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Tidy up and comment.

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This commit is contained in:
Richard Barry 2009-01-28 12:37:04 +00:00
parent 2fd4047164
commit 761540892b
3 changed files with 49 additions and 47 deletions
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34
Source/portable/IAR/V850ES_Fx3/ISR_Support.h
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@ -58,12 +58,12 @@
portSAVE_CONTEXT MACRO
add -0x0C,sp ; prepare stack to save necessary values
st.w lp,8[sp] ; store LP to stack
add -0x0C,sp ; prepare stack to save necessary values
st.w lp,8[sp] ; store LP to stack
stsr 0,r31
st.w lp,4[sp] ; store EIPC to stack
st.w lp,4[sp] ; store EIPC to stack
stsr 1,lp
st.w lp,0[sp] ; store EIPSW to stack
st.w lp,0[sp] ; store EIPSW to stack
#if configDATA_MODE == 1 ; Using the Tiny data model
prepare {r20,r21,r22,r23,r24,r25,r26,r27,r28,r29,r30},76,sp ; save general purpose registers
sst.w r19,72[ep]
@ -102,10 +102,10 @@ portSAVE_CONTEXT MACRO
#endif /* configDATA_MODE */
sst.w r2,8[ep]
sst.w r1,4[ep]
MOVHI hi1(usCriticalNesting),r0,r1 ; save usCriticalNesting value to stack
MOVHI hi1(usCriticalNesting),r0,r1 ; save usCriticalNesting value to stack
ld.w lw1(usCriticalNesting)[r1],r2
sst.w r2,0[ep]
MOVHI hi1(pxCurrentTCB),r0,r1 ; save SP to top of current TCB
MOVHI hi1(pxCurrentTCB),r0,r1 ; save SP to top of current TCB
ld.w lw1(pxCurrentTCB)[r1],r2
st.w sp,0[r2]
ENDM
@ -113,17 +113,17 @@ portSAVE_CONTEXT MACRO
portRESTORE_CONTEXT MACRO
MOVHI hi1(pxCurrentTCB),r0,r1 ; get Stackpointer address
MOVHI hi1(pxCurrentTCB),r0,r1 ; get Stackpointer address
ld.w lw1(pxCurrentTCB)[r1],sp
MOV sp,r1
ld.w 0[r1],sp ; load stackpointer
MOV sp,ep ; set stack pointer to element pointer
sld.w 0[ep],r1 ; load usCriticalNesting value from stack
ld.w 0[r1],sp ; load stackpointer
MOV sp,ep ; set stack pointer to element pointer
sld.w 0[ep],r1 ; load usCriticalNesting value from stack
MOVHI hi1(usCriticalNesting),r0,r2
st.w r1,lw1(usCriticalNesting)[r2]
sld.w 4[ep],r1 ; restore general purpose registers
sld.w 4[ep],r1 ; restore general purpose registers
sld.w 8[ep],r2
#if configDATA_MODE == 1 ; Using Tiny data model
#if configDATA_MODE == 1 ; Using Tiny data model
sld.w 12[ep],r4
sld.w 16[ep],r5
sld.w 20[ep],r6
@ -141,7 +141,7 @@ portRESTORE_CONTEXT MACRO
sld.w 68[ep],r18
sld.w 72[ep],r19
dispose 76,{r20,r21,r22,r23,r24,r25,r26,r27,r28,r29,r30}
#else ; Using Small/Large data model
#else ; Using Small/Large data model
sld.w 12[ep],r5
sld.w 16[ep],r6
sld.w 20[ep],r7
@ -159,12 +159,12 @@ portRESTORE_CONTEXT MACRO
sld.w 68[ep],r19
dispose 72,{r20,r21,r22,r23,r24,r26,r27,r28,r29,r30}
#endif /* configDATA_MODE */
ld.w 0[sp],lp ; restore EIPSW from stack
ld.w 0[sp],lp ; restore EIPSW from stack
ldsr lp,1
ld.w 4[sp],lp ; restore EIPC from stack
ld.w 4[sp],lp ; restore EIPC from stack
ldsr lp,0
ld.w 8[sp],lp ; restore LP from stack
add 0x0C,sp ; set SP to right position
ld.w 8[sp],lp ; restore LP from stack
add 0x0C,sp ; set SP to right position
RETI