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Diffstat (limited to 'py/asmthumb.h')
| -rw-r--r-- | py/asmthumb.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/py/asmthumb.h b/py/asmthumb.h index e40f956543..43d6c4286f 100644 --- a/py/asmthumb.h +++ b/py/asmthumb.h @@ -105,6 +105,21 @@ void asm_thumb_op32(asm_thumb_t *as, uint op1, uint op2); static inline void asm_thumb_it_cc(asm_thumb_t *as, uint cc, uint mask) { asm_thumb_op16(as, ASM_THUMB_OP_IT | (cc << 4) | mask); } +// FORMAT 1: move shifted register + +#define ASM_THUMB_FORMAT_1_LSL (0x0000) +#define ASM_THUMB_FORMAT_1_LSR (0x0800) +#define ASM_THUMB_FORMAT_1_ASR (0x1000) + +#define ASM_THUMB_FORMAT_1_ENCODE(op, rlo_dest, rlo_src, offset) \ + ((op) | ((offset) << 6) | ((rlo_src) << 3) | (rlo_dest)) + +static inline void asm_thumb_format_1(asm_thumb_t *as, uint op, uint rlo_dest, uint rlo_src, uint offset) { + assert(rlo_dest < ASM_THUMB_REG_R8); + assert(rlo_src < ASM_THUMB_REG_R8); + asm_thumb_op16(as, ASM_THUMB_FORMAT_1_ENCODE(op, rlo_dest, rlo_src, offset)); +} + // FORMAT 2: add/subtract #define ASM_THUMB_FORMAT_2_ADD (0x1800) |