Lerking/micropython
1
0
Fork 0
mirror of https://github.com/micropython/micropython.git synced 2026-01-04 19:20:22 +01:00
Code Issues Actions 52 Packages Projects Releases Wiki Activity

py/emitnative: Load native fun table ptr from const table for all archs.

Browse Source 
All architectures now have a dedicated register to hold the pointer to the
native function table mp_fun_table, and so they all need to load this
register at the start of the native function.  This commit makes the
loading of this register uniform across architectures by passing the
pointer in the constant table for the native function, and then loading the
register from the constant table.  Doing it this way means that the pointer
is not stored in the assembly code, helping to make the code more portable.
This commit is contained in:
Damien George
2018-10-13 14:53:35 +11:00
parent 355eb8eafb
commit 006671056d
10 changed files with 54 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
py/asmarm.h
View File

@@ -124,6 +124,9 @@ void asm_arm_b_label(asm_arm_t *as, uint label);
void asm_arm_bl_ind(asm_arm_t *as, void *fun_ptr, uint fun_id, uint reg_temp);
void asm_arm_bx_reg(asm_arm_t *as, uint reg_src);
// Holds a pointer to mp_fun_table
#define ASM_ARM_REG_FUN_TABLE ASM_ARM_REG_R7
#if GENERIC_ASM_API
// The following macros provide a (mostly) arch-independent API to
@@ -146,6 +149,9 @@ void asm_arm_bx_reg(asm_arm_t *as, uint reg_src);
#define REG_LOCAL_3 ASM_ARM_REG_R6
#define REG_LOCAL_NUM (3)
// Holds a pointer to mp_fun_table
#define REG_FUN_TABLE ASM_ARM_REG_FUN_TABLE
#define ASM_T asm_arm_t
#define ASM_END_PASS asm_arm_end_pass
#define ASM_ENTRY asm_arm_entry