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Add support for F extension.

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This commit is contained in:
Tim Newsome
2017-09-14 16:21:49 -07:00
parent 1cd8ecfdcd
commit ce20be3d78
4 changed files with 33 additions and 8 deletions
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src/target/riscv/program.c
+27 -4
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@@ -3,6 +3,7 @@
#endif
#include "target/target.h"
#include "target/register.h"
#include "riscv.h"
#include "program.h"
#include "helper/log.h"
@@ -369,7 +370,7 @@ int riscv_program_addi(struct riscv_program *p, enum gdb_regno d, enum gdb_regno
return riscv_program_insert(p, addi(d, s, u));
}
int riscv_program_fsd(struct riscv_program *p, enum gdb_regno d, riscv_addr_t addr)
int riscv_program_fsx(struct riscv_program *p, enum gdb_regno d, riscv_addr_t addr)
{
assert(d >= GDB_REGNO_FPR0);
assert(d <= GDB_REGNO_FPR31);
@@ -378,21 +379,43 @@ int riscv_program_fsd(struct riscv_program *p, enum gdb_regno d, riscv_addr_t ad
: riscv_program_gettemp(p);
if (riscv_program_lah(p, t, addr) != ERROR_OK)
return ERROR_FAIL;
if (riscv_program_insert(p, fsd(d - GDB_REGNO_FPR0, t, riscv_program_gal(p, addr))) != ERROR_OK)
uint32_t instruction;
switch (p->target->reg_cache->reg_list[GDB_REGNO_FPR0].size) {
case 64:
instruction = fsd(d - GDB_REGNO_FPR0, t, riscv_program_gal(p, addr));
break;
case 32:
instruction = fsw(d - GDB_REGNO_FPR0, t, riscv_program_gal(p, addr));
break;
default:
return ERROR_FAIL;
}
if (riscv_program_insert(p, instruction) != ERROR_OK)
return ERROR_FAIL;
riscv_program_puttemp(p, t);
p->writes_memory = true;
return ERROR_OK;
}
int riscv_program_fld(struct riscv_program *p, enum gdb_regno d, riscv_addr_t addr)
int riscv_program_flx(struct riscv_program *p, enum gdb_regno d, riscv_addr_t addr)
{
assert(d >= GDB_REGNO_FPR0);
assert(d <= GDB_REGNO_FPR31);
enum gdb_regno t = riscv_program_gah(p, addr) == 0 ? GDB_REGNO_X0 : d;
if (riscv_program_lah(p, t, addr) != ERROR_OK)
return ERROR_FAIL;
if (riscv_program_insert(p, fld(d - GDB_REGNO_FPR0, t, riscv_program_gal(p, addr))) != ERROR_OK)
uint32_t instruction;
switch (p->target->reg_cache->reg_list[GDB_REGNO_FPR0].size) {
case 64:
instruction = fld(d - GDB_REGNO_FPR0, t, riscv_program_gal(p, addr));
break;
case 32:
instruction = flw(d - GDB_REGNO_FPR0, t, riscv_program_gal(p, addr));
break;
default:
return ERROR_FAIL;
}
if (riscv_program_insert(p, instruction) != ERROR_OK)
return ERROR_FAIL;
return ERROR_OK;
}