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Simplified PIC24 return instruction semantics.

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ghidorahrex
2021-04-09 14:17:40 -04:00
parent 3a2922e175
commit 6eb6bde3f4
1 changed files with 54 additions and 0 deletions
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54
Ghidra/Processors/PIC/data/languages/PIC24.sinc
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@@ -7044,6 +7044,7 @@ define pcodeop pwrsavOp;
@if defined(PIC24F) || defined(PIC24H) || defined(dsPIC30F) || defined(dsPIC33F)
:retfie is OP_23_20=0x0 & OP_19_16=0x6 & OP_15_12=0x4 & OP_11_8=0x0 & OP_7_4=0x0 & OP_3_0=0x0 {
@ifdef NEVER
W15 = W15 - 2;
tos1:2 = *[ram]:2 W15;
@@ -7062,6 +7063,12 @@ define pcodeop pwrsavOp;
PC = ( zext(tos1:1 & 0x7F) << 16 ) | zext(tos2);
return [PC];
@else
W15 = W15 - 4;
local tmp = *[ram]:4 W15;
CORCON_IPL3 = (tmp & 0x00800000) != 0;
return [tmp & 0x7FFFFF];
@endif
}
@endif
@@ -7069,6 +7076,7 @@ define pcodeop pwrsavOp;
@if defined(PIC24E) || defined(dsPIC33E) || defined(dsPIC33C)
:retfie is OP_23_20=0x0 & OP_19_16=0x6 & OP_15_12=0x4 & OP_11_8=0x0 & OP_7_4=0x0 & OP_3_0=0x0 {
@ifdef NEVER
W15 = W15 - 2;
tos1:2 = *[ram]:2 W15;
@@ -7090,6 +7098,14 @@ define pcodeop pwrsavOp;
CORCON_SFA = ( tos2 & 0x0001 ) != 0;
return [PC];
@else
W15 = W15 - 4;
local tmp = *[ram]:4 W15;
CORCON_IPL3 = (tmp & 0x00800000) != 0;
CORCON_SFA = (tmp & 0x1) != 0;
return [tmp & 0x7FFFFE];
@endif
}
@endif
@@ -7097,6 +7113,7 @@ define pcodeop pwrsavOp;
@if defined(PIC24F) || defined(PIC24H) || defined(dsPIC30F) || defined(dsPIC33F)
:retlw.w k10_t,Wn_t is OP_23_20=0x0 & OP_19_16=0x5 & OP_15=0 & k10_t & Wn_t {
@ifdef NEVER
W15 = W15 - 2;
tos1:2 = *[ram]:2 W15;
@@ -7118,11 +7135,20 @@ define pcodeop pwrsavOp;
Wn_t = k10_t;
return [PC];
@else
W15 = W15 - 4;
local tmp = *[ram]:4 W15;
CORCON_IPL3 = (tmp & 0x00800000) != 0;
Wn_t = k10_t;
return [tmp & 0x7FFFFF];
@endif
}
:retlw.b k10byte_t,Wnbyte_t is OP_23_20=0x0 & OP_19_16=0x5 & OP_15=0 & k10byte_t & Wnbyte_t {
@ifdef NEVER
W15 = W15 - 2;
tos1:2 = *[ram]:2 W15;
@@ -7144,6 +7170,14 @@ define pcodeop pwrsavOp;
Wnbyte_t = k10byte_t;
return [PC];
@else
W15 = W15 - 4;
local tmp = *[ram]:4 W15;
CORCON_IPL3 = (tmp & 0x00800000) != 0;
Wnbyte_t = k10byte_t;
return [tmp & 0x7FFFFF];
@endif
}
@endif
@@ -7151,6 +7185,7 @@ define pcodeop pwrsavOp;
@if defined(PIC24E) || defined(dsPIC33E) || defined(dsPIC33C)
:retlw.w k10_t,Wn_t is OP_23_20=0x0 & OP_19_16=0x5 & OP_15=0 & k10_t & Wn_t {
@ifdef NEVER
W15 = W15 - 2;
tos1:2 = *[ram]:2 W15;
@@ -7175,11 +7210,21 @@ define pcodeop pwrsavOp;
Wn_t = k10_t;
return [PC];
@else
W15 = W15 - 4;
local tmp = *[ram]:4 W15;
CORCON_IPL3 = (tmp & 0x00800000) != 0;
CORCON_SFA = (tmp & 0x1) != 0;
Wn_t = k10_t;
return [tmp & 0x7FFFFE];
@endif
}
:retlw.b k10byte_t,Wnbyte_t is OP_23_20=0x0 & OP_19_16=0x5 & OP_15=0 & k10byte_t & Wnbyte_t {
@ifdef NEVER
W15 = W15 - 2;
tos1:2 = *[ram]:2 W15;
@@ -7204,6 +7249,15 @@ define pcodeop pwrsavOp;
Wnbyte_t = k10byte_t;
return [PC];
@else
W15 = W15 - 4;
local tmp = *[ram]:4 W15;
CORCON_IPL3 = (tmp & 0x00800000) != 0;
CORCON_SFA = (tmp & 0x1) != 0;
Wnbyte_t = k10byte_t;
return [tmp & 0x7FFFFE];
@endif
}
@endif