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-rw-r--r--src/target/mips32_pracc.c99
-rw-r--r--src/target/mips32_pracc.h2
2 files changed, 93 insertions, 8 deletions
diff --git a/src/target/mips32_pracc.c b/src/target/mips32_pracc.c
index d641956d..2511b078 100644
--- a/src/target/mips32_pracc.c
+++ b/src/target/mips32_pracc.c
@@ -218,7 +218,10 @@ int mips32_pracc_read_mem(mips_ejtag_t *ejtag_info, u32 addr, int size, int coun
case 2:
return mips32_pracc_read_mem16(ejtag_info, addr, count, (u16*)buf);
case 4:
- return mips32_pracc_read_mem32(ejtag_info, addr, count, (u32*)buf);
+ if(count==1)
+ return mips32_pracc_read_u32(ejtag_info, addr, (u32*)buf);
+ else
+ return mips32_pracc_read_mem32(ejtag_info, addr, count, (u32*)buf);
}
return ERROR_OK;
@@ -247,8 +250,8 @@ int mips32_pracc_read_mem32(mips_ejtag_t *ejtag_info, u32 addr, int count, u32 *
MIPS32_BEQ(0,10,9), /* beq 0, $10, end */
MIPS32_NOP,
- MIPS32_LW(12,0,9), /* lw $12,0($9), Load $12 with the word @mem[$9] */
- MIPS32_SW(12,0,11), /* sw $12,0($11) */
+ MIPS32_LW(8,0,9), /* lw $8,0($9), Load $8 with the word @mem[$9] */
+ MIPS32_SW(8,0,11), /* sw $8,0($11) */
MIPS32_ADDI(10,10,NEG16(1)), /* $10-- */
MIPS32_ADDI(9,9,4), /* $1+=4 */
@@ -298,6 +301,47 @@ int mips32_pracc_read_mem32(mips_ejtag_t *ejtag_info, u32 addr, int count, u32 *
return retval;
}
+int mips32_pracc_read_u32(mips_ejtag_t *ejtag_info, u32 addr, u32 *buf)
+{
+ u32 code[] = {
+ /* start: */
+ MIPS32_MTC0(15,31,0), /* move $15 to COP0 DeSave */
+ MIPS32_LUI(15,UPPER16(MIPS32_PRACC_STACK)), /* $15 = MIPS32_PRACC_STACK */
+ MIPS32_ORI(15,15,LOWER16(MIPS32_PRACC_STACK)),
+ MIPS32_SW(8,0,15), /* sw $8,($15) */
+ MIPS32_SW(9,0,15), /* sw $9,($15) */
+
+ MIPS32_LUI(8,UPPER16(MIPS32_PRACC_PARAM_IN)), /* $8 = MIPS32_PRACC_PARAM_IN */
+ MIPS32_ORI(8,8,LOWER16(MIPS32_PRACC_PARAM_IN)),
+ MIPS32_LW(8,0,8), /* $8=mem[$8]; read addr */
+ MIPS32_LUI(9,UPPER16(MIPS32_PRACC_PARAM_OUT)), /* $9=MIPS32_PRACC_PARAM_OUT */
+ MIPS32_ORI(9,9,LOWER16(MIPS32_PRACC_PARAM_OUT)),
+
+ MIPS32_LW(8,0,8), /* lw $8,0($8), Load $8 with the word @mem[$8] */
+ MIPS32_SW(8,0,9), /* sw $8,0($9) */
+
+ MIPS32_LW(9,0,15), /* lw $9,($15) */
+ MIPS32_LW(8,0,15), /* lw $8,($15) */
+ MIPS32_MFC0(15,31,0), /* move COP0 DeSave to $15 */
+ MIPS32_NOP,
+ MIPS32_B(NEG16(17)), /* b start */
+ MIPS32_NOP,
+ };
+
+ int retval = ERROR_OK;
+ u32 param_in[1];
+
+ param_in[0] = addr;
+
+ if ((retval = mips32_pracc_exec(ejtag_info, sizeof(code)/sizeof(code[0]), code,
+ sizeof(param_in)/sizeof(param_in[0]), param_in, sizeof(u32), buf, 1)) != ERROR_OK)
+ {
+ return retval;
+ }
+
+ return retval;
+}
+
int mips32_pracc_read_mem16(mips_ejtag_t *ejtag_info, u32 addr, int count, u16 *buf)
{
u32 code[] = {
@@ -321,8 +365,8 @@ int mips32_pracc_read_mem16(mips_ejtag_t *ejtag_info, u32 addr, int count, u16 *
MIPS32_BEQ(0,10,9), /* beq 0, $10, end */
MIPS32_NOP,
- MIPS32_LHU(12,0,9), /* lw $12,0($9), Load $12 with the halfword @mem[$9] */
- MIPS32_SW(12,0,11), /* sw $12,0($11) */
+ MIPS32_LHU(8,0,9), /* lw $8,0($9), Load $8 with the halfword @mem[$9] */
+ MIPS32_SW(8,0,11), /* sw $8,0($11) */
MIPS32_ADDI(10,10,NEG16(1)), /* $10-- */
MIPS32_ADDI(9,9,2), /* $9+=2 */
@@ -400,8 +444,8 @@ int mips32_pracc_read_mem8(mips_ejtag_t *ejtag_info, u32 addr, int count, u8 *bu
MIPS32_BEQ(0,10,9), /* beq 0, $10, end */
MIPS32_NOP,
- MIPS32_LBU(12,0,9), /* lw $12,0($9), Load t4 with the byte @mem[t1] */
- MIPS32_SW(12,0,11), /* sw $12,0($11) */
+ MIPS32_LBU(8,0,9), /* lw $8,0($9), Load t4 with the byte @mem[t1] */
+ MIPS32_SW(8,0,11), /* sw $8,0($11) */
MIPS32_ADDI(10,10,NEG16(1)), /* $10-- */
MIPS32_ADDI(9,9,1), /* $9+=1 */
@@ -465,7 +509,10 @@ int mips32_pracc_write_mem(mips_ejtag_t *ejtag_info, u32 addr, int size, int cou
case 2:
return mips32_pracc_write_mem16(ejtag_info, addr, count,(u16*)buf);
case 4:
- return mips32_pracc_write_mem32(ejtag_info, addr, count, (u32*)buf);
+ if(count==1)
+ return mips32_pracc_write_u32(ejtag_info, addr, (u32*)buf);
+ else
+ return mips32_pracc_write_mem32(ejtag_info, addr, count, (u32*)buf);
}
return ERROR_OK;
@@ -526,6 +573,42 @@ int mips32_pracc_write_mem32(mips_ejtag_t *ejtag_info, u32 addr, int count, u32
return ERROR_OK;
}
+int mips32_pracc_write_u32(mips_ejtag_t *ejtag_info, u32 addr, u32 *buf)
+{
+ u32 code[] = {
+ /* start: */
+ MIPS32_MTC0(15,31,0), /* move $15 to COP0 DeSave */
+ MIPS32_LUI(15,UPPER16(MIPS32_PRACC_STACK)), /* $15 = MIPS32_PRACC_STACK */
+ MIPS32_ORI(15,15,LOWER16(MIPS32_PRACC_STACK)),
+ MIPS32_SW(8,0,15), /* sw $8,($15) */
+ MIPS32_SW(9,0,15), /* sw $9,($15) */
+
+ MIPS32_LUI(8,UPPER16((MIPS32_PRACC_PARAM_IN+4))), /* $8 = MIPS32_PRACC_PARAM_IN+4 */
+ MIPS32_ORI(8,8,LOWER16((MIPS32_PRACC_PARAM_IN+4))),
+ MIPS32_LW(9,NEG16(4),8), /* Load write addr to $9 */
+
+ MIPS32_LW(8,0,8), /* lw $8,0($8), Load $8 with the word @mem[$8] */
+ MIPS32_SW(8,0,9), /* sw $8,0($9) */
+
+ MIPS32_LW(9,0,15), /* lw $9,($15) */
+ MIPS32_LW(8,0,15), /* lw $8,($15) */
+ MIPS32_MFC0(15,31,0), /* move COP0 DeSave to $15 */
+ MIPS32_NOP,
+ MIPS32_B(NEG16(15)), /* b start */
+ MIPS32_NOP,
+ };
+
+ /* TODO remove array */
+ u32 param_in[1+1];
+ param_in[0] = addr;
+ param_in[1] = *buf;
+
+ mips32_pracc_exec(ejtag_info, sizeof(code)/sizeof(code[0]), code, \
+ sizeof(param_in)/sizeof(param_in[0]),param_in, 0, NULL, 1);
+
+ return ERROR_OK;
+}
+
int mips32_pracc_write_mem16(mips_ejtag_t *ejtag_info, u32 addr, int count, u16 *buf)
{
u32 code[] = {
diff --git a/src/target/mips32_pracc.h b/src/target/mips32_pracc.h
index d452964c..31a91fdc 100644
--- a/src/target/mips32_pracc.h
+++ b/src/target/mips32_pracc.h
@@ -42,10 +42,12 @@ extern int mips32_pracc_write_mem(mips_ejtag_t *ejtag_info, u32 addr, int size,
extern int mips32_pracc_read_mem8(mips_ejtag_t *ejtag_info, u32 addr, int count, u8 *buf);
extern int mips32_pracc_read_mem16(mips_ejtag_t *ejtag_info, u32 addr, int count, u16 *buf);
extern int mips32_pracc_read_mem32(mips_ejtag_t *ejtag_info, u32 addr, int count, u32 *buf);
+extern int mips32_pracc_read_u32(mips_ejtag_t *ejtag_info, u32 addr, u32 *buf);
extern int mips32_pracc_write_mem8(mips_ejtag_t *ejtag_info, u32 addr, int count, u8 *buf);
extern int mips32_pracc_write_mem16(mips_ejtag_t *ejtag_info, u32 addr, int count, u16 *buf);
extern int mips32_pracc_write_mem32(mips_ejtag_t *ejtag_info, u32 addr, int count, u32 *buf);
+extern int mips32_pracc_write_u32(mips_ejtag_t *ejtag_info, u32 addr, u32 *buf);
extern int mips32_pracc_read_regs(mips_ejtag_t *ejtag_info, u32 *regs);
extern int mips32_pracc_write_regs(mips_ejtag_t *ejtag_info, u32 *regs);
generated by cgit v1.2.3 (git 2.46.0) at 2024-12-25 05:26:44 +0000