OpenE2K/binutils-gdb
12
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

sim: ft32: correct simulation of MEMCPY and MEMSET

Browse Source 
The MEMCPY and MEMSET instructions should only examine the low 15 bits of
their length arguments.
This commit is contained in:
James Bowman 2015-09-29 23:47:34 +00:00 committed by Mike Frysinger
parent 71c34ca7a0
commit 395b0d8a3f
2 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
sim/ft32/ChangeLog
View File

@ -1,3 +1,8 @@
2015-09-29 James Bowman <james.bowman@ftdichip.com>
* interp.c (step_once): Correct length for MEMSET and MEMCPY
instructions.
2015-09-29 James Bowman <james.bowman@ftdichip.com>
* interp.c (cpu_mem_write): Do no write PM when locked.

4
sim/ft32/interp.c
View File

@ -602,7 +602,7 @@ step_once (SIM_DESC sd)
uint32_t src = r_1v;
uint32_t dst = cpu->state.regs[r_d];
uint32_t i;
for (i = 0; i < rimmv; i++)
for (i = 0; i < (rimmv & 0x7fff); i++)
PUT_BYTE (dst + i, GET_BYTE (src + i));
}
break;
@ -621,7 +621,7 @@ step_once (SIM_DESC sd)
/* memset instruction. */
uint32_t dst = cpu->state.regs[r_d];
uint32_t i;
for (i = 0; i < rimmv; i++)
for (i = 0; i < (rimmv & 0x7fff); i++)
PUT_BYTE (dst + i, r_1v);
}
break;