diff options
Diffstat (limited to 'cmd')
| -rw-r--r-- | cmd/riscv/exception.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/cmd/riscv/exception.c b/cmd/riscv/exception.c index db8d8af..f38f454 100644 --- a/cmd/riscv/exception.c +++ b/cmd/riscv/exception.c @@ -24,6 +24,19 @@ static int do_ebreak(struct cmd_tbl *cmdtp, int flag, int argc, return CMD_RET_FAILURE; } +static int do_ialign16(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[]) +{ + asm volatile ( + /* jump skipping 2 bytes */ + ".long 0x0060006f\n" + ".long 0x006f0000\n" + ".long 0x00000060\n" + ); + printf("The system supports 16 bit aligned instructions.\n"); + return CMD_RET_SUCCESS; +} + static int do_unaligned(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { @@ -48,6 +61,8 @@ static struct cmd_tbl cmd_sub[] = { "", ""), U_BOOT_CMD_MKENT(ebreak, CONFIG_SYS_MAXARGS, 1, do_ebreak, "", ""), + U_BOOT_CMD_MKENT(ialign16, CONFIG_SYS_MAXARGS, 1, do_ialign16, + "", ""), U_BOOT_CMD_MKENT(unaligned, CONFIG_SYS_MAXARGS, 1, do_unaligned, "", ""), U_BOOT_CMD_MKENT(undefined, CONFIG_SYS_MAXARGS, 1, do_undefined, @@ -59,6 +74,7 @@ static char exception_help_text[] = " The following exceptions are available:\n" " compressed - compressed instruction\n" " ebreak - breakpoint\n" + " ialign16 - 16 bit aligned instruction\n" " undefined - illegal instruction\n" " unaligned - load address misaligned\n" ; |