mirror of
git://repo.or.cz/tinycc.git
synced 2026-06-17 15:44:18 +08:00
016087c954
AMO (A-extension):
18 base instructions: amoadd/swap/and/or/xor/max/maxu/min/minu .w/.d
6 aq/rl suffixes: amoadd.w.aq/.rl/.aqrl, amoadd.d.aq/.rl/.aqrl
Correct funct5 (GNU as verified):
amoadd=0x00 amoswap=0x01 amoxor=0x04
amoand=0x0C amoor=0x08 amomax=0x14
amomaxu=0x1C amomin=0x10 amominu=0x18
R-type opcode 0x2F, aq/rl in bits [26:25]
FCVT rounding modes (GNU operand syntax):
fcvt.w.s rd, rs1 [, rtz/rne/rup] -- optional 3rd operand
asm_fcvt_opcode() handler with asm_fcvt_rm() helper
Keywords rne=0, rtz=1, rdn=2, rup=3, rmm=4
FCVT encoding fixes:
fcvt.s.d: funct7 0x40->0x20
fcvt.d.s: funct7 0x42->0x21
Tests: 144 CSR, 145 F/D cmp+cvt, 146 AMO, 147 fcvt round.
All verified against riscv64-linux-gnu-as 2.44 on Spacemit X100.
|
||
|---|---|---|
| .. | ||
| pp | ||
| tests2 | ||
| 42test.h | ||
| abitest.c | ||
| arm-asm-testsuite.sh | ||
| asm-c-connect-1.c | ||
| asm-c-connect-2.c | ||
| asmtest.S | ||
| boundtest.c | ||
| bug.c | ||
| gcctestsuite.sh | ||
| libtcc_test_mt.c | ||
| libtcc_test.c | ||
| Makefile | ||
| msvcrt_start.c | ||
| tcctest.c | ||
| tcctest.h | ||
| test-win32.bat | ||
| testfp.c | ||
| vla_test.c | ||