diff options
| author | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2005-07-02 14:58:51 +0000 |
|---|---|---|
| committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2005-07-02 14:58:51 +0000 |
| commit | 6af0bf9c7c3ab9ddbf74a3bf34e067761eb43c3d (patch) | |
| tree | 81d0ac2bbc2f0fdacfff7619c36ded224775c45f /target-mips/op_helper_mem.c | |
| parent | 6643d27ea00f3580fb0120219bd510f00b64bca5 (diff) | |
MIPS target (Jocelyn Mayer)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1464 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-mips/op_helper_mem.c')
| -rw-r--r-- | target-mips/op_helper_mem.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/target-mips/op_helper_mem.c b/target-mips/op_helper_mem.c new file mode 100644 index 0000000000..69793b0b97 --- /dev/null +++ b/target-mips/op_helper_mem.c @@ -0,0 +1,143 @@ +void glue(do_lwl, MEMSUFFIX) (void) +{ +#if defined (DEBUG_OP) + target_ulong sav = T0; +#endif + uint32_t tmp; + + tmp = glue(ldl, MEMSUFFIX)(T0 & ~3); + /* XXX: this is valid only in big-endian mode + * should be reverted for little-endian... + */ + switch (T0 & 3) { + case 0: + T0 = tmp; + break; + case 1: + T0 = (tmp << 8) | (T1 & 0x000000FF); + break; + case 2: + T0 = (tmp << 16) | (T1 & 0x0000FFFF); + break; + case 3: + T0 = (tmp << 24) | (T1 & 0x00FFFFFF); + break; + } +#if defined (DEBUG_OP) + if (logfile) { + fprintf(logfile, "%s: %08x - %08x %08x => %08x\n", + __func__, sav, tmp, T1, T0); + } +#endif + RETURN(); +} + +void glue(do_lwr, MEMSUFFIX) (void) +{ +#if defined (DEBUG_OP) + target_ulong sav = T0; +#endif + uint32_t tmp; + + tmp = glue(ldl, MEMSUFFIX)(T0 & ~3); + /* XXX: this is valid only in big-endian mode + * should be reverted for little-endian... + */ + switch (T0 & 3) { + case 0: + T0 = (tmp >> 24) | (T1 & 0xFFFFFF00); + break; + case 1: + T0 = (tmp >> 16) | (T1 & 0xFFFF0000); + break; + case 2: + T0 = (tmp >> 8) | (T1 & 0xFF000000); + break; + case 3: + T0 = tmp; + break; + } +#if defined (DEBUG_OP) + if (logfile) { + fprintf(logfile, "%s: %08x - %08x %08x => %08x\n", + __func__, sav, tmp, T1, T0); + } +#endif + RETURN(); +} + +void glue(do_swl, MEMSUFFIX) (void) +{ +#if defined (DEBUG_OP) + target_ulong sav; +#endif + uint32_t tmp; + + tmp = glue(ldl, MEMSUFFIX)(T0 & ~3); +#if defined (DEBUG_OP) + sav = tmp; +#endif + /* XXX: this is valid only in big-endian mode + * should be reverted for little-endian... + */ + switch (T0 & 3) { + case 0: + tmp = T1; + break; + case 1: + tmp = (tmp & 0xFF000000) | (T1 >> 8); + break; + case 2: + tmp = (tmp & 0xFFFF0000) | (T1 >> 16); + break; + case 3: + tmp = (tmp & 0xFFFFFF00) | (T1 >> 24); + break; + } + glue(stl, MEMSUFFIX)(T0 & ~3, tmp); +#if defined (DEBUG_OP) + if (logfile) { + fprintf(logfile, "%s: %08x - %08x %08x => %08x\n", + __func__, T0, sav, T1, tmp); + } +#endif + RETURN(); +} + +void glue(do_swr, MEMSUFFIX) (void) +{ +#if defined (DEBUG_OP) + target_ulong sav; +#endif + uint32_t tmp; + + tmp = glue(ldl, MEMSUFFIX)(T0 & ~3); +#if defined (DEBUG_OP) + sav = tmp; +#endif + /* XXX: this is valid only in big-endian mode + * should be reverted for little-endian... + */ + switch (T0 & 3) { + case 0: + tmp = (tmp & 0x00FFFFFF) | (T1 << 24); + break; + case 1: + tmp = (tmp & 0x0000FFFF) | (T1 << 16); + break; + case 2: + tmp = (tmp & 0x000000FF) | (T1 << 8); + break; + case 3: + tmp = T1; + break; + } + glue(stl, MEMSUFFIX)(T0 & ~3, tmp); +#if defined (DEBUG_OP) + if (logfile) { + fprintf(logfile, "%s: %08x - %08x %08x => %08x\n", + __func__, T0, sav, T1, tmp); + } +#endif + RETURN(); +} |