diff options
Diffstat (limited to 'py/asmthumb.c')
| -rw-r--r-- | py/asmthumb.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/py/asmthumb.c b/py/asmthumb.c index 46102395d..e6bba7ea6 100644 --- a/py/asmthumb.c +++ b/py/asmthumb.c @@ -225,10 +225,12 @@ void asm_thumb_mov_reg_reg(asm_thumb_t *as, uint reg_dest, uint reg_src) { } // if loading lo half with movw, the i16 value will be zero extended into the r32 register! -void asm_thumb_mov_reg_i16(asm_thumb_t *as, uint mov_op, uint reg_dest, int i16_src) { +size_t asm_thumb_mov_reg_i16(asm_thumb_t *as, uint mov_op, uint reg_dest, int i16_src) { assert(reg_dest < ASM_THUMB_REG_R15); + size_t loc = mp_asm_base_get_code_pos(&as->base); // mov[wt] reg_dest, #i16_src asm_thumb_op32(as, mov_op | ((i16_src >> 1) & 0x0400) | ((i16_src >> 12) & 0xf), ((i16_src << 4) & 0x7000) | (reg_dest << 8) | (i16_src & 0xff)); + return loc; } #define OP_B_N(byte_offset) (0xe000 | (((byte_offset) >> 1) & 0x07ff)) @@ -271,12 +273,16 @@ bool asm_thumb_bl_label(asm_thumb_t *as, uint label) { return as->base.pass != MP_ASM_PASS_EMIT || SIGNED_FIT23(rel); } -void asm_thumb_mov_reg_i32(asm_thumb_t *as, uint reg_dest, mp_uint_t i32) { +size_t asm_thumb_mov_reg_i32(asm_thumb_t *as, uint reg_dest, mp_uint_t i32) { // movw, movt does it in 8 bytes // ldr [pc, #], dw does it in 6 bytes, but we might not reach to end of code for dw + size_t loc = mp_asm_base_get_code_pos(&as->base); + asm_thumb_mov_reg_i16(as, ASM_THUMB_OP_MOVW, reg_dest, i32); asm_thumb_mov_reg_i16(as, ASM_THUMB_OP_MOVT, reg_dest, i32 >> 16); + + return loc; } void asm_thumb_mov_reg_i32_optimised(asm_thumb_t *as, uint reg_dest, int i32) { |