Commit bf4667d0 authored Aug 10, 2018 by Stefan Markovic Committed by Aleksandar Markovic Aug 24, 2018

mips_malta: Fix semihosting argument passing for nanoMIPS bare metal



Fix passing argument for nanoMIPS bare metal related to the
semihosting regime.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>

parent 28861af8

hw/mips/mips_malta.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -630,8 +630,14 @@ static void write_bootloader_nanomips(uint8_t *base, int64_t run_addr,
		/* nop */

		/* to_here: */
		if (semihosting_get_argc()) {
		/* Preserve a0 content as arguments have been passed */
		stw_p(p++, 0x8000); stw_p(p++, 0xc000);
		/* nop */
		} else {
		stw_p(p++, 0x0080); stw_p(p++, 0x0002);
		/* li a0,2 */
		}

		stw_p(p++, 0xe3a0 \| NM_HI1(ENVP_ADDR - 64));