒僗僞僢僋
億僀儞僞偵愝掕偝傟偨僗僞僢僋椞堟偼丄僇乕僱儖婲摦屻偼旕僞僗僋僐儞僥僉僗
僩梡偺僗僞僢僋椞堟偲偟偰巊傢傟傞丅
STACKTOP偼丄sys_config.h晹偱掕媊偡傞偙偲傪憐掕偟偰偄傞丅
(B) hardware_init_hook 偺屇弌偟
hardware_init_hook 偑 0 偱側偄応崌偵偼丄hardware_init_hook 傪屇傃弌偡丅
hardware_init_hook 偼丄堦斒偵僇乕僱儖偑婲摦偝傟傞慜偵峴偆昁梫偑偁傞僔
僗僥儉埶懚偺弶婜壔傪婰弎偡傞傕偺偲偡傞丅乮椺丗僶僗僗僥乕僩丒僐儞僩儘乕
儔偺弶婜壔丄僉儍僢僔儏偺弶婜壔丄僂僅僢僠僪僢僌僞僀儅偺弶婜壔側偳乯
婰弎応強偼丄sys_support.S傪昗弨偲偡傞丅
hardware_init_hook 偑偳偙偵傕掕媊偝傟偰偄側偄応崌丄儕儞僇偱偙偺僔儞儃
儖傪0偵掕媊偡傞(儕儞僇僗僋儕僾僩撪偵婰弎偁傝)丅
(C) bss僙僋僔儑儞偲data僙僋僔儑儞偺弶婜壔
bss僙僋僔儑儞傪僛儘僋儕傾偡傞丅
data僙僋僔儑儞傪弶婜壔偡傞丅ROM壔懳墳偺偨傔偵丄ROM偐傜RAM 傊僐僺乕傪峴
偆丅
(D) software_init_hook 偺屇弌偟
software_init_hook 偑 0 偱側偄応崌偵偼丄software_init_hook 傪屇傃弌偡丅
software_init_hook 偼丄僇乕僱儖偑婲摦偝傟傞慜偵峴偆昁梫偑偁傞僜僼僩
僂僃傾娐嫬(嬶懱揑偵偼丄儔僀僽儔儕)埶懚偺弶婜壔傪峴偆偨傔偵梡堄偟偰偄傞丅
software_init_hook 偑偳偙偱傕掕媊偝傟偰偄側偄応崌丄儕儞僇偱偙偺僔儞儃
儖傪0偵掕媊偡傞(儕儞僇僗僋儕僾僩撪偵婰弎偁傝)丅
(E) 僇乕僱儖偺婲摦
kernel_start 傊暘婒偟丄僇乕僱儖傪婲摦偡傞丅kernel_start 偐傜儕僞乕儞偟
偰偔傞偙偲偼憐掕偟偰偄側偄丅
俁. 僔僗僥儉埶懚晹偺婡擻
3.1 僔僗僥儉僋儘僢僋僪儔僀僶
僔僗僥儉僋儘僢僋僪儔僀僶偑 isig_tim 傪屇傃弌偡廃婜偼丄user_config.h 拞
偺TIC_NUME 偲 TIC_DENO 偱掕媊偝傟偰偄傞(僨僼僅儖僩偱偼 1儈儕昩廃婜)丅
偙偺掕媊傪曄峏偡傞偙偲偱丄isig_tim 傪屇傃弌偡廃婜傪曄峏偡傞偙偲偑偱偒
傞丅
偨偩偟丄僞僀儅偺惛搙偑嫙媼僋儘僢僋偵埶懚偡傞偨傔丄僞僀儅偺嫙媼僋儘僢僋
扨埵偱抂悢偵側傞抣傪愝掕偟偨応崌偵偼丄isig_tim 偺屇弌偟廃婜偵岆嵎偑惗
偠傞偙偲偵側傞丅
僨僼僅儖僩偱偼丄壓婰偺僞僀儅傪棙梡偟偰偄傞丅
(a) MPC860T埶懚晹
MPC860T撪憼偺廃婜妱崬傒僞僀儅PIT
乮嫙媼僋儘僢僋廃攇悢 12.5MHz乯
3.2 惈擻昡壙梡僔僗僥儉帪崗嶲徠婡擻
PowerPC32僞乕僎僢僩埶懚晹偱偼丄惈擻昡壙梡僔僗僥儉帪崗嶲徠婡擻
(vxget_tim)傪僒億乕僩偟偰偄傞丅SYSUTIM宆偼UD宆(64價僢僩偺晞崋柍偟惍悢
宆)偱掕媊偟偰偄傞丅
惈擻昡壙梡僔僗僥儉帪崗偺惛搙偼嫙媼僋儘僢僋扨埵偱偁傞偑丄僞僀儅偺尰嵼抣傪
撉傒弌偡偨傔偵堦帪揑偵僞僀儅傪掆巭偝偣傞昁梫偑偁傞偨傔丄vxget_tim 傪屇傇
搙偵僔僗僥儉僋儘僢僋偑彮偟偯偮抶傟傞偙偲偵側傞丅
傑偨丄SUPPORT_VXGET_TIM偲偄偆儅僋儘偵傛傝丄偙傟傜偺僒乕價僗僐乕儖傪僒
億乕僩偡傞偐偳偆偐傪愗傝懼偊傜傟傞傛偆偵偟偰偄傞丅
(SUPPORT_VXGET_TIM 偼丄user_config.h 偺拞偱 #define 偝傟偰偄傞丅)
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