[PATCH 9/9] semihosting: Implement SYS_ISERROR
Part of Semihosting for AArch32 and AArch64 Release 2.0 Signed-off-by: Keith Packard Message-Id: <20201214200713.3886611-10-kei...@keithp.com> --- hw/semihosting/common-semi.c | 4 1 file changed, 4 insertions(+) diff --git a/hw/semihosting/common-semi.c b/hw/semihosting/common-semi.c index b0648c3812..abc15bf219 100644 --- a/hw/semihosting/common-semi.c +++ b/hw/semihosting/common-semi.c @@ -59,6 +59,7 @@ #define TARGET_SYS_WRITE 0x05 #define TARGET_SYS_READ0x06 #define TARGET_SYS_READC 0x07 +#define TARGET_SYS_ISERROR 0x08 #define TARGET_SYS_ISTTY 0x09 #define TARGET_SYS_SEEK0x0a #define TARGET_SYS_FLEN0x0c @@ -967,6 +968,9 @@ target_ulong do_common_semihosting(CPUState *cs) return guestfd_fns[gf->type].readfn(cs, gf, arg1, len); case TARGET_SYS_READC: return qemu_semihosting_console_inc(cs->env_ptr); +case TARGET_SYS_ISERROR: +GET_ARG(0); +return (target_long) arg0 < 0 ? 1 : 0; case TARGET_SYS_ISTTY: GET_ARG(0); -- 2.29.2
[PATCH 9/9] semihosting: Implement SYS_ISERROR
Part of Semihosting for AArch32 and AArch64 Release 2.0 Signed-off-by: Keith Packard --- hw/semihosting/common-semi.c | 4 1 file changed, 4 insertions(+) diff --git a/hw/semihosting/common-semi.c b/hw/semihosting/common-semi.c index b0648c3812..abc15bf219 100644 --- a/hw/semihosting/common-semi.c +++ b/hw/semihosting/common-semi.c @@ -59,6 +59,7 @@ #define TARGET_SYS_WRITE 0x05 #define TARGET_SYS_READ0x06 #define TARGET_SYS_READC 0x07 +#define TARGET_SYS_ISERROR 0x08 #define TARGET_SYS_ISTTY 0x09 #define TARGET_SYS_SEEK0x0a #define TARGET_SYS_FLEN0x0c @@ -967,6 +968,9 @@ target_ulong do_common_semihosting(CPUState *cs) return guestfd_fns[gf->type].readfn(cs, gf, arg1, len); case TARGET_SYS_READC: return qemu_semihosting_console_inc(cs->env_ptr); +case TARGET_SYS_ISERROR: +GET_ARG(0); +return (target_long) arg0 < 0 ? 1 : 0; case TARGET_SYS_ISTTY: GET_ARG(0); -- 2.29.2
