djsundog/circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

py/asmxtensa: Use narrow version of add instr to reduce native code size

Browse Source
This commit is contained in:
Damien George 2018-08-17 14:53:58 +10:00
parent a0a29724c8
commit 794c32102e
2 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
py/asmxtensa.c
View File

@ -95,7 +95,7 @@ void asm_xtensa_exit(asm_xtensa_t *as) {
asm_xtensa_op_addi(as, ASM_XTENSA_REG_A1, ASM_XTENSA_REG_A1, as->stack_adjust);
} else {
asm_xtensa_op_movi(as, ASM_XTENSA_REG_A9, as->stack_adjust);
asm_xtensa_op_add(as, ASM_XTENSA_REG_A1, ASM_XTENSA_REG_A1, ASM_XTENSA_REG_A9);
asm_xtensa_op_add_n(as, ASM_XTENSA_REG_A1, ASM_XTENSA_REG_A1, ASM_XTENSA_REG_A9);
}
asm_xtensa_op_ret_n(as);
@ -183,7 +183,7 @@ void asm_xtensa_mov_reg_local_addr(asm_xtensa_t *as, uint reg_dest, int local_nu
asm_xtensa_op_addi(as, reg_dest, ASM_XTENSA_REG_A1, off);
} else {
asm_xtensa_op_movi(as, reg_dest, off);
asm_xtensa_op_add(as, reg_dest, reg_dest, ASM_XTENSA_REG_A1);
asm_xtensa_op_add_n(as, reg_dest, reg_dest, ASM_XTENSA_REG_A1);
}
}
@ -206,7 +206,7 @@ void asm_xtensa_mov_reg_pcrel(asm_xtensa_t *as, uint reg_dest, uint label) {
mp_asm_base_get_cur_to_write_bytes(&as->base, pad);
// Add PC to relative offset
asm_xtensa_op_add(as, reg_dest, reg_dest, ASM_XTENSA_REG_A0);
asm_xtensa_op_add_n(as, reg_dest, reg_dest, ASM_XTENSA_REG_A0);
}
#endif // MICROPY_EMIT_XTENSA || MICROPY_EMIT_INLINE_XTENSA

6
py/asmxtensa.h
View File

@ -113,8 +113,8 @@ void asm_xtensa_op24(asm_xtensa_t *as, uint32_t op);
// raw instructions
static inline void asm_xtensa_op_add(asm_xtensa_t *as, uint reg_dest, uint reg_src_a, uint reg_src_b) {
asm_xtensa_op24(as, ASM_XTENSA_ENCODE_RRR(0, 0, 8, reg_dest, reg_src_a, reg_src_b));
static inline void asm_xtensa_op_add_n(asm_xtensa_t *as, uint reg_dest, uint reg_src_a, uint reg_src_b) {
asm_xtensa_op16(as, ASM_XTENSA_ENCODE_RRRN(10, reg_dest, reg_src_a, reg_src_b));
}
static inline void asm_xtensa_op_addi(asm_xtensa_t *as, uint reg_dest, uint reg_src, int imm8) {
@ -307,7 +307,7 @@ void asm_xtensa_mov_reg_pcrel(asm_xtensa_t *as, uint reg_dest, uint label);
#define ASM_OR_REG_REG(as, reg_dest, reg_src) asm_xtensa_op_or((as), (reg_dest), (reg_dest), (reg_src))
#define ASM_XOR_REG_REG(as, reg_dest, reg_src) asm_xtensa_op_xor((as), (reg_dest), (reg_dest), (reg_src))
#define ASM_AND_REG_REG(as, reg_dest, reg_src) asm_xtensa_op_and((as), (reg_dest), (reg_dest), (reg_src))
#define ASM_ADD_REG_REG(as, reg_dest, reg_src) asm_xtensa_op_add((as), (reg_dest), (reg_dest), (reg_src))
#define ASM_ADD_REG_REG(as, reg_dest, reg_src) asm_xtensa_op_add_n((as), (reg_dest), (reg_dest), (reg_src))
#define ASM_SUB_REG_REG(as, reg_dest, reg_src) asm_xtensa_op_sub((as), (reg_dest), (reg_dest), (reg_src))
#define ASM_MUL_REG_REG(as, reg_dest, reg_src) asm_xtensa_op_mull((as), (reg_dest), (reg_dest), (reg_src))