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| author | Michael Matz <matz@suse.de> | 2016-08-06 22:48:24 +0200 |
|---|---|---|
| committer | Michael Matz <matz@suse.de> | 2016-12-15 17:47:09 +0100 |
| commit | 45b24c37a0ea8886ac13c7a93741566c197071f4 (patch) | |
| tree | dedc1b489c46b7d194a9736443eb3dbf60c3a9f2 /i386-asm.c | |
| parent | 4e46c22d5ca4d03220e30fa524a5aba4b4df75f9 (diff) | |
| download | tinycc-45b24c37a0ea8886ac13c7a93741566c197071f4.tar.gz tinycc-45b24c37a0ea8886ac13c7a93741566c197071f4.tar.bz2 | |
x86-64-asm: Implement high %cr registers
Diffstat (limited to 'i386-asm.c')
| -rw-r--r-- | i386-asm.c | 15 |
1 files changed, 11 insertions, 4 deletions
@@ -279,12 +279,17 @@ static inline int get_reg_shift(TCCState *s1) } #ifdef TCC_TARGET_X86_64 -static int asm_parse_high_reg(int *type) +static int asm_parse_numeric_reg(int *type) { int reg = -1; if (tok >= TOK_IDENT && tok < tok_ident) { const char *s = table_ident[tok - TOK_IDENT]->str; char c; + *type = OP_REG64; + if (*s == 'c') { + s++; + *type = OP_CR; + } if (*s++ != 'r') return -1; /* Don't allow leading '0'. */ @@ -297,7 +302,9 @@ static int asm_parse_high_reg(int *type) if (reg > 15) return -1; if ((c = *s) == 0) - *type = OP_REG64; + ; + else if (*type != OP_REG64) + return -1; else if (c == 'b' && !s[1]) *type = OP_REG8; else if (c == 'w' && !s[1]) @@ -328,7 +335,7 @@ static int asm_parse_reg(int *type) } else if (tok == TOK_ASM_rip) { reg = -2; /* Probably should use different escape code. */ *type = OP_REG64; - } else if ((reg = asm_parse_high_reg(type)) >= 0 + } else if ((reg = asm_parse_numeric_reg(type)) >= 0 && (*type == OP_REG32 || *type == OP_REG64)) { ; #endif @@ -393,7 +400,7 @@ static void parse_operand(TCCState *s1, Operand *op) } else if (tok >= TOK_ASM_spl && tok <= TOK_ASM_dil) { op->type = OP_REG8 | OP_REG8_LOW; op->reg = 4 + tok - TOK_ASM_spl; - } else if ((op->reg = asm_parse_high_reg(&op->type)) >= 0) { + } else if ((op->reg = asm_parse_numeric_reg(&op->type)) >= 0) { ; #endif } else { |