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cmd/internal/obj/riscv: add comments for Go registers 

Change-Id: Id9aa6ba268eee67f2dc74096d4ec3bc0a80aefe2
Reviewed-on: https://go-review.googlesource.com/c/go/+/223563
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
Joel Sing 2020-03-16 03:31:32 +11:00
parent 0e44c692c2
commit 7ec4adbc91
1 changed files with 3 additions and 3 deletions
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6
src/cmd/internal/obj/riscv/cpu.go
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@ -106,7 +106,7 @@ const (
// General registers reassigned to ABI names.
REG_ZERO = REG_X0
REG_RA = REG_X1
REG_RA = REG_X1 // aka REG_LR
REG_SP = REG_X2
REG_GP = REG_X3 // aka REG_SB
REG_TP = REG_X4 // aka REG_G
@ -125,7 +125,7 @@ const (
REG_A7 = REG_X17
REG_S2 = REG_X18
REG_S3 = REG_X19
REG_S4 = REG_X20
REG_S4 = REG_X20 // aka REG_CTXT
REG_S5 = REG_X21
REG_S6 = REG_X22
REG_S7 = REG_X23
@ -136,7 +136,7 @@ const (
REG_T3 = REG_X28
REG_T4 = REG_X29
REG_T5 = REG_X30
REG_T6 = REG_X31
REG_T6 = REG_X31 // aka REG_TMP
// Go runtime register names.
REG_G = REG_TP // G pointer.