yuzu/unicorn
1
0
Fork 0
mirror of https://github.com/yuzu-emu/unicorn.git synced 2025-03-28 17:07:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

tcg/mips: Improve the add2/sub2 command to use TCG_TARGET_REG_BITS

Browse source 
Instead of hard coding 31 for the shift right use TCG_TARGET_REG_BITS - 1.

Backports commit 161dec9d1b03552e78e5728186eae9cf1dfbe035 from qemu
This commit is contained in:
Alistair Francis 2018-12-18 05:58:00 -05:00 committed by Lioncash
parent 5c4e852c6e
commit 7219548fbd
No known key found for this signature in database
GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
qemu/tcg/mips/tcg-target.inc.c
View file

@ -1606,7 +1606,7 @@ static void tcg_out_addsub2(TCGContext *s, TCGReg rl, TCGReg rh, TCGReg al,
tcg_out_opc_imm(s, OPC_ADDIU, rl, al, bl);
tcg_out_opc_imm(s, OPC_SLTIU, TCG_TMP0, rl, bl);
} else if (rl == al && rl == bl) {
tcg_out_opc_sa(s, OPC_SRL, TCG_TMP0, al, 31);
tcg_out_opc_sa(s, OPC_SRL, TCG_TMP0, al, TCG_TARGET_REG_BITS - 1);
tcg_out_opc_reg(s, OPC_ADDU, rl, al, bl);
} else {
tcg_out_opc_reg(s, OPC_ADDU, rl, al, bl);