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| author | Kartik Agaram <vc@akkartik.com> | 2019-08-01 10:54:27 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2019-08-01 10:54:27 -0700 |
| commit | 70decc7aefa641857f813823552fcd1e04d3a551 (patch) | |
| tree | 349c3e0917c6d40faece9433d41e4a24e3c27473 /apps/desugar.subx | |
| parent | adceed3d209fc22783acacce3aaef8ff43c1b038 (diff) | |
| download | mu-70decc7aefa641857f813823552fcd1e04d3a551.tar.gz | |
.
First step to cleaning up `desugar-register`: extract the common '%' to register literals.
Diffstat (limited to 'apps/desugar.subx')
| -rw-r--r-- | apps/desugar.subx | 54 |
1 files changed, 28 insertions, 26 deletions
diff --git a/apps/desugar.subx b/apps/desugar.subx index 9c7c6589..118aae59 100644 --- a/apps/desugar.subx +++ b/apps/desugar.subx @@ -155,6 +155,8 @@ $convert:check-for-register-literal: 3d/compare-EAX-and 0x25/imm32/percent 75/jump-if-not-equal $convert:regular-word/disp8 $convert:register-literal: + # ++word-slice->start + 4b/increment-EBX # EAX = desugar-register(word-slice) # . . push args 52/push-EDX @@ -232,9 +234,9 @@ desugar-register: # word : (address slice) -> register : (address byte array) 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP # . save registers 51/push-ECX - # if slice-equal?(word, "%eax") return reg 0 - # . EAX = slice-equal?(word, "%eax") - 68/push "%eax"/imm32 + # if slice-equal?(word, "eax") return reg 0 + # . EAX = slice-equal?(word, "eax") + 68/push "eax"/imm32 ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8) # . . call e8/call slice-equal?/disp32 @@ -244,9 +246,9 @@ desugar-register: # word : (address slice) -> register : (address byte array) b9/copy-to-ECX "3/mod/direct 0/rm32/EAX"/imm32 3d/compare-EAX-and 1/imm32 0f 84/jump-if-equal $desugar-register:end/disp32 - # if slice-equal?(word, "%ecx") return reg 1 - # . EAX = slice-equal?(word, "%ecx") - 68/push "%ecx"/imm32 + # if slice-equal?(word, "ecx") return reg 1 + # . EAX = slice-equal?(word, "ecx") + 68/push "ecx"/imm32 ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8) # . . call e8/call slice-equal?/disp32 @@ -256,9 +258,9 @@ desugar-register: # word : (address slice) -> register : (address byte array) b9/copy-to-ECX "3/mod/direct 1/rm32/ECX"/imm32 3d/compare-EAX-and 1/imm32 0f 84/jump-if-equal $desugar-register:end/disp32 - # if slice-equal?(word, "%edx") return reg 2 - # . EAX = slice-equal?(word, "%edx") - 68/push "%edx"/imm32 + # if slice-equal?(word, "edx") return reg 2 + # . EAX = slice-equal?(word, "edx") + 68/push "edx"/imm32 ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8) # . . call e8/call slice-equal?/disp32 @@ -268,9 +270,9 @@ desugar-register: # word : (address slice) -> register : (address byte array) b9/copy-to-ECX "3/mod/direct 2/rm32/EDX"/imm32 3d/compare-EAX-and 1/imm32 0f 84/jump-if-equal $desugar-register:end/disp32 - # if slice-equal?(word, "%ebx") return reg 3 - # . EAX = slice-equal?(word, "%ebx") - 68/push "%ebx"/imm32 + # if slice-equal?(word, "ebx") return reg 3 + # . EAX = slice-equal?(word, "ebx") + 68/push "ebx"/imm32 ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8) # . . call e8/call slice-equal?/disp32 @@ -280,9 +282,9 @@ desugar-register: # word : (address slice) -> register : (address byte array) b9/copy-to-ECX "3/mod/direct 3/rm32/EBX"/imm32 3d/compare-EAX-and 1/imm32 74/jump-if-equal $desugar-register:end/disp8 - # if slice-equal?(word, "%esp") return reg 4 - # . EAX = slice-equal?(word, "%esp") - 68/push "%esp"/imm32 + # if slice-equal?(word, "esp") return reg 4 + # . EAX = slice-equal?(word, "esp") + 68/push "esp"/imm32 ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8) # . . call e8/call slice-equal?/disp32 @@ -292,9 +294,9 @@ desugar-register: # word : (address slice) -> register : (address byte array) b9/copy-to-ECX "3/mod/direct 4/rm32/ESP"/imm32 3d/compare-EAX-and 1/imm32 74/jump-if-equal $desugar-register:end/disp8 - # if slice-equal?(word, "%ebp") return reg 5 - # . EAX = slice-equal?(word, "%ebp") - 68/push "%ebp"/imm32 + # if slice-equal?(word, "ebp") return reg 5 + # . EAX = slice-equal?(word, "ebp") + 68/push "ebp"/imm32 ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8) # . . call e8/call slice-equal?/disp32 @@ -304,9 +306,9 @@ desugar-register: # word : (address slice) -> register : (address byte array) b9/copy-to-ECX "3/mod/direct 5/rm32/EBP"/imm32 3d/compare-EAX-and 1/imm32 74/jump-if-equal $desugar-register:end/disp8 - # if slice-equal?(word, "%esi") return reg 6 - # . EAX = slice-equal?(word, "%esi") - 68/push "%esi"/imm32 + # if slice-equal?(word, "esi") return reg 6 + # . EAX = slice-equal?(word, "esi") + 68/push "esi"/imm32 ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8) # . . call e8/call slice-equal?/disp32 @@ -316,9 +318,9 @@ desugar-register: # word : (address slice) -> register : (address byte array) b9/copy-to-ECX "3/mod/direct 6/rm32/ESI"/imm32 3d/compare-EAX-and 1/imm32 74/jump-if-equal $desugar-register:end/disp8 - # if slice-equal?(word, "%edi") return reg 7 - # . EAX = slice-equal?(word, "%edi") - 68/push "%edi"/imm32 + # if slice-equal?(word, "edi") return reg 7 + # . EAX = slice-equal?(word, "edi") + 68/push "edi"/imm32 ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 . # push *(EBP+8) # . . call e8/call slice-equal?/disp32 @@ -364,7 +366,7 @@ test-desugar-register: 55/push-EBP 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP $test-desugar-register-1: - b8/copy-to-EAX "%eax"/imm32 + b8/copy-to-EAX "eax"/imm32 8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX 05/add-to-EAX 4/imm32 @@ -392,7 +394,7 @@ $test-desugar-register-1: # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP $test-desugar-register-2: - b8/copy-to-EAX "%edi"/imm32 + b8/copy-to-EAX "edi"/imm32 8b/copy 0/mod/indirect 0/rm32/EAX . . . 1/r32/ECX . . # copy *EAX to ECX 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX . 1/r32/ECX 4/disp8 . # copy EAX+ECX+4 to ECX 05/add-to-EAX 4/imm32 |