forked from auracaster/openocd
Add RISC-V support.
This supports both 0.11 and 0.13 versions of the debug spec. Support for `-rtos riscv` will come in a separate commit since it was easy to separate out, and is likely to be more controversial. Flash support for the SiFive boards will also come in a later commit. Change-Id: I1d38fe669c2041b4e21a5c54a091594aac3e2190 Signed-off-by: Tim Newsome <tim@sifive.com> Reviewed-on: http://openocd.zylin.com/4578 Tested-by: jenkins Reviewed-by: Liviu Ionescu <ilg@livius.net> Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
This commit is contained in:
Tim Newsome
committed by
Matthias Welwarsky
Matthias Welwarsky
parent
9363705820
commit
a51ab8ddf6
310
src/target/riscv/opcodes.h
Normal file
310
src/target/riscv/opcodes.h
Normal file
@@ -0,0 +1,310 @@
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#include "encoding.h"
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#define ZERO 0
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#define T0 5
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#define S0 8
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#define S1 9
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static uint32_t bits(uint32_t value, unsigned int hi, unsigned int lo)
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{
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return (value >> lo) & ((1 << (hi+1-lo)) - 1);
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}
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static uint32_t bit(uint32_t value, unsigned int b)
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{
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return (value >> b) & 1;
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}
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static uint32_t jal(unsigned int rd, uint32_t imm) __attribute__ ((unused));
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static uint32_t jal(unsigned int rd, uint32_t imm)
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{
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return (bit(imm, 20) << 31) |
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(bits(imm, 10, 1) << 21) |
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(bit(imm, 11) << 20) |
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(bits(imm, 19, 12) << 12) |
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(rd << 7) |
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MATCH_JAL;
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}
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static uint32_t csrsi(unsigned int csr, uint16_t imm) __attribute__ ((unused));
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static uint32_t csrsi(unsigned int csr, uint16_t imm)
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{
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return (csr << 20) |
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(bits(imm, 4, 0) << 15) |
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MATCH_CSRRSI;
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}
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static uint32_t sw(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t sw(unsigned int src, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 5) << 25) |
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(src << 20) |
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(base << 15) |
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(bits(offset, 4, 0) << 7) |
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MATCH_SW;
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}
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static uint32_t sd(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t sd(unsigned int src, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 5) << 25) |
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(src << 20) |
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(base << 15) |
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(bits(offset, 4, 0) << 7) |
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MATCH_SD;
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}
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static uint32_t sh(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t sh(unsigned int src, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 5) << 25) |
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(src << 20) |
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(base << 15) |
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(bits(offset, 4, 0) << 7) |
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MATCH_SH;
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}
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static uint32_t sb(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t sb(unsigned int src, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 5) << 25) |
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(src << 20) |
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(base << 15) |
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(bits(offset, 4, 0) << 7) |
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MATCH_SB;
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}
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static uint32_t ld(unsigned int rd, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t ld(unsigned int rd, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 0) << 20) |
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(base << 15) |
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(bits(rd, 4, 0) << 7) |
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MATCH_LD;
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}
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static uint32_t lw(unsigned int rd, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t lw(unsigned int rd, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 0) << 20) |
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(base << 15) |
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(bits(rd, 4, 0) << 7) |
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MATCH_LW;
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}
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static uint32_t lh(unsigned int rd, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t lh(unsigned int rd, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 0) << 20) |
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(base << 15) |
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(bits(rd, 4, 0) << 7) |
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MATCH_LH;
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}
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static uint32_t lb(unsigned int rd, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t lb(unsigned int rd, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 0) << 20) |
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(base << 15) |
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(bits(rd, 4, 0) << 7) |
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MATCH_LB;
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}
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static uint32_t csrw(unsigned int source, unsigned int csr) __attribute__ ((unused));
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static uint32_t csrw(unsigned int source, unsigned int csr)
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{
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return (csr << 20) | (source << 15) | MATCH_CSRRW;
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}
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static uint32_t addi(unsigned int dest, unsigned int src, uint16_t imm) __attribute__ ((unused));
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static uint32_t addi(unsigned int dest, unsigned int src, uint16_t imm)
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{
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return (bits(imm, 11, 0) << 20) |
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(src << 15) |
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(dest << 7) |
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MATCH_ADDI;
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}
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static uint32_t csrr(unsigned int rd, unsigned int csr) __attribute__ ((unused));
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static uint32_t csrr(unsigned int rd, unsigned int csr)
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{
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return (csr << 20) | (rd << 7) | MATCH_CSRRS;
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}
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static uint32_t csrrs(unsigned int rd, unsigned int rs, unsigned int csr) __attribute__ ((unused));
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static uint32_t csrrs(unsigned int rd, unsigned int rs, unsigned int csr)
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{
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return (csr << 20) | (rs << 15) | (rd << 7) | MATCH_CSRRS;
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}
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static uint32_t csrrw(unsigned int rd, unsigned int rs, unsigned int csr) __attribute__ ((unused));
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static uint32_t csrrw(unsigned int rd, unsigned int rs, unsigned int csr)
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{
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return (csr << 20) | (rs << 15) | (rd << 7) | MATCH_CSRRW;
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}
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static uint32_t fsw(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t fsw(unsigned int src, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 5) << 25) |
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(bits(src, 4, 0) << 20) |
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(base << 15) |
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(bits(offset, 4, 0) << 7) |
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MATCH_FSW;
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}
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static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 5) << 25) |
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(bits(src, 4, 0) << 20) |
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(base << 15) |
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(bits(offset, 4, 0) << 7) |
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MATCH_FSD;
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}
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static uint32_t flw(unsigned int dest, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t flw(unsigned int dest, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 0) << 20) |
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(base << 15) |
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(bits(dest, 4, 0) << 7) |
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MATCH_FLW;
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}
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static uint32_t fld(unsigned int dest, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t fld(unsigned int dest, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 0) << 20) |
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(base << 15) |
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(bits(dest, 4, 0) << 7) |
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MATCH_FLD;
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}
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static uint32_t fmv_x_w(unsigned dest, unsigned src) __attribute__ ((unused));
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static uint32_t fmv_x_w(unsigned dest, unsigned src)
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{
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return src << 15 |
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dest << 7 |
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MATCH_FMV_X_W;
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}
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static uint32_t fmv_x_d(unsigned dest, unsigned src) __attribute__ ((unused));
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static uint32_t fmv_x_d(unsigned dest, unsigned src)
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{
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return src << 15 |
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dest << 7 |
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MATCH_FMV_X_D;
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}
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static uint32_t fmv_w_x(unsigned dest, unsigned src) __attribute__ ((unused));
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static uint32_t fmv_w_x(unsigned dest, unsigned src)
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{
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return src << 15 |
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dest << 7 |
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MATCH_FMV_W_X;
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}
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static uint32_t fmv_d_x(unsigned dest, unsigned src) __attribute__ ((unused));
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static uint32_t fmv_d_x(unsigned dest, unsigned src)
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{
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return src << 15 |
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dest << 7 |
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MATCH_FMV_D_X;
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}
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static uint32_t ebreak(void) __attribute__ ((unused));
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static uint32_t ebreak(void)
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{
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return MATCH_EBREAK;
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}
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static uint32_t ebreak_c(void) __attribute__ ((unused));
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static uint32_t ebreak_c(void)
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{
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return MATCH_C_EBREAK;
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}
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static uint32_t fence_i(void) __attribute__ ((unused));
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static uint32_t fence_i(void)
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{
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return MATCH_FENCE_I;
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}
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static uint32_t lui(unsigned int dest, uint32_t imm) __attribute__ ((unused));
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static uint32_t lui(unsigned int dest, uint32_t imm)
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{
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return (bits(imm, 19, 0) << 12) |
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(dest << 7) |
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MATCH_LUI;
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}
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/*
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static uint32_t csrci(unsigned int csr, uint16_t imm) __attribute__ ((unused));
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static uint32_t csrci(unsigned int csr, uint16_t imm)
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{
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return (csr << 20) |
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(bits(imm, 4, 0) << 15) |
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MATCH_CSRRCI;
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}
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static uint32_t li(unsigned int dest, uint16_t imm) __attribute__ ((unused));
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static uint32_t li(unsigned int dest, uint16_t imm)
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{
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return addi(dest, 0, imm);
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}
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static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
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static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset)
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{
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return (bits(offset, 11, 5) << 25) |
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(bits(src, 4, 0) << 20) |
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(base << 15) |
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(bits(offset, 4, 0) << 7) |
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MATCH_FSD;
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}
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static uint32_t ori(unsigned int dest, unsigned int src, uint16_t imm) __attribute__ ((unused));
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static uint32_t ori(unsigned int dest, unsigned int src, uint16_t imm)
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{
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return (bits(imm, 11, 0) << 20) |
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(src << 15) |
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(dest << 7) |
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MATCH_ORI;
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}
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static uint32_t nop(void) __attribute__ ((unused));
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static uint32_t nop(void)
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{
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return addi(0, 0, 0);
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}
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*/
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static uint32_t xori(unsigned int dest, unsigned int src, uint16_t imm) __attribute__ ((unused));
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static uint32_t xori(unsigned int dest, unsigned int src, uint16_t imm)
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{
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return (bits(imm, 11, 0) << 20) |
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(src << 15) |
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(dest << 7) |
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MATCH_XORI;
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}
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static uint32_t srli(unsigned int dest, unsigned int src, uint8_t shamt) __attribute__ ((unused));
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static uint32_t srli(unsigned int dest, unsigned int src, uint8_t shamt)
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{
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return (bits(shamt, 4, 0) << 20) |
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(src << 15) |
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(dest << 7) |
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MATCH_SRLI;
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}
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static uint32_t fence(void) __attribute__((unused));
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static uint32_t fence(void)
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{
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return MATCH_FENCE;
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}
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static uint32_t auipc(unsigned int dest) __attribute__((unused));
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static uint32_t auipc(unsigned int dest)
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{
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return MATCH_AUIPC | (dest << 7);
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}
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