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Wim Lewis
nettle
Commits
3ac426df
Commit
3ac426df
authored
Mar 04, 2013
by
Niels Möller
Browse files
Note that r14/lr can be used.
parent
4ede4e41
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armv7/README
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3ac426df
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@@ -4,6 +4,8 @@ For efficient loads and stores, use ldmia, stmia and friends. Can do
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@@ -4,6 +4,8 @@ For efficient loads and stores, use ldmia, stmia and friends. Can do
two loads or stores per cycle with 8-byte aligned addresses, or three
two loads or stores per cycle with 8-byte aligned addresses, or three
loads or stores in two cycles, regardless of alignment.
loads or stores in two cycles, regardless of alignment.
12 usable registers (if we exclude r9).
ABI gnueabi(hf) (not depending on the floating point conventions)
ABI gnueabi(hf) (not depending on the floating point conventions)
Registers May be Argument
Registers May be Argument
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@@ -23,7 +25,7 @@ r10 N
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@@ -23,7 +25,7 @@ r10 N
r11 N
r11 N
r12 (ip) Y
r12 (ip) Y
r13 (sp)
r13 (sp)
r14 (lr)
r14 (lr)
N
r15 (pc)
r15 (pc)
q0 (d0, d1) Y 1 (for "hf" abi)
q0 (d0, d1) Y 1 (for "hf" abi)
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