diff options
Diffstat (limited to 'py')
| -rw-r--r-- | py/asmarm.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/py/asmarm.c b/py/asmarm.c index a1c15d0fa..6fa751b32 100644 --- a/py/asmarm.c +++ b/py/asmarm.c @@ -344,8 +344,15 @@ void asm_arm_ldrh_reg_reg(asm_arm_t *as, uint rd, uint rn) { } void asm_arm_ldrh_reg_reg_offset(asm_arm_t *as, uint rd, uint rn, uint byte_offset) { - // ldrh rd, [rn, #off] - emit_al(as, 0x1d000b0 | (rn << 16) | (rd << 12) | ((byte_offset & 0xf0) << 4) | (byte_offset & 0xf)); + if (byte_offset < 0x100) { + // ldrh rd, [rn, #off] + emit_al(as, 0x1d000b0 | (rn << 16) | (rd << 12) | ((byte_offset & 0xf0) << 4) | (byte_offset & 0xf)); + } else { + // mov r8, #off + // ldrh rd, [rn, r8] + asm_arm_mov_reg_i32_optimised(as, ASM_ARM_REG_R8, byte_offset); + emit_al(as, 0x19000b0 | (rn << 16) | (rd << 12) | ASM_ARM_REG_R8); + } } void asm_arm_ldrb_reg_reg(asm_arm_t *as, uint rd, uint rn) { |