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mips_malta: update malta's pseudo-bootloader - replace JR with JALR

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JR has been removed in R6 and now this instruction will cause Reserved
Instruction Exception. Therefore use JALR with rd=0 which is equivalent to JR.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Leon Alrae 2014-06-27 08:49:08 +01:00
parent 0aefa33318
commit 9fba150042
1 changed files with 5 additions and 5 deletions
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10
hw/mips/mips_malta.c
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@ -697,12 +697,12 @@ static void write_bootloader (CPUMIPSState *env, uint8_t *base,
/* Jump to kernel code */
stl_p(p++, 0x3c1f0000 | ((kernel_entry >> 16) & 0xffff)); /* lui ra, high(kernel_entry) */
stl_p(p++, 0x37ff0000 | (kernel_entry & 0xffff)); /* ori ra, ra, low(kernel_entry) */
stl_p(p++, 0x03e00008); /* jr ra */
stl_p(p++, 0x03e00009); /* jalr ra */
stl_p(p++, 0x00000000); /* nop */
/* YAMON subroutines */
p = (uint32_t *) (base + 0x800);
stl_p(p++, 0x03e00008); /* jr ra */
stl_p(p++, 0x03e00009); /* jalr ra */
stl_p(p++, 0x24020000); /* li v0,0 */
/* 808 YAMON print */
stl_p(p++, 0x03e06821); /* move t5,ra */
@ -716,7 +716,7 @@ static void write_bootloader (CPUMIPSState *env, uint8_t *base,
stl_p(p++, 0x00000000); /* nop */
stl_p(p++, 0x08000205); /* j 814 */
stl_p(p++, 0x00000000); /* nop */
stl_p(p++, 0x01a00008); /* jr t5 */
stl_p(p++, 0x01a00009); /* jalr t5 */
stl_p(p++, 0x01602021); /* move a0,t3 */
/* 0x83c YAMON print_count */
stl_p(p++, 0x03e06821); /* move t5,ra */
@ -730,7 +730,7 @@ static void write_bootloader (CPUMIPSState *env, uint8_t *base,
stl_p(p++, 0x258cffff); /* addiu t4,t4,-1 */
stl_p(p++, 0x1580fffa); /* bnez t4,84c */
stl_p(p++, 0x00000000); /* nop */
stl_p(p++, 0x01a00008); /* jr t5 */
stl_p(p++, 0x01a00009); /* jalr t5 */
stl_p(p++, 0x01602021); /* move a0,t3 */
/* 0x870 */
stl_p(p++, 0x3c08b800); /* lui t0,0xb400 */
@ -740,7 +740,7 @@ static void write_bootloader (CPUMIPSState *env, uint8_t *base,
stl_p(p++, 0x31290040); /* andi t1,t1,0x40 */
stl_p(p++, 0x1120fffc); /* beqz t1,878 <outch+0x8> */
stl_p(p++, 0x00000000); /* nop */
stl_p(p++, 0x03e00008); /* jr ra */
stl_p(p++, 0x03e00009); /* jalr ra */
stl_p(p++, 0xa1040000); /* sb a0,0(t0) */
}