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Revision 14 -
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Mon Oct 1 13:59:20 2012 UTC
(11 years, 8 months ago)
by tekken_boss
File size: 2473 byte(s)
000.001.014: 2012/10/01 22:55 : ROM code maintenance.
== modification
* [SL811] Process wait added after start up and after reset. 500ms
(countermeasure for ROM code).
== Confirmation
* Compilable.
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/* --------------------------------------------- */ |
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/* H8-3069F Start up routine */ |
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/* (c) KAZ.Imamura */ |
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/* */ |
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/* CPU : Renesus H8/3069F 25MHz */ |
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/* Memory : ROM 512KB, RAM 16KB E-RAM 2MB */ |
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/* Target : AKI-3069-USB on h8mon */ |
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/* --------------------------------------------- */ |
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|
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.h8300h |
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.section .text |
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.global _start |
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.global _permit_irq |
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.global _prohibit_irq |
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.global _wait_100us |
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.global _verify_mem |
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.global _verify_mem256K |
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|
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_start: |
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mov.l #_stack_end,sp |
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jmp _main ; Goto main() |
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|
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_sleep: |
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sleep |
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rts |
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|
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_permit_irq: |
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andc.b #0x7f, ccr |
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rts |
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|
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_prohibit_irq: |
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orc.b #0x80, ccr |
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rts |
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|
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_wait_100us: |
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orc.b #0x80, ccr ; 2 state |
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push.w r2 ; 8 state |
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mov.w #0x0271, r2 ; 4 state |
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dec.w #1, r2 ; 2 state |
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bne .-2 ; 2 state ----- 4 state (160ns) * 620+5(Oă) = 100us |
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pop.w r2 ; 2 state |
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andc.b #0x7f, ccr ; 2 state |
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rts |
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|
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_verify_mem: |
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push.w e4 ; 8 state |
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push.w r4 ; 8 state |
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push.w r5 ; 8 state |
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mov.l #_eram_start,er3 ;# 83 *movsi_h8300hs/3 [length = 6] (16) |
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mov.l #_eram_end,er2 ;# 85 *movsi_h8300hs/3 [length = 6] (12) |
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sub.w r4,r4 |
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mov.w @_memchk_ptn:32,r5 |
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.vm1: |
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mov.w @er3,e4 ;# 89 *movhi_h8300hs/5 [length = 2] |
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cmp.w r5,e4 ;# 90 *cmphi_h8300hs_znvc/2 [length = 4] |
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beq .vm2 ;# 91 branch_true [length = 2] |
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mov.w #1,r4 |
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.vm2: |
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adds #2,er3 ;# 99 *addsi_h8300hs/1 [length = 2] |
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cmp.l er2,er3 ;# 100 cmpsi/2 [length = 2] |
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blo .vm1 ;# 101 branch_true [length = 2] |
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mov.w r4, @_memchk_rslt |
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pop.w r5 ; 2 state |
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pop.w r4 ; 2 state |
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pop.w e4 ; 2 state |
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rts |
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|
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_verify_mem256K: |
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push.w e4 ; 8 state |
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push.w r4 ; 8 state |
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push.w r5 ; 8 state |
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mov.l @_memchk_start,er3 ;# 83 *movsi_h8300hs/3 [length = 6] (16) |
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mov.l er3,er2 |
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add.l #0x20000,er2 ; End address |
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sub.w r4,r4 |
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mov.w @_memchk_ptn:32,r5 |
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.vm2k1: |
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mov.w @er3,e4 ;# 89 *movhi_h8300hs/5 [length = 2] |
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cmp.w r5,e4 ;# 90 *cmphi_h8300hs_znvc/2 [length = 4] |
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beq .vm2k2 ;# 91 branch_true [length = 2] |
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mov.w #1,r4 |
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.vm2k2: |
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adds #2,er3 ;# 99 *addsi_h8300hs/1 [length = 2] |
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cmp.l er2,er3 ;# 100 cmpsi/2 [length = 2] |
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blo .vm2k1 ;# 101 branch_true [length = 2] |
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mov.w r4, @_memchk_rslt |
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pop.w r5 ; 2 state |
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pop.w r4 ; 2 state |
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pop.w e4 ; 2 state |
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rts |
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|
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.end |
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